mohit kumar 29
mohit kumar 29
  1. Find all the numbers in a string using regular expression in Python
  2. Check if the sum of perfect squares in an array is divisible by x
  3. Find the nth term of the series 0, 8, 64, 216, 512, . . .
  4. Sum of elements whose square root is present in the array
  5. Leftmost and rightmost indices of the maximum and the minimum element of an array
  6. Sum of elements from an array having even parity
  7. Count numbers have all 1s together in binary representation
  8. The most occurring number in a string using Regex in python
  9. All pairs whose xor gives unique prime
  10. Count of numbers which can be made power of 2 by given operation
  11. Find elements of array using XOR of consecutive elements
  12. Find the Nth term of the series 9, 45, 243,1377
  13. Pairs from an array that satisfy the given condition
  14. Find the sum of first N terms of the series 2*3*5, 3*5*7, 4*7*9, ...
  15. Jump in rank of a student after updating marks
  16. Program to find the nth term of the series -2, 4, -6, 8....
  17. Program to find the Nth term of the series 0, 3/1, 8/3, 15/5........
  18. Find the sum of non-prime elements in the given array
  19. Print all safe primes below N
  20. Count pairs in an array such that at least one element is prime
  21. Check whether the sum of absolute difference of adjacent digits is Prime or not
  22. Print prime numbers with prime sum of digits in an array
  23. Print all multiplicative primes <= N
  24. Find the node whose xor with x gives minimum value
  25. Find the node whose xor with x gives maximum value
  26. Find the node whose sum with X has maximum set bits
  27. Find the node whose absolute difference with X gives maximum value
  28. Find the node whose sum with X has minimum set bits
  29. Find the node whose absolute difference with X gives minimum value
  30. Count the nodes whose weight is a perfect square
  31. Count the nodes in the given tree whose weight is prime
  32. Count the nodes in the given tree whose weight is even
  33. Find the root of the sub-tree whose weighted sum is minimum
  34. Find the root of the sub-tree whose weighted sum XOR with X is minimum
  35. Find the root of the sub-tree whose weighted sum XOR with X is maximum
  36. Count the nodes in the given tree whose weight is a power of two
  37. Count the nodes in the given tree whose weight is even parity
  38. Count the nodes in the given tree whose sum of digits of weight is odd
  39. Count the nodes of the given tree whose weighted string is a palindrome
  40. Count the nodes of the given tree whose weight has X as a factor
  41. Count the nodes of a tree whose weighted string does not contain any duplicate characters
  42. Count the nodes of a tree whose weighted string is an anagram of the given string
  43. Count the nodes of the tree which make a pangram when concatenated with the sub-tree nodes
  44. Python | Count the array elements with factors less than or equal to the factors of given x
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  1. How to swap two numbers without using a temporary variable?
  2. Efficient way to multiply with 7
  3. Find the Number Occurring Odd Number of Times
  4. Find the Missing Number
  5. Two elements whose sum is closest to zero
  6. Find whether a given number is a power of 4 or not
  7. A Product Array Puzzle
  8. Check if array elements are consecutive | Added Method 3
  9. Smallest of three integers without comparison operators
  10. Count total set bits in all numbers from 1 to n
  11. Partition problem | DP-18
  12. Find the element that appears once
  13. Generate n-bit Gray Codes
  14. Minimum insertions to form a palindrome | DP-28
  15. Print all possible strings of length k that can be formed from a set of n characters
  16. Stable Marriage Problem
  17. Print all possible paths from top left to bottom right of a mXn matrix
  18. Count all possible paths from top left to bottom right of a mXn matrix
  19. Find the first repeating element in an array of integers
  20. K'th Smallest/Largest Element in Unsorted Array | Set 2 (Expected Linear Time)
  21. Given a matrix of 'O' and 'X', find the largest subsquare surrounded by 'X'
  22. Find the element that appears once in an array where every other element appears twice
  23. Find the nearest smaller numbers on left side in an array
  24. Sum of minimum and maximum elements of all subarrays of size k.
  25. Count numbers from 1 to n that have 4 as a digit
  26. Count distinct elements in every window of size k
  27. Trapping Rain Water
  28. Minimum Initial Points to Reach Destination
  29. Count of n digit numbers whose sum of digits equals to given sum
  30. Given an array of pairs, find all symmetric pairs in it
  31. Print a pattern without using any loop
  32. Find XOR of two number without using XOR operator
  33. Print individual digits as words without using if or switch
  34. Fibonacci Coding
  35. Count Fibonacci numbers in given range in O(Log n) time and O(1) space
  36. Longest Zig-Zag Subsequence
  37. Common elements in all rows of a given matrix
  38. Repeated subsequence of length 2 or more
  39. Find orientation of a pattern in a matrix
  40. Count pairs formed by distinct element sub-arrays
  41. Find smallest range containing elements from k lists
  42. Find the minimum difference between Shifted tables of two numbers
  43. Longest Common Increasing Subsequence (LCS + LIS)
  44. Remove duplicates from an array of small primes
  45. Rearrange positive and negative numbers with constant extra space
  46. Printing Maximum Sum Increasing Subsequence
  47. Print all n-digit strictly increasing numbers
  48. Calculate sum of all numbers present in a string
  49. Find Shortest distance from a guard in a Bank
  50. Count digit groupings of a number with given constraints
  51. Count Distinct Subsequences
  52. Frequency Measuring Techniques for Competitive Programming
  53. Length of Longest sub-string that can be removed
  54. Count all sorted rows in a matrix
  55. Count all pairs with given XOR
  56. Print matrix in diagonal pattern
  57. Minimum sum of two numbers formed from digits of an array
  58. Convert to a string that is repetition of a substring of k length
  59. Maximum 0's between two immediate 1's in binary representation
  60. Minimum sum subsequence such that at least one of every four consecutive elements is picked
  61. Find all distinct subset (or subsequence) sums of an array
  62. Sort even-placed elements in increasing and odd-placed in decreasing order
  63. Find sum of divisors of all the divisors of a natural number
  64. Print all possible consecutive numbers with sum N
  65. Find pair with greatest product in array
  66. Find pairs in array whose sums already exist in array
  67. Find elements which are present in first array and not in second
  68. k-th prime factor of a given number
  69. Queries on substring palindrome formation
  70. Count of index pairs with equal elements in an array
  71. Maximum number of groups of size 3 containing two type of items
  72. Minimum time required to produce m items
  73. Range Queries for Frequencies of array elements
  74. Check if reversing a sub array make the array sorted
  75. Allocate minimum number of pages
  76. Efficiently check if a string has all unique characters without using any additional data structure
  77. Largest subsequence having GCD greater than 1
  78. Nearest element with at-least one common prime factor
  79. Prime Factorization using Sieve O(log n) for multiple queries
  80. Maximum and Minimum in a square matrix.
  81. Count all pairs of an array which differ in K bits
  82. Ways to represent a number as a sum of 1's and 2's
  83. Make largest palindrome by changing at most K-digits
  84. Find all pairs (a,b) and (c,d) in array which satisfy ab = cd
  85. Search, insert and delete in a sorted array
  86. Check if frequency of each digit is less than the digit
  87. Count pairs with sum as a prime number and less than n
  88. Noble integers in an array (count of greater elements is equal to value)
  89. Find if n can be written as product of k numbers
  90. Count the number of subarrays having a given XOR
  91. Minimum cost for acquiring all coins with k extra coins allowed with every coin
  92. Find the largest three elements in an array
  93. Check whether an array can be fit into another array rearranging the elements in the array
  94. Minimum number of Appends needed to make a string palindrome
  95. Find a peak element in a 2D array
  96. Count the number of ways to divide an array into three contiguous parts having equal sum
  97. k-th distinct (or non-repeating) element in an array.
