Code_Mech
Code_Mech
  1. Perl | lt operator
  2. Perl | rename() Function
  3. jQuery | :last Selector
  4. HTML | DOM Storage key() Method
  5. HTML | DOM Storage removeItem() Method
  6. jQuery | outerHeight() Method
  7. jQuery | length property
  8. jQuery | slideDown() Method
  9. jQuery | slideToggle() Method
  10. Perl | delete() Function
  11. Perl | defined() Function
  12. jQuery | toggle() Method
  13. Perl | each() Function
  14. Perl | index() Function
  15. Perl | int() function
  16. Perl | join() Function
  17. Perl | keys() Function
  18. Perl | last in loop
  19. Perl | lc() Function for Lower Case Conversion
  20. Perl | lcfirst() Function
  21. Perl | length() Function
  22. jQuery | :even Selector
  23. Perl | oct() Function
  24. Perl | log() Function
  25. Perl | push() Function
  26. jQuery | :first Selector
  27. Perl | rand() Function
  28. jQuery | :first-child Selector
  29. Perl | prototype() Function
  30. Perl | reset() Function
  31. PHP | parse_url() Function
  32. PHP | json_decode() Function
  33. Perl matching operator
  34. Perl | quotemeta() Function
  35. Perl | qq operator
  36. Perl | Array pop() Function
  37. Perl | print operator
  38. Perl | redo operator
  39. Perl | return() Function
  40. Perl | my keyword
  41. Perl | reverse() Function
  42. Perl | rindex() Function
  43. Perl | ord() Function
  44. Perl | q operator
  45. Perl | substitution Operator
  46. Perl | scalar keyword
  47. Perl | shift() Function
  48. Perl | sleep() Function
  49. Perl | sort() Function
  50. Perl | sprintf() Function
  51. Perl | sqrt() Function
  52. Perl | next operator
  53. Perl | uc() Function
  54. Perl | unshift() Function
  55. Perl | values() Function
  56. Perl | cmp Operator
  57. Perl | gt operator
  58. Perl | le operator
  59. Perl | ge operator
  60. Perl | eq operator
  61. Perl | ne operator
  62. Perl | getc Function
  63. Perl | tell() Function
  64. Perl | wantarray() Function
  65. Perl | glob() Function
  66. PHP | http_build_query() Function
  67. Perl | Encapsulation in OOPs
  68. Perl | DBI(Database Independent Interface) Module Set - 1
  69. Perl | Math::BigInt->bzero() method
  70. Perl | Math::BigInt->config() method
  71. Perl | Math::BigInt->brsft() method
  72. Perl | Math::BigInt->from_oct() method
  73. Perl | Math::BigInt->from_hex() method
  74. Perl | Math::BigInt->from_bin() method
  75. Perl | Math::BigInt->bnan() method
  76. Perl | Math::BigInt->bone() method
  77. Perl | Math::BigInt->binf() method
  78. Perl | Math::BigInt->bneg() method
You may use GeeksforGeeks CONTRIBUTE portal to help other geeks. For more info, please refer this.

