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