  98. Find index of an extra element present in one sorted array
  99. Print all distinct characters of a string in order (3 Methods)
  100. Find distinct elements common to all rows of a matrix
  101. k-th smallest absolute difference of two elements in an array
  102. Print a given matrix in reverse spiral form
  103. Print modified array after multiple array range increment operations
  104. Random list of M non-negative integers whose sum is N
  105. Program to print all substrings of a given string
  106. Count of only repeated element in a sorted array of consecutive elements
  107. Count subarrays having total distinct elements same as original array
  108. Find all pairs (a, b) in an array such that a % b = k
  109. Extract maximum numeric value from a given string | Set 1 (General approach)
  110. Elements of an array that are not divisible by any element of another array
  111. Divide the two given numbers by their common divisors
  112. Check whether the sum of absolute difference of adjacent digits is Prime or not
  113. Minimum insertions to form a palindrome with permutations allowed
  114. Nth Even length Palindrome
  115. Program to calculate the number of odd days in given number of years
  116. Find the character in first string that is present at minimum index in second string
  117. Find the overlapping sum of two arrays
  118. Program to print solid and hollow square patterns
  119. Count of integers of length N and value less than K such that they contain digits only from the given set
  120. Convert all substrings of length 'k' from base 'b' to decimal
  121. Check if the given string of words can be formed from words present in the dictionary
  122. Check if binary representation of a given number and its complement are anagram
  123. Next greater element in same order as input
  124. Minimum Index Sum for Common Elements of Two Lists
  125. Longest common substring in binary representation of two numbers
  126. Remove minimum number of elements such that no common element exist in both array
  127. Evaluate a boolean expression represented as string
  128. Count subarrays with equal number of occurrences of two given elements
  129. Count of sub-sequences which satisfy the given condition
  130. Count number of paths whose weight is exactly X and has at-least one edge of weight M
  131. Count number of distinct pairs whose sum exists in the given array
  132. Maximum sum bitonic subarray
  133. Check if a number is power of 8 or not
  134. C++ Program for Longest Increasing Subsequence
  135. Check if two unsorted arrays (with duplicates allowed) have same elements
  136. Positive elements at even and negative at odd positions (Relative order not maintained)
  137. Find substrings that contain all vowels
  138. Program to find if a character is vowel or Consonant
  139. Array range queries over range queries
  140. Smallest number k such that the product of digits of k is equal to n
  141. Generate two output strings depending upon occurrence of character in input string.
  142. Given a n-ary tree, count number of nodes which have more number of children than parents
  143. Program for diamond pattern with different layers
  144. Find the Majority Element | Set 3 (Bit Magic)
  145. Unique cells in a binary matrix
  146. Number of triangles that can be formed
  147. Number of subarrays having absolute sum greater than K | Set-2
  148. Mean of range in array
  149. Distance of closest zero to every element
  150. Combinations from n arrays picking one element from each array
  151. Tile Stacking Problem
  152. Cumulative frequency of count of each element in an unsorted array
  153. Print digit's position to be removed to make a number divisible by 6
  154. Maximum number of characters between any two same character in a string
  155. Longest subsequence such that difference between adjacents is one | Set 2
  156. Queries for the product of first N factorials
  157. Remove all characters other than alphabets from string
  158. Print symmetric double triangle pattern
  159. Elements to be added so that all elements of a range are present in array
  160. Only integer with positive value in positive negative value in array
  161. Divisors of n-square that are not divisors of n
  162. Largest number with prime digits
  163. Maximum Unique Element in every subarray of size K
  164. Check whether a number can be represented by sum of two squares
  165. Find if there is a rectangle in binary matrix with corners as 1
  166. Pair with given sum and maximum shortest distance from end
  167. Generate original array from an array that store the counts of greater elements on right
  168. Find minimum shift for longest common prefix
  169. Minimum jumps to reach last building in a matrix
  170. Program to find the minimum (or maximum) element of an array
  171. Find largest element from array without using conditional operator
  172. Program to print number with star pattern
  173. Make alphabets using the elements of an array
  174. Program to find third side of triangle using law of cosines
  175. Check whether second string can be formed from characters of first string
  176. Partition into two subarrays of lengths k and (N - k) such that the difference of sums is maximum
  177. Largest subset with sum of every pair as prime
  178. Minimum number of points to be removed to get remaining points on one side of axis
  179. Count number of increasing subsequences of size k
  180. Smallest subarray with all occurrences of a most frequent element
  181. Count subarrays with equal number of 1's and 0's
  182. Maximum possible elements which are divisible by 2
  183. Check if the given string is the same as its reflection in a mirror
  184. Number of terms in Geometric Series with given conditions
  185. Program to print V and inverted-V pattern
  186. Find the position of the last removed element from the array
  187. Count maximum-length palindromes in a String
  188. Construct sum-array with sum of elements in given range
  189. Longest Uncommon Subsequence
  190. Space efficient iterative method to Fibonacci number
  191. Program to copy the contents of one array into another in the reverse order
  192. Count of numbers appearing in the given ranges at-least K times
  193. Make all elements zero by decreasing any two elements by one at a time
  194. Count of elements such that difference between sum of left and right sub arrays is equal to a multiple of k
  195. Find minimum length sub-array which has given sub-sequence in it
  196. Maximum sum of increasing order elements from n arrays
  197. Find i'th Index character in a binary string obtained after n iterations
  198. Most frequent element in an array
  199. Least frequent element in an array
  200. Find the only repetitive element between 1 to n-1
  201. Largest even digit number not greater than N
  202. Find largest d in array such that a + b + c = d
  203. Sum of special triplets having elements from 3 arrays
  204. Array range queries for elements with frequency same as value
  205. Count substrings with each character occurring at most k times
  206. Maximum possible difference of two subsets of an array
  207. XOR of a subarray (range of elements)
  208. Count pairs in an array which have at least one digit common
  209. Find the Largest Cube formed by Deleting minimum Digits from a number
  210. Longest substring having K distinct vowels
  211. Print array elements that are divisible by at-least one other
  212. Minimum number using set bits of a given number
  213. Program to print the hollow numerical parallelogram
  214. Printing longest Increasing consecutive subsequence
  215. Count binary strings with twice zeros in first half
  216. Max sum of M non-overlapping subarrays of size K
  217. Find Sum of all unique sub-array sum for a given array.
  218. Prefixes with more a than b
  219. Find the value of N XOR'ed to itself K times