  1. How to swap two numbers without using a temporary variable?
  2. Find the node with minimum value in a Binary Search Tree
  3. Segregate Even and Odd numbers
  4. Find Union and Intersection of two unsorted arrays
  5. Evaluation order of operands
  6. Sorted order printing of a given array that represents a BST
  7. Find the repeating and the missing | Added 3 new methods
  8. Find the minimum distance between two numbers
  9. Smallest of three integers without comparison operators
  10. Matrix Chain Multiplication | DP-8
  11. Print all sequences of given length
  12. Pascal's Triangle
  13. Count all possible paths from top left to bottom right of a mXn matrix
  14. Remove minimum elements from either side such that 2*min becomes more than max
  15. Mobile Numeric Keypad Problem
  16. Longest Even Length Substring such that Sum of First and Second Half is same
  17. Rearrange an array such that 'arr[j]' becomes 'i' if 'arr[i]' is 'j' | Set 1
  18. Maximum product of a triplet (subsequnece of size 3) in array
  19. Find even occurring elements in an array of limited range
  20. Count number of substrings with exactly k distinct characters
  21. Rearrange positive and negative numbers with constant extra space
  22. Dynamic Programming | High-effort vs. Low-effort Tasks Problem
  23. Program for Armstrong Numbers
  24. Binary Indexed Tree : Range Updates and Point Queries
  25. Interpolation Search
  26. Remove minimum number of characters so that two strings become anagram
  27. Find a partition point in array
  28. Divide array into two sub-arrays such that their averages are equal
  29. Minimum operations required to remove an array
  30. Maximize sum of N X N upper left sub-matrix from given 2N X 2N matrix
  31. Count passing car pairs
  32. Make n using 1s and 2s with minimum number of terms multiple of k
  33. Count substrings with same first and last characters
  34. Count pairs with sum as a prime number and less than n
  35. Find maximum (or minimum) in Binary Tree
  36. Program to add two polynomials
  37. Replace all ‘0’ with ‘5’ in an input Integer
  38. Find the largest three elements in an array
  39. Triangular Numbers
  40. Reverse an array without using subtract sign ‘-‘ anywhere in the code
  41. Number of times the largest perfect square number can be subtracted from N
  42. Slope of the line parallel to the line with the given slope
  43. HTML | DOM Style backgroundClip Property
  44. Painting Fence Algorithm
  45. Replace every element of the array with BitWise XOR of all other
  46. Count number of strings (made of R, G and B) using given combination
  47. Divide the two given numbers by their common divisors
  48. Print the string by ignoring alternate occurrences of any character
  49. Minimum insertions to form a palindrome with permutations allowed
  50. Number of substrings divisible by 4 in a string of integers
  51. Master Theorem For Subtract and Conquer Recurrences
  52. Josephus Problem Using Bit Magic
  53. Print triplets with sum less than or equal to k
  54. Smallest element in an array that is repeated exactly 'k' times.
  55. Program to Count numbers on fingers
  56. HTML | DOM Textarea autofocus Property
  57. Maximise the size of consecutive element subsets in an array
  58. Binary array after M range toggle operations
  59. Smallest index such that there are no 0 or 1 to its right
  60. Program to count digits in an integer (4 Different Methods)
  61. Print N-bit binary numbers having more 1’s than 0’s in all prefixes
  62. Replace two substrings (of a string) with each other
  63. Double Base Palindrome
  64. Program to print hollow rectangle or square star patterns
  65. Minimum cost to make two strings identical by deleting the digits
  66. Concatenated string with uncommon characters in Python
  67. Program to find the number of region in Planar Graph
  68. Program for triangular patterns of alphabets
  69. Program to print non square numbers
  70. Construct sum-array with sum of elements in given range
  71. Converting one string to other using append and delete last operations
  72. Calculate area of pentagon with given diagonal
  73. Sort 1 to N by swapping adjacent elements
  74. Dyck Words of given length
  75. Sum of pairwise products
  76. Invert actual bits of a number
  77. n-th number whose sum of digits is ten
  78. Hypercube Graph
  79. Largest of two distinct numbers without using any conditional statements or operators
  80. Program for scalar multiplication of a matrix
  81. Program to display all alphabets from A to Z in uppercase and lowercase both
  82. Prefixes with more a than b
  83. Check for balanced parentheses in an expression | O(1) space
  84. Lexicographically Kth smallest way to reach given coordinate from origin
  85. Largest gap in an array
  86. Duplicates in an array in O(n) time and by using O(1) extra space | Set-3
  87. Format specifiers in C
  88. Modify string by removing vowels in between two consonants
  89. Perform n steps to convert every digit of a number in the format [count][digit]
  90. Find the sum of non-prime elements in the given array
  91. Array Manipulation and Sum
  92. Sort 3 numbers
  93. Maximum bishops that can be placed on N*N chessboard
  94. Range product queries in an array
  95. Smallest divisor D of N such that gcd(D, M) is greater than 1
