Data Structures & Algorithms

Arrays, Tree, Linked List, Heap, Dynamic Programming, Recursion, Backtracking etc.
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Arrays 22 Backtracking 2 Binary Tree 19 Dynamic Programming 28 Graph 11 Greedy Algorithm 3 Linked List 8 Matrix 3 Recursion 11 Sorting Algorithms 1 Stack & Queue 6 Strings 11
Program to print Intersection of two sorted arrays

Posted in Arrays on Mar 31, 2024

Reverse words in a given string

Posted in Strings on Mar 31, 2024

Check whether the given string is a palindrome

Posted in Strings on Mar 31, 2024

Print all permutations of a given string

Posted in Strings on Mar 31, 2024

Print all subsequences of a string

Posted in Strings on Mar 31, 2024

Count the number of inversions in an array - in O(n log n) time

Posted in Arrays on Mar 31, 2024

Rain water trapping problem - O(n) time & O(n) space

Posted in Arrays on Mar 31, 2024

Find a triplet in an array that sums to a given number

Posted in Arrays on Mar 31, 2024

Word Break Problem (Using HashMap and DP)

Posted in Arrays on Mar 31, 2024

Longest Common Prefix in an Array of Strings

Posted in Strings on Mar 31, 2024