  220. Longest subarray with only one value greater than k
  221. Find the only element that appears b times
  222. Print all triplets with given sum
  223. Compute power of power k times % m
  224. Count elements present in first array but not in second
  225. Minimum steps to reach end from start by performing multiplication and mod operations with array elements
  226. Maximum number by concatenating every element in a rotation of an array
  227. Minimum operations required to make all the elements distinct in an array
  228. Previous greater element
  229. Count of elements of an array present in every row of NxM matrix
  230. Number of Counterclockwise shifts to make a string palindrome
  231. First non-repeating character using one traversal of string | Set 2
  232. Find the Nth Mosaic number
  233. Longest Common Subsequence | DP using Memoization
  234. Egg Dropping Puzzle with 2 Eggs and K Floors
  235. Elements of first array that have more frequencies
  236. Sum of similarities of string with all of its suffixes
  237. Smallest sum contiguous subarray | Set-2
  238. Maximum bishops that can be placed on N*N chessboard
  239. All elements in an array are Same or not?
  240. Program to print Sine-Wave Pattern
  241. Sum of all elements repeating 'k' times in an array
  242. Check if a number is in given base or not
  243. Find next palindrome prime
  244. Counting frequencies of array elements
  245. Maximum profit after buying and selling the stocks
  246. Find four factors of N with maximum product and sum equal to N | Set-2
  247. Find N in the given matrix that follows a pattern
  248. Find the Missing Number in a sorted array
  249. Elements that occurred only once in the array
  250. Check if the first and last digit of the smallest number forms a prime
  251. Length of longest common subsequence containing vowels
  252. Minimum number of items to be delivered
  253. Longest subarray having maximum sum
  254. Find the largest after deleting the given elements
  255. Solve the Logical Expression given by string
  256. Find the Initial Array from given array after range sum queries
  257. Longest dividing subsequence
  258. Maximize the product of four factors of a Number
  259. Find minimum number of Log value needed to calculate Log upto N
  260. Longest Subarray with Sum greater than Equal to Zero
  261. Longest subarray having difference in the count of 1's and 0's equal to k
  262. Minimum number greater than the maximum of array which cannot be formed using the numbers in the array
  263. Minimum changes required to make two arrays identical
  264. Count common subsequence in two strings
  265. Find four factors of N with maximum product and sum equal to N | Set 3
  266. Minimum and Maximum prime numbers in an array
  267. Minimum cost to buy N kilograms of sweet for M persons
  268. Program to print Kite Pattern
  269. Minimum odd cost path in a matrix
  270. Divide an array into K subarray with the given condition
  271. Maximize the value of A by replacing some of its digits with digits of B
  272. Find triplets in an array whose AND is maximum
  273. Find column with maximum sum in a Matrix
  274. Program to print the Zigzag pattern
  275. Find the k-th smallest divisor of a natural number N
  276. Pair with maximum difference in a Matrix
  277. Check whether it is possible to join two points given on circle such that distance between them is k
  278. Check if a pair with given absolute difference exists in a Matrix
  279. Find the sum of all highest occurring elements in an Array
  280. Sum of all minimum occurring elements in an Array
  281. Program to print Hut Star pattern
  282. Product of non-repeating (distinct) elements in an Array
  283. Sum of all prime numbers in an Array
  284. Product of all prime numbers in an Array
  285. Program to Print Mirrored Hollow Parallelogram
  286. Sum of all minimum frequency elements in Matrix
  287. Maximum number of Unique integers in Sub-Array of given size
  288. Find the smallest after deleting given elements
  289. Remove duplicates from unsorted array using Map data structure
  290. Remove elements that appear strictly less than k times
  291. Remove elements from the array which appear more than k times
  292. Find the k largest numbers after deleting the given elements
  293. Find the k smallest numbers after deleting given elements
  294. Number of leading zeros in binary representation of a given number
  295. Check if a number is a Mystery Number
  296. Find the Product of first N Prime Numbers
  297. Find subsequences with maximum Bitwise AND and Bitwise OR
  298. Count and Sum of composite elements in an array
  299. Counting inversions in an array using segment tree
  300. Count elements such that there are exactly X elements with values greater than or equal to X
  301. Find maximum distance between any city and station
  302. Program to find Prime Numbers Between given Interval
  303. Product of all the Composite Numbers in an array
  304. Convert given array to Arithmetic Progression by adding an element
  305. Count pairs in an array such that frequency of one is at least value of other
  306. Replace each element by the difference of the total size of the array and frequency of that element
  307. Sum of array Elements without using loops and recursion
  308. Magical Pattern
  309. Count pairs in an array such that both elements has equal set bits
  310. Largest number not greater than N all the digits of which are odd
  311. Find a number that divides maximum array elements
  312. Check if the array has an element which is equal to sum of all the remaining elements
  313. Check whether the frequencies of all the characters in a string are prime or not
  314. Count pairs from two arrays whose modulo operation yields K
  315. Find all numbers that divide maximum array elements
  316. Minimum Increment operations to make Array unique
  317. Sort an array according to the increasing count of distinct Prime Factors
  318. Count Triplets such that one of the numbers can be written as sum of the other two
  319. Number of leaf nodes in the subtree of every node of an n-ary tree
  320. Number of ways to reach the end of matrix with non-zero AND value
  321. Minimize the number of steps required to reach the end of the array
  322. Maximum sum subarray such that start and end values are same
  323. Find maximum element of each column in a matrix
  324. Maximum length substring with highest frequency in a string
  325. Count number of increasing sub-sequences : O(NlogN)
  326. Sum of elements in an array having prime frequency
  327. Remove minimum elements from array so that max <= 2 * min
  328. Find smallest and largest element from square matrix diagonals
  329. Find the sum of Eigen Values of the given N*N matrix
  330. Find the largest interval that contains exactly one of the given N integers.
  331. Find alphabet in a Matrix which has maximum number of stars around it
  332. Find a sub matrix with maximum XOR
  333. Minimum Distance Between Words of a String
  334. Count the number of special permutations
  335. Integers from the range that are composed of a single distinct digit
  336. Count numbers in a range having GCD of powers of prime factors equal to 1
  337. LCM of N numbers modulo M
  338. Minimum in an array which is first decreasing then increasing
  339. Minimum steps to reach any of the boundary edges of a matrix | Set 1
  340. Form N-copy string with add, remove and append operations
  341. Find minimum x such that (x % k) * (x / k) == n
  342. Sum of kth powers of first n natural numbers
  343. Find elements of array using XOR of consecutive elements
  344. Find the maximum possible value of the minimum value of modified array
  345. Area of Reuleaux Triangle
  346. Biggest Reuleaux Triangle within A Square
  347. Count pairs in an array that hold i+j= arr[i]+arr[j]
  348. Reach the numbers by making jumps of two given lengths