  96. Hyperfactorial of a number
  97. First strictly greater element in a sorted array in Java
  98. First strictly smaller element in a sorted array in Java
  99. Difference between fundamental data types and derived data types
  100. Recursive program to print triangular patterns
  101. Minimum number greater than the maximum of array which cannot be formed using the numbers in the array
  102. Check whether a given Number is Power-Isolated or not
  103. Length of largest sub-array having primes strictly greater than non-primes
  104. Program to solve the Alligation Problem
  105. Program to print Hut Star pattern
  106. Product of all prime numbers in an Array
  107. Minimum number of nodes in an AVL Tree with given height
  108. Find number of cavities in a matrix
  109. Find time taken for signal to reach all positions in a string
  110. Ways of selecting men and women from a group to make a team
  111. Find single Movement in a Matrix
  112. Program to convert the diagonal elements of the matrix to 0
  113. Largest number less than N with digit sum greater than the digit sum of N
  114. Construct a binary string following the given constraints
  115. Check if a number is Triperfect Number
  116. Largest right circular cylinder within a frustum
  117. Minimum and Maximum number of pairs in m teams of n people
  118. Move all Uppercase char to the end of string
  119. Maximum sum of all elements of array after performing given operations
  120. Check if the given decimal number has 0 and 1 digits only
  121. Largest Divisor of a Number not divisible by a perfect square
  122. Sum of the multiples of two numbers below N
  123. Largest palindromic number in an array
  124. Find the nth term of the series 0, 8, 64, 216, 512, . . .
  125. Sum of integers upto N with given unit digit
  126. Leftmost and rightmost indices of the maximum and the minimum element of an array
  127. Minimum value that divides one number and divisible by other
  128. Minimum in an array which is first decreasing then increasing
  129. Count of numbers which can be made power of 2 by given operation
  130. Biggest Reuleaux Triangle within A Square
  131. Largest hexagon that can be inscribed within an equilateral triangle
  132. Count Subarrays with Consecutive elements differing by 1
  133. Count numbers in a range that are divisible by all array elements
  134. Diagonal of a Regular Heptagon
  135. Print numbers in matrix diagonal pattern
  136. Remove exactly one element from the array such that max - min is minimum
  137. Count number of pairs (i, j) such that arr[i] * arr[j] > arr[i] + arr[j]
  138. Minimum prime number operations to convert A to B
  139. Check if it is possible to draw a straight line with the given direction cosines
  140. Largest square that can be inscribed within a hexagon which is inscribed within an equilateral triangle
  141. Print n 0s and m 1s such that no two 0s and no three 1s are together
  142. Biggest Reuleaux Triangle within a Square which is inscribed within a Right angle Triangle
  143. Largest right circular cylinder that can be inscribed within a cone which is in turn inscribed within a cube
  144. Count distinct elements in an array
  145. Check whether the given character is in upper case, lower case or non alphabetic character
  146. Rectangle with minimum possible difference between the length and the width
  147. Biggest Reuleaux Triangle inscirbed within a square inscribed in a semicircle
  148. Find safe cells in a matrix
  149. Count of values of x <= n for which (n XOR x) = (n - x)
  150. Find array using different XORs of elements in groups of size 4
  151. Count of sub-strings that are divisible by K
  152. Count of pairs of (i, j) such that ((n % i) % j) % n is maximized
  153. Largest sphere that can be inscribed in a right circular cylinder inscribed in a frustum
  154. Count all Prime Length Palindromic Substrings
  155. Maximum GCD from Given Product of Unknowns
  156. Decrypt a string encrypted by repeating i-th character i times
  157. HTML | DOM Time Object
  158. Smallest integer greater than n such that it consists of digit m exactly k times
  159. Check if a binary string contains consecutive same or not
  160. Cost of painting n * m grid
  161. Minimum number of operations to move all uppercase characters before all lower case characters
  162. Minimum value to be added to X such that it is at least Y percent of N
  163. Choose points from two ranges such that no point lies in both the ranges
  164. Maximize big when both big and small can be exchanged
  165. Count the number of rhombi possible inside a rectangle of given size
  166. Maximize the sum of products of the degrees between any two vertices of the tree
  167. Program to calculate the area between two Concentric Circles
  168. Generate a string consisting of characters 'a' and 'b' that satisfy the given conditions
  169. Sum of bitwise AND of all subarrays
  170. Source to destination in 2-D path with fixed sized jumps
  171. Find index i such that prefix of S1 and suffix of S2 till i form a palindrome when concatenated
  172. Minimum index i such that all the elements from index i to given index are equal
  173. Find the longest Fibonacci-like subarray of the given array
  174. Maximum positive integer divisible by C and is in the range [A, B]