  349. Largest hexagon that can be inscribed within an equilateral triangle
  350. A Sum Array Puzzle
  351. Diagonal of a Regular Heptagon
  352. Diagonal of a Regular Decagon
  353. Length of Diagonal of a n-sided regular polygon
  354. Generate all rotations of a number
  355. Count number of pairs (i, j) such that arr[i] * arr[j] > arr[i] + arr[j]
  356. How to delete an element from the Set by passing its value in C++
  357. Minimum distance to the end of a grid from source
  358. Generate permutation of 1 to N such that absolute difference of consecutive numbers give K distinct integers
  359. Count rows in a matrix that consist of same element
  360. Number of subarrays have bitwise OR >= K
  361. Smallest multiple of 3 which consists of three given non-zero digits
  362. Minimum number of sets with numbers less than Y
  363. Minimum number N such that total set bits of all numbers from 1 to N is at-least X
  364. Count pairs of parentheses sequences such that parentheses are balanced
  365. Minimum steps required to convert X to Y where a binary matrix represents the possible conversions
  366. Distribute N candies among K people
  367. Program to find nth term of the series 1 4 15 24 45 60 92
  368. Possible cuts of a number such that maximum parts are divisible by 3
  369. First and Last Three Bits
  370. K length words that can be formed from given characters without repetition
  371. Program to print Step Pattern
  372. Length of the longest substring with consecutive characters
  373. Largest sub-set possible for an array satisfying the given condition
  374. Ways to paint N paintings such that adjacent paintings don't have same colors
  375. Maximum length subarray with LCM equal to product
  376. Find probability of selecting element from kth column after N iterations
  377. Find the sum of the all amicable numbers up to N
  378. Sum of P terms of an AP if Mth and Nth terms are given
  379. Ternary Search
  380. Biggest Reuleaux Triangle within a Square which is inscribed within a Circle
  381. Biggest Reuleaux Triangle within a Square which is inscribed within a Right angle Triangle
  382. Largest right circular cylinder that can be inscribed within a cone which is in turn inscribed within a cube
  383. Print all Proth primes up to N
  384. Find Pth term of a GP if Mth and Nth terms are given
  385. Count distinct elements in an array
  386. Count of strings that become equal to one of the two strings after one removal
  387. Minimum cost of choosing 3 increasing elements in an array of size N
  388. Rearrange Odd and Even values in Alternate Fashion in Ascending Order
  389. Count number of sub-sequences with GCD 1
  390. Largest number less than or equal to N/2 which is coprime to N
  391. Reverse Middle X Characters
  392. Find the area of largest circle inscribed in ellipse
  393. Print multiples of Unit Digit of Given Number
  394. Rectangle with minimum possible difference between the length and the width
  395. Count strings that end with the given pattern
  396. Biggest Reuleaux Triangle inscribed within a Square inscribed in an equilateral triangle
  397. Biggest Reuleaux Triangle inscirbed within a square inscribed in a semicircle
  398. Count of values of x <= n for which (n XOR x) = (n - x)
  399. Generate lexicographically smallest string of 0, 1 and 2 with adjacent swaps allowed
  400. Find the final X and Y when they are Altering under given condition
  401. Choose atleast two elements from array such that their GCD is 1 and cost is minimum
  402. Check if it is possible to reach a number by making jumps of two given length
  403. Count the number of survivors
  404. Remove characters from a numeric string such that string becomes divisible by 8
  405. Remove any corner X rows and columns from a matrix
  406. Count of pairs of (i, j) such that ((n % i) % j) % n is maximized
  407. Largest sphere that can be inscribed in a right circular cylinder inscribed in a frustum
  408. Minimum positive integer divisible by C and is not in range [A, B]
  409. Count all Prime Length Palindromic Substrings
  410. Find minimum difference between any two elements | Set 2
  411. Check if a word is present in a sentence
  412. Find Intersection of all Intervals
  413. Maximum length subsequence such that adjacent elements in the subsequence have a common factor
  414. Number of strings that satisfy the given condition
  415. Check if a string can be converted to another string by replacing vowels and consonants
  416. Sum of XOR of all subarrays
  417. Sum of bitwise AND of all subarrays
  418. Minimum index i such that all the elements from index i to given index are equal
  419. Find the longest Fibonacci-like subarray of the given array
  420. Split an array into groups of 3 such that X3 is divisible by X2 and X2 is divisible by X1
  421. Queries for number of distinct integers in Suffix
  422. Maximum positive integer divisible by C and is in the range [A, B]
  423. Ways to form an array having integers in given range such that total sum is divisible by 2
  424. Select numbers in such way to maximize the amount of money
  425. Check whether the number can be made perfect square after adding 1
  426. Number of Hamiltonian cycle
  427. Split the array into odd number of segments of odd lengths
  428. Check if an array of 1s and 2s can be divided into 2 parts with equal sum
  429. Minimum number of stacks possible using boxes of given capacities
  430. Count array elements that divide the sum of all other elements
  431. Number of trailing zeroes in base 16 representation of N!
  432. Count paths with distance equal to Manhattan distance
  433. Find the number of solutions to the given equation
  434. Find whether only two parallel lines contain all coordinates points or not
  435. XOR of a submatrix queries
  436. Find the number of distinct pairs of vertices which have a distance of exactly k in a tree
  437. Find the minimum number of preprocess moves required to make two strings equal
  438. Find the Nth term of the series where each term f[i] = f[i - 1] - f[i - 2]
  439. Minimum number of given powers of 2 required to represent a number
  440. Sum of minimum element of all sub-sequences of a sorted array
  441. k-th missing element in an unsorted array
  442. Maximum occurrence of prefix in the Array
  443. Longest subsequence such that adjacent elements have at least one common digit
  444. Count all elements in the array which appears at least K times after their first occurrence
  445. Two equal sum segment range queries
  446. Numbers in a Range with given Digital Root
  447. Sum of numbers from 1 to N which are in Lucas Sequence
  448. Check for an array element that is co-prime with all others
  449. Ways to form a group from three groups with given constraints
  450. Find GCD of factorial of elements of given array
  451. Minimum steps to make all the elements of the array divisible by 4
  452. Find sum of a[i]%a[j] for all valid pairs
  453. Sum of elements in an array whose difference with the mean of another array is less than k
  454. Count of numbers from range [L, R] whose sum of digits is Y
  455. Find the sum of all Truncatable primes below N
  456. Search an element in given N ranges
  457. Check if the given array can be reduced to zeros with the given operation performed given number of times
  458. Find the numbers of strings that can be formed after processing Q queries
  459. Find the index of the element in an array which divides most elements before it
  460. Count number of trailing zeros in Binary representation of a number using Bitset
  461. Minimum array elements to be changed to make Recaman's sequence
  462. Maximum array sum that can be obtained after exactly k changes
  463. Replace the odd positioned elements with their cubes and even positioned elements with their squares
  464. Pairs of strings which on concatenating contains each character of "string"
  465. Generate original array from difference between every two consecutive elements
  466. Count number of ways to reach a given score in a Matrix
  467. Count of sub-strings that do not contain all the characters from the set {'a', 'b', 'c'} at the same time
  468. Find the area of the shaded region formed by the intersection of four semicircles in a square
  469. Maximum points covered after removing an Interval
  470. Minimum steps to color the tree with given colors
  471. Check whether factorial of N is divisible by sum of first N natural numbers
  472. Count of distinct sums that can be obtained by adding prime numbers from given arrays
  473. Maximum element in a sorted and rotated array
  474. Find the minimum number of steps to reach M from N
  475. Count the number of operations required to reduce the given number
  476. Sum of the series Kn + ( K(n-1) * (K-1)1 ) + ( K(n-2) * (K-1)2 ) + ....... (K-1)n
  477. Find the value of N when F(N) = f(a)+f(b) where a+b is the minimum possible and a*b = N
  478. Area of the biggest ellipse inscribed within a rectangle
  479. Count distinct points visited on the number line
  480. Count consecutive pairs of same elements
  481. Length of the longest increasing subsequence such that no two adjacent elements are coprime
  482. Find n positive integers that satisfy the given equations
  483. Find the Kth node in the DFS traversal of a given subtree in a Tree
  484. Maximize the happiness of the groups on the Trip
  485. Find (1^n + 2^n + 3^n + 4^n) mod 5 | Set 2
  486. Find the longest sub-string which is prefix, suffix and also present inside the string
  487. Find missing element in a sorted array of consecutive numbers
  488. Minimum number of changes such that elements are first Negative and then Positive
  489. Find the number of players who roll the dice when the dice output sequence is given
  490. Predict the winner of the game on the basis of absolute difference of sum by selecting numbers
  491. Program to calculate product of digits of a number
  492. Count the number of currency notes needed
  493. Minimize the sum calculated by repeatedly removing any two elements and inserting their sum to the Array
  494. Queries to answer the number of ones and zero to the left of given index
  495. Program to find the maximum difference between the index of any two different numbers
  496. Minimum possible final health of the last monster in a game
  497. Check if all the 1's in a binary string are equidistant or not
  498. Find the sum of digits of a number at even and odd places
  499. Find the value at kth position in the generated array
  500. Count the number of sub-arrays such that the average of elements present in the sub-array is greater than that not present in the sub-array
  501. Find the lexicographically smallest string which satisfies the given condition
  502. Find the number of sub arrays in the permutation of first N natural numbers such that their median is M
  503. Travelling Salesman Problem implementation using BackTracking
  504. Find HCF of two numbers without using recursion or Euclidean algorithm
  505. Queries to check if substring[L...R] is palindrome or not
  506. Count pairs of non-overlapping palindromic sub-strings of the given string
  507. Number of triangles possible with given lengths of sticks which are powers of 2
  508. Count of elements whose absolute difference with the sum of all the other elements is greater than k
  509. Find minimum positive integer x such that a(x^2) + b(x) + c >= k
  510. Print 2-D co-ordinate points in ascending order followed by their frequencies
  511. Number of subsequences with zero sum
  512. Count of sub-strings that do not consist of the given character
  513. Count the pairs of vowels in the given string
  514. Find the kth element in the series generated by the given N ranges
  515. Check whether the given string is a valid identifier
  516. Count of sub-strings of length n possible from the given string
  517. Maximum absolute difference in an array
  518. Move all zeros to start and ones to end in an Array of random integers
  519. Find out the minimum number of coins required to pay total amount
  520. Maximum elements which can be crossed using given units of a and b
  521. Sum of the series 1, 2, 4, 3, 5, 7, 9, 6, 8, 10, 11, 13.. till N-th term
  522. Reverse alternate k characters in a string
  523. Check if a number from every row can be selected such that xor of the numbers is greater than zero
  524. Area of triangle formed by the axes of co-ordinates and a given straight line
  525. Check if given two straight lines are identical or not
  526. Minimum number of elements to be removed such that the sum of the remaining elements is equal to k
  527. Find maximum product of digits among numbers less than or equal to N
  528. Check if the frequency of any character is more than half the length of the string
  529. Maximum length palindrome that can be created with characters in range L and R
  530. Number of ways to arrange K different objects taking N objects at a time
  531. Game Theory in Balanced Ternary Numeral System | (Moving 3k steps at a time)
  532. Find the position of box which occupies the given ball
  533. Find the Diameter or Longest chord of a Circle
  534. Determine the position of the third person on regular N sided polygon
  535. Length of the chord of the circle whose radius and the angle subtended at the center by the chord is given
  536. Maximum length of subarray such that sum of the subarray is even
  537. Sliding Window Maximum (Maximum of all subarrays of size k) using stack in O(n) time
  538. Longest alternative parity subsequence
  539. Roots of the quadratic equation when a + b + c = 0 without using Shridharacharya formula
  540. Generate an array of size K which satisfies the given conditions
  541. Rearrange the array to maximize the number of primes in prefix sum of the array
  542. Find the occurrence of the given binary pattern in the binary representation of the array elements
  543. Bitwise AND of sub-array closest to K
  544. Optimal Strategy for a Game | Set 2
  545. Sum of GCDs of each row of the given matrix
  546. Queries to find the maximum Xor value between X and the nodes of a given level of a perfect binary tree
  547. Find the index which is the last to be reduced to zero after performing a given operation
  548. Number of common tangents between two circles if their centers and radius is given
  549. Check if a circle lies inside another circle or not
  550. Build original array from the given sub-sequences
  551. Print all leaf nodes of an n-ary tree using DFS
  552. Count the nodes of the tree whose weighted string contains a vowel
  553. Count of cells in a matrix which give a Fibonacci number when the count of adjacent cells is added
  554. Find the permutation p from the array q such that q[i] = p[i+1] - p[i]
  555. Print all neighbour nodes within distance K
  556. Longest substring such that no three consecutive characters are same
  557. Number of ways to arrange a word such that no vowels occur together
  558. Minimum count of elements that sums to a given number
  559. Maximum items that can be filled in K Knapsacks of given Capacity
  560. Sum of all perfect numbers present in an array
  561. Print all the sub diagonal elements of the given square matrix
  562. Print all the super diagonal elements of the given square matrix
  563. Find the number of p-sided squares in a grid with K blacks painted
  564. Construct the Rooted tree by using start and finish time of its DFS traversal
  565. Find the total number of composite factor for a given number
  566. Count of substrings which contains a given character K times
  567. Total number of odd length palindrome sub-sequence around each centre
  568. Print Lower Hessenberg matrix of order N
  569. Print Upper Hessenberg matrix of order N
  570. Count common elements in two arrays containing multiples of N and M
  571. Total number of possible Binary Search Trees using Catalan Number