  175. Minimum number of moves to make a binary array K periodic
  176. Iterating over all possible combinations in an Array using Bits
  177. Ways to form an array having integers in given range such that total sum is divisible by 2
  178. Minimum removals to make array sum odd
  179. Check whether the number can be made perfect square after adding 1
  180. Number of Hamiltonian cycle
  181. Maximum Bitwise AND pair from given range
  182. Check if an array of 1s and 2s can be divided into 2 parts with equal sum
  183. Count array elements that divide the sum of all other elements
  184. Number of trailing zeroes in base 16 representation of N!
  185. Count paths with distance equal to Manhattan distance
  186. Find the number of solutions to the given equation
  187. Minimum LCM and GCD possible among all possible sub-arrays
  188. Find the Nth term of the series where each term f[i] = f[i - 1] - f[i - 2]
  189. Find N % 4 (Remainder with 4) for a large value of N
  190. Minimum possible sum of array elements after performing the given operation
  191. XOR of XORs of all sub-matrices
  192. Minimum elements to be removed such that sum of adjacent elements is always even
  193. Find Nth positive number whose digital root is X
  194. Longest Sub-array with maximum average value
  195. Ways to Remove Edges from a Complete Graph to make Odd Edges
  196. Count of all even numbers in the range [L, R] whose sum of digits is divisible by 3
  197. Sum of numbers from 1 to N which are in Lucas Sequence
  198. Replace every consonant sequence with its length in the given string
  199. Minimum cost to make two strings same
  200. Find smallest number K such that K % p = 0 and q % K = 0
  201. Maximum length of balanced string after swapping and removal of characters
  202. Missing even and odd elements from the given arrays
  203. Sum of numbers from 1 to N which are in Fibonacci Sequence
  204. Deletions of "01" or "10" in binary string to make it free from "01" or "10"
  205. Check if a number can be represented as sum of non zero powers of 2
  206. Find kth smallest number in range [1, n] when all the odd numbers are deleted
  207. Find Nth term of the series 1, 5, 32, 288 ...
  208. Count numbers which are divisible by all the numbers from 2 to 10
  209. Sum of the series (1*2) + (2*3) + (3*4) + ...... upto n terms
  210. Maximum Primes whose sum is equal to given N
  211. Sum of the series 1^1 + 2^2 + 3^3 + ..... + n^n using recursion
  212. Numbers that are not divisible by any number in the range [2, 10]
  213. Count of a, b & c after n seconds for given reproduction rate
  214. Find the K-th minimum element from an array concatenated M times
  215. Smallest integer > 1 which divides every element of the given array
  216. Series summation if T(n) is given and n is very large
  217. Count of all N digit numbers such that num + Rev(num) = 10^N - 1
  218. Find the total guests that are present at the party
  219. Find A and B from list of divisors
  220. Check if the given array is mirror-inverse
  221. Count of numbers from range [L, R] whose sum of digits is Y
  222. Check if a Queen can attack a given cell on chessboard
  223. Addition of two numbers without propagating Carry
  224. Number of steps required to reach point (x,y) from (0,0) using zig-zag way
  225. Position of the K-th set bit in a number
  226. Find the number of good permutations
  227. Find a distinct pair (x, y) in given range such that x divides y
  228. Largest number N which can be reduced to 0 in K steps
  229. Find the smallest number X such that X! contains at least Y trailing zeros.
  230. Minimum cost to reach end of array array when a maximum jump of K index is allowed
  231. Count pairs with bitwise OR less than Max
  232. Largest sphere that can be inscribed within a cube which is in turn inscribed within a right circular cone
  233. Programs for printing pyramid patterns using recursion
  234. Maximize the median of the given array after adding K elements to the same array
  235. Find amount of water wasted after filling the tank
  236. Sum of Fibonacci Numbers in a range
  237. Minimize the cost to split a number
  238. Minimum number of given operation required to convert n to m
  239. Maximum consecutive one’s (or zeros) in a binary circular array
  240. Maximum number of continuous Automorphic numbers
  241. Given count of digits 1, 2, 3, 4, find the maximum sum possible
  242. Find the good permutation of first N natural numbers
  243. Sum of degrees of all nodes of a undirected graph
  244. Maximum number of candies that can be bought
  245. Times required by Simple interest for the Principal to become Y times itself
  246. Replace the odd positioned elements with their cubes and even positioned elements with their squares
  247. Count the number of non-increasing subarrays
  248. Count number of ways to reach a given score in a Matrix
  249. Count of sub-strings that do not contain all the characters from the set {'a', 'b', 'c'} at the same time
  250. Maximum points covered after removing an Interval
  251. Find the original matrix when largest element in a row and a column are given
  252. XOR of all the elements in the given range [L, R]
  253. Check if factorial of N is divisible by the sum of squares of first N natural numbers
  254. Find the number of integers from 1 to n which contains digits 0's and 1's only