  572. Minimum operations to make sum of neighbouring elements <= X
  573. Number of triangles formed by joining vertices of n-sided polygon with one side common
  574. Maximum number of region in which N non-parallel lines can divide a plane
  575. Count pairs of strings that satisfy the given conditions
  576. Find the maximum number of elements divisible by 3
  577. Rearrange characters in a string such that no two adjacent are same using hashing
  578. Number of triangles formed by joining vertices of n-sided polygon with two common sides and no common sides
  579. Find Nth smallest number that is divisible by 100 exactly K times
  580. Find maximum value of the last element after reducing the array with given operations
  581. Find optimal weights which can be used to weigh all the weights in the range [1, X]
  582. Case-specific Sorting of Strings
  583. Number of ways of writing N as a sum of 4 squares
  584. Find a sequence of N prime numbers whose sum is a composite number
  585. Number of possible permutations when absolute difference between number of elements to the right and left are given
  586. Find the Nth term divisible by a or b or c
  587. Find K vertices in the graph which are connected to at least one of remaining vertices
  588. Reverse individual words with O(1) extra space
  589. Count of numbers whose 0th and Nth bits are set
  590. Percentage increase in the cylinder if the height is increased by given percentage but radius remains constant
  591. Percentage increase in volume of the sphere if radius is increased by a given percentage
  592. Find a number containing N - 1 set bits at even positions from the right
  593. Sentence Case of a given Camel cased string
  594. Minimum steps required to convert the matrix into lower hessenberg matrix
  595. Find a subarray whose sum is divisible by size of the array
  596. Optimally accommodate 0s and 1s from a Binary String into K buckets
  597. Flip minimum signs of array elements to get minimum sum of positive elements possible
  598. Find the number which when added to the given ratio a : b, the ratio changes to c : d
  599. Longest Consecuetive Subsequence when only one insert operation is allowed
  600. Sum of Semi-Prime Numbers less than or equal to N
  601. Find three element from given three arrays such that their sum is X | Set 2
  602. Number of intersections between two ranges
  603. Maximum element in an array such that its previous and next element product is maximum
  604. Number of ways of distributing N identical objects in R distinct groups
  605. Number of ways of distributing N identical objects in R distinct groups with no groups empty
  606. Total ways of choosing X men and Y women from a total of M men and W women
  607. Sort an array without changing position of negative numbers
  608. Greatest contiguous sub-array of size K
  609. Find Leftmost and Rightmost node of BST from its given preorder traversal
  610. Minimum number of steps to convert a given matrix into Diagonally Dominant Matrix
  611. Longest sub-array with equal number of alphabets and numeric characters
  612. Distinct adjacent elements in a binary array
  613. Find a partition point in array to maximize its xor sum
  614. 21 Matchsticks Problem
  615. Length of longest subarray in which elements greater than K are more than elements not greater than K
  616. Count of strings in the first array which are smaller than every string in the second array
  617. Number of N length sequences whose product is M
  618. Remove an element to maximize the GCD of the given array
  619. Number of hours after which the second person moves ahead of the first person if they travel at a given speed
  620. Number formed by the rightmost set bit in N
  621. Count of pairs between two arrays such that the sums are distinct
  622. Sequence with sum K and minimum sum of absolute differences between consecutive elements
  623. Find minimum possible values of A, B and C when two of the (A + B), (A + C) and (B + C) are given
  624. Find the color of given node in an infinite binary tree
  625. Make all the array elements odd with minimum operations of given type
  626. Arrange N elements in circular fashion such that all elements are strictly less than sum of adjacent elements
  627. Check if all the elements can be made equal on dividing with X and Y
  628. Count of N digit numbers possible which satisfy the given conditions
  629. Distinct strings such that they contains given strings as sub-sequences
  630. Count pairs with given sum | Set 2
  631. Probability of distributing M items among X bags such that first bag contains N items
  632. Minimum operations required to convert X to Y by multiplying X with the given co-primes
  633. Partition the array in K segments such that bitwise AND of individual segment sum is maximized
  634. Count ways to divide circle using N non-intersecting chord | Set-2
  635. Find k ordered pairs in array with minimum difference d
  636. Largest and smallest digit of a number
  637. Maximum length sub-array which satisfies the given conditions
  638. Minimum number of Bottles visible when a bottle can be enclosed inside another Bottle
  639. Sum of the distances from every node to all other nodes is maximum
  640. Perimeter of an Ellipse
  641. Find the number of occurrences of a character upto preceding position
  642. Longest sub string of 0's in a binary string which is repeated K times
  643. XOR in a range of a binary array
  644. Swap all occurrences of two characters to get lexicographically smallest string
  645. Remove minimum elements from the array such that 2*min becomes more than max
  646. Count of elements that can be deleted without disturbing the mean of the initial array
  647. Maximum sum of the array after dividing it into three segments
  648. Find prime numbers in the first half and second half of an array
  649. Smallest element greater than X not present in the array
  650. Check if the given string is vowel prime
  651. Euler zigzag numbers ( Alternating Permutation )
  652. Program for sum of cosh(x) series upto Nth term
  653. Alcuin's Sequence
  654. Wedderburn–Etherington number
  655. Find the final sequence of the array after performing given operations
  656. Find the kth smallest number with sum of digits as m
  657. Rearrange the characters of the string such that no two adjacent characters are consecutive English alphabets
  658. Count number of ways to reach destination in a maze
  659. Ramanujan Prime
  660. Quadruplet pair with XOR zero in the given Array
  661. Program to find first N Fermat Numbers
  662. Recursive program to find all Indices of a Number
  663. Right most non-zero digit in multiplication of array elements
  664. Maximum number of given operations to remove the entire string
  665. Count of all possible pairs of disjoint subsets of integers from 1 to N
  666. Print all the peaks and troughs in an Array of Integers
  667. Queries to print the character that occurs the maximum number of times in a given range
  668. Subsequence X of length K such that gcd(X[0], X[1]) + (X[2], X[3]) + ... is maximized
  669. Maximum Bitwise AND value of subsequence of length K
  670. Sum of N terms in the expansion of Arcsin(x)
  671. Product of Primes of all Subsets
  672. Largest substring with same Characters
  673. Maximum value of division of two numbers in an Array
  674. Nambiar Number Generator
  675. Sum of prime numbers without odd prime digits
  676. Maximum number of elements without overlapping in a Line
  677. Find the sum of elements of the Matrix generated by the given rules
  678. Sum of the sums of all possible subsets
  679. Concentric Hexagonal Numbers
  680. Find the diagonal of the Cube
  681. Nearest greater number by interchanging the digits
  682. Find the maximum cost path from the bottom-left corner to the top-right corner
  683. Check whether two points (x1, y1) and (x2, y2) lie on same side of a given line or not
  684. Check if the first and last digit of number N is prime and their sum is less than K
  685. Minimize the cost of buying the Objects
  686. Sum of digits with even number of 1's in their binary representation
  687. Count number of ways to reach destination in a Maze using BFS
  688. Remove duplicates from unsorted array using Set data structure
  689. Minimum operations required to convert a binary string to all 0s or all 1s
  690. Find the smallest positive number which can not be represented by given digits
  691. Program to duplicate Vowels in String
  692. Find the remainder when First digit of a number is divided by its Last digit
  693. Find the remaining balance after the transaction
  694. Print the path between any two nodes of a tree | DFS
  695. Count the number of occurrences of a particular digit in a number
  696. Percentage increase in the volume of cuboid if length, breadth and height are increased by fixed percentages
  697. Count number of ways to get Odd Sum
  698. Convert an unbalanced bracket sequence to a balanced sequence
  699. Maximum String Partition
  700. Count of integers that divide all the elements of the given array
  701. Count number of bits to be flipped to convert A to B | Set-2
  702. Minimum number of Fibonacci jumps to reach end
  703. Print all the permutation of length L using the elements of an array | Iterative
  704. Reversing a Queue using another Queue
  705. Check which player visits more number of Nodes
  706. Reverse every word of the string except the first and the last character
  707. Find F(n) when F(i) and F(j) of a sequence are given
  708. First N terms whose sum of digits is a multiple of 10
  709. Sand Timer Flip Counting Problem
  710. Count of triplets that satisfy the given equation
  711. Lexicographically smallest string of length N and sum K
  712. Minimum increment operations to make K elements equal
  713. Minimum deletions required to make frequency of each letter unique
  714. Count number of substrings of a string consisting of same characters
  715. Check if the bracket sequence can be balanced with at most one change in the position of a bracket
  716. Repeated sum of first N natural numbers
  717. Product of elements in an array having prime frequency
  718. Number of sub arrays with negative product
  719. Find the XOR of first N Prime Numbers
  720. Find the farthest smaller number in the right side
  721. Check if the array has an element which is equal to XOR of remaining elements
  722. Replace elements with absolute difference of smallest element on left and largest element on right
  723. Find the number of pairs such that their gcd is equals to 1
  724. Find number of subarrays with XOR value a power of 2
  725. Summation of floor of harmonic progression
  726. Find the sum of all possible pairs in an array of N elements
  727. Find subarray with given sum with negatives allowed in constant space
  728. Count of numbers in the range [L, R] which satisfy the given conditions
  729. Maximum perimeter of a square in a 2D grid
  730. Check if array contains contiguous integers with duplicates allowed
  731. Find the character made by adding all the characters of the given string
  732. Count of triples (A, B, C) where A*C is greater than B*B
  733. Count of distinct remainders when N is divided by all the numbers from the range [1, N]
  734. Count the number of subsequences of length k having equal LCM and HCF
  735. Count of subsets not containing adjacent elements
  736. Check if the rows of a binary matrix can be made unique by removing a single column
  737. Check if a right-angled triangle can be formed by moving any one of the coordinates
  738. Minimum cost to make all array elements equal
  739. Bitwise AND of the sum of prime numbers and the sum of composite numbers in an array
  740. Queries to check whether all the elements in the given range occurs even number of times
  741. Sum of squares of all Subsets of given Array
  742. Prime Subset Product Problem
  743. Program to find the number from given holes
  744. Find the minimum number of moves to reach end of the array
  745. Absolute difference between the XOR of Non-Prime numbers and Prime numbers of an Array
  746. Find third number such that sum of all three number becomes prime
  747. Angle between 3 given vertices in a n-sided regular polygon
  748. Count of elements which are equal to the XOR of the next two elements
  749. Number of occurrences of a given angle formed using 3 vertices of a n-sided regular polygon
  750. Minimum characters that are to be inserted such that no three consecutive characters are same
  751. Check if the Matrix satisfies the given conditions
  752. Count all substrings having character K
  753. Find all even length binary sequences with same sum of first and second half bits | Iterative
  754. Check if all elements of binary array can be made 1
  755. Find the possible permutation of the bits of N
  756. Value to be subtracted from array elements to make sum of all elements equals K
  757. In how many ways the ball will come back to the first boy after N turns
  758. Convert N to M with given operations using dynamic programming
  759. Count of N-digit numbers in base K with no two consecutive zeroes
  760. Check whether N is a Factorion or not
  761. Count of elements which are not at the correct position
  762. Sentinel Linear Search
  763. Count the pairs in an array such that the difference between them and their indices is equal
  764. Program to calculate area of a rhombus whose one side and diagonal are given
  765. Program to implement FLAMES game
  766. Check if two given Circles are Orthogonal or not
  767. Find the ratio of number of elements in two Arrays from their individual and combined average
  768. Check whether two strings can be made equal by copying their characters with the adjacent ones
  769. Minimum possible number with the given operation
  770. Check if it is possible to move from (0, 0) to (X, Y) in exactly K steps
  771. Find next greater element with no consecutive 1 in it's binary representation
  772. Significant Inversions in an Array
  773. Minimum absolute difference between N and any power of 2
  774. Number of ways in which N can be represented as the sum of two positive integers
  775. Permutations of n things taken all at a time with m things never come together
  776. Minimize the cost of partitioning an array into K groups
  777. Range maximum query using Sparse Table
  778. Number of ways to erase exactly one element in the Binary Array to make XOR zero
  779. Maximum distance between two 1's in Binary representation of N
  780. Minimum steps required to reduce all the elements of the array to zero
  781. Find a pair (n,r) in an integer array such that value of nPr is maximum
  782. Minimum length String with Sum of the alphabetical values of the characters equal to N
  783. Minimum number of additons to make the string balanced
  784. Maximum number of line intersections formed through intersection of N planes
  785. Program to find Nth odd Fibonacci Number
  786. Sum of all the numbers present at given level in Pascal's triangle
  787. Longest Increasing Subsequence using Longest Common Subsequence Algorithm
  788. Sorting objects using In-Place sorting algorithm
  789. Product of values of all possible non-empty subsets of given Array
  790. Sum of the count of number of adjacent squares in an M X N grid
  791. Count of N-bit binary numbers without leading zeros
  792. Find the next fibonacci number
  793. Find missing elements from an Array
  794. Count of elements on the left which are divisible by current element
  795. Find the minimum value of X for an expression
  796. Minimum increment or decrement operations required to make the array sorted
  797. Number of words that can be made using exactly P consonants and Q vowels from the given string
  798. Angle subtended by an arc at the centre of a circle