  255. Maximum element in a sorted and rotated array
  256. Find the minimum number of steps to reach M from N
  257. Check if a given number divides the sum of the factorials of its digits
  258. Sum of the series Kn + ( K(n-1) * (K-1)1 ) + ( K(n-2) * (K-1)2 ) + ....... (K-1)n
  259. Number of ways for playing first move optimally in a NIM game
  260. Area of the biggest ellipse inscribed within a rectangle
  261. Remove elements to make array sorted
  262. Count all prefixes of the given binary array which are divisible by x
  263. Count consecutive pairs of same elements
  264. Find (1^n + 2^n + 3^n + 4^n) mod 5 | Set 2
  265. Find the number of elements greater than k in a sorted array
  266. Find maximum sum taking every Kth element in the array
  267. Find missing element in a sorted array of consecutive numbers
  268. Count the number of currency notes needed
  269. Divide array into two parts with equal sum according to the given constraints
  270. Largest ellipse that can be inscribed within a rectangle which in turn is inscribed within a semicircle
  271. Find the lexicographically smallest string which satisfies the given condition
  272. Check if product of first N natural numbers is divisible by their sum
  273. Find HCF of two numbers without using recursion or Euclidean algorithm
  274. Maximum sum of cocktail glass in a 2D matrix
  275. Number of triangles possible with given lengths of sticks which are powers of 2
  276. Count of elements whose absolute difference with the sum of all the other elements is greater than k
  277. Find minimum positive integer x such that a(x^2) + b(x) + c >= k
  278. Count of sub-strings that do not consist of the given character
  279. Maximize the maximum subarray sum after removing atmost one element
  280. Dudeney Numbers
  281. Sum of elements in 1st array such that number of elements less than or equal to them in 2nd array is maximum
  282. Find the kth element in the series generated by the given N ranges
  283. Count of sub-strings of length n possible from the given string
  284. Find out the minimum number of coins required to pay total amount
  285. Longest substring of only 4's from the first N characters of the infinite string
  286. Equation of straight line passing through a given point which bisects it into two equal line segments
  287. JavaScript | RegExp \n Metacharacter
  288. Distance between two parallel lines
  289. Minimum number of elements to be removed such that the sum of the remaining elements is equal to k
  290. Check if the frequency of any character is more than half the length of the string
  291. Highest power of 2 that divides a number represented in binary
  292. Maximum length palindrome that can be created with characters in range L and R
  293. Number of ways to arrange K different objects taking N objects at a time
  294. Game Theory in Balanced Ternary Numeral System | (Moving 3k steps at a time)
  295. Minimum number of cubes whose sum equals to given number N
  296. Count number of subsets whose median is also present in the same subset
  297. Ratio of the distance between the centers of the circles and the point of intersection of two transverse common tangents to the circles
  298. Count squares with odd side length in Chessboard
  299. Check whether two strings contain same characters in same order
  300. Print all the sub diagonal elements of the given square matrix
  301. Check whether str1 can be converted to str2 with the given operations
  302. Find a partition point in array to maximize its xor sum
  303. Length of longest subarray in which elements greater than K are more than elements not greater than K
  304. Find the count of M character words which have at least one character repeated
  305. Maximum length sub-array which satisfies the given conditions
  306. Right most non-zero digit in multiplication of array elements
  307. Check whether two points (x1, y1) and (x2, y2) lie on same side of a given line or not
  308. Sum of digits with even number of 1's in their binary representation
  309. Minimum operations required to convert a binary string to all 0s or all 1s
  310. Find the remainder when First digit of a number is divided by its Last digit
  311. Count the number of occurrences of a particular digit in a number
  312. Percentage increase in the volume of cuboid if length, breadth and height are increased by fixed percentages
  313. Sum of values of all possible non-empty subsets of the given array
  314. Find a pair (n,r) in an integer array such that value of nPr is maximum
  315. Number of coloured 0's in an N-level hexagon
  316. Find the quadratic equation from the given roots
  317. Smallest N digit number which is a perfect fourth power
  318. Count number of ways to arrange first N numbers
  319. Number of edges in a perfect binary tree with N levels
  320. Sum of all the numbers in the Nth parenthesis
  321. Maximum LCM among all pairs (i, j) of first N natural numbers
  322. Number of cells in the Nth order figure
  323. Count of N-digit Palindrome numbers
  324. Sum of all the numbers in the Nth row of the given triangle
  325. Increasing permutation of first N natural numbers
  326. Find K such that |A - K| = |B - K|
  327. Maximum sum of minimums of pairs in an array
  328. Minimum number of moves to reach N starting from (1, 1)