  799. Represent the given number as the sum of two composite numbers
  800. Maximum number of distinct positive integers that can be used to represent N
  801. Find the previous fibonacci number
  802. Find the quadratic equation from the given roots
  803. Smallest N digit number which is a perfect fourth power
  804. Kth number from the set of multiples of numbers A, B and C
  805. Count of 0s in an N-level hexagon
  806. Maximum of all the integers in the given level of Pascal triangle
  807. Program to print the Diagonals of a Matrix
  808. Count number of ways to arrange first N numbers
  809. Finding the converging element of the diagonals in a square matrix
  810. Generate an array B[] from the given array A[] which satisfies the given conditions
  811. Find X and Y intercepts of a line passing through the given points
  812. Number of edges in a perfect binary tree with N levels
  813. Maximum possible Bitwise OR of the two numbers from the range [L, R]
  814. Find the minimum cost to cross the River
  815. Find last two remaining elements after removing median of any 3 consecutive elements repeatedly
  816. Check if given path between two nodes of a graph represents a shortest paths
  817. Check if the bracket sequence can be balanced with at most one change in the position of a bracket | Set 2
  818. Program to clear K-th bit of a number N
  819. Sum of subsets of all the subsets of an array | O(3^N)
  820. Longest sub-sequence with a given OR value : O(N) Approach
  821. Find a number X such that (X XOR A) is minimum and the count of set bits in X and B are equal
  822. Form N by adding 1 or 2 in minimum number of operations X where X is divisible by M
  823. Find the Mid-Alphabet for each index of the given Pair of Strings
  824. Number of ways to divide string in sub-strings such to make them in lexicographically increasing sequence
  825. Find Kth smallest value for b such that a + b = a | b
  826. Smallest subarray with GCD as 1 | Segment Tree
  827. Number of subsets with sum divisible by M | Set 2
  828. Maximum sum subarray of even length
  829. Check if two strings can be made equal by swapping one character among each other
  830. Minimum possible travel cost among N cities
  831. N consecutive ropes problem
  832. Count of columns with odd number of 1s
  833. Maximum Bitwise OR pair from a range
  834. Check whether all the substrings have number of vowels atleast as that of consonants
  835. Sum of the updated array after performing the given operation
  836. Find the distance between two person after reconstruction of queue
  837. Reduce every element of the array to it's half retaining the sum zero
  838. Find maximum unreachable height using two ladders
  839. Find permutation array from the cumulative sum array
  840. Minimum cost to build N blocks from one block
  841. Count of times second string can be formed from the characters of first string
  842. Maximize distance between any two consecutive 1's after flipping M 0's
  843. Find the centroid of a non-self-intersecting closed Polygon
  844. Check if there exists a prime number which gives Y after being repeatedly subtracted from X
  845. Find the count of distinct numbers in a range
  846. Program to check the validity of a Password
  847. Count of non-empty sequences of a String
  848. Longest subsequence having difference atmost K
  849. Count of primes below N which can be expressed as the sum of two primes
  850. Find all the possible remainders when N is divided by all positive integers from 1 to N+1
  851. Maximum sum combination from the given array
  852. Find the final number obtained after performing the given operation
  853. Check if a symmetric plus is possible from the elements of the given array
  854. Check if given string contains all the digits
  855. Winner in the Rock-Paper-Scissor game using Bit manipulation
  856. Maximum sum of two elements whose digit sum is equal
  857. Count of numbers whose sum of increasing powers of digits is equal to the number itself
  858. Print all perfect squares from the given range
  859. Place the prisoners into cells to maximize the minimum difference between any two
  860. Count of numbers from the range [L, R] which contains at least one digit that divides K
  861. Color tree with minimum colors such that colors of edges incident to a vertex are different
  862. How to sort an array in a single loop?
  863. Count subarrays such that remainder after dividing sum of elements by K gives count of elements
  864. Count ways to reach the Nth stair using any step from the given array
  865. Minimum steps to get 1 at the center of a binary matrix
  866. Number of cells in a matrix that satisfy the given condition
  867. Find if the glass will be empty or not when the rate of drinking is given
  868. Sum of lengths of all paths possible in a given tree
  869. Reverse substrings between each pair of parenthesis
  870. Knapsack with large Weights
  871. Remove all the prime numbers from the given array
  872. Find whether X exists in Y after jumbling X
  873. Largest number dividing maximum number of elements in the array
  874. Remove one element to get minimum OR value
  875. Remove one element to get maximum XOR
  876. Number of subsequences in a given binary string divisible by 2
  877. Number of sub-strings in a given binary string divisible by 2
  878. Minimum elements to be removed from the ends to make the array sorted
  879. XOR two binary strings of unequal lengths
  880. Smallest number dividing minimum number of elements in the array | Set 2
  881. Expected number of moves to reach the end of a board | Dynamic programming
  882. Smallest non-zero substring which has any permutation divisible by 2^K
  883. Satisfy the parabola when point (A, B) and the equation is given
  884. Minimum K such that sum of array elements after division by K does not exceed S
  885. Smallest number dividing minimum number of elements in the Array
  886. Longest substring with K unique characters using Binary Search
  887. Program to find the time remaining for the day to complete
  888. Percentage change in Hemisphere volume if radius is changed
  889. Minimum cost to traverse from one index to another in the String
  890. Number of trailing zeros in N * (N - 2) * (N - 4)*....
  891. Largest row-wise and column-wise sorted sub-matrix
  892. Subarray permutation that satisfies the given condition
  893. Size of the largest divisible subset in an Array
  894. Number of pairs of lines having integer intersection points
  895. Prime Numbers present at Kth level of a Binary Tree
  896. Program to calculate Percentile of Students
  897. Area of the circle that has a square and a circle inscribed in it
  898. Radius of the inscribed circle within three tangent circles
  899. Construct XOR tree by Given leaf nodes of Perfect Binary Tree
  900. Divide N into K unique parts such that gcd of those parts is maximum
  901. Find two numbers with the given LCM and minimum possible difference
  902. Finding the Frobenius Norm of a given matrix
  903. Find an integer that is common in the maximum number of given arithmetic progressions
  904. Query to check if a range is made up of consecutive elements
  905. Count of pairs satisfying the given condition
  906. Problem in comparing Floating point numbers and how to compare them correctly?
  907. Number of binary strings such that there is no substring of length ≥ 3
  908. Jaro and Jaro-Winkler similarity
  909. Number of square matrices with all 1s
  910. Minimum integer that can be obtained by swapping adjacent digits of different parity
  911. Check if one string can be converted to another
  912. Reduce a number to 1 by performing given operations | Set 2
  913. Count number of ways to cover a distance | Set 2
  914. Number of pairs of arrays (A, B) such that A is ascending, B is descending and A[i] ≤ B[i]
  915. Count of different groups using Graph