Matrix

Array:

Question Practice Search an Element in an array Solve Find minimum and maximum element in an array Solve Wave Array Solve Transpose of Matrix Solve Rotate by 90 degrees Solve Next Greater Element Solve Maximum of all subarrays of size k Solve Missing number in array Solve Bitonic Point Solve Count Palindrome Sub-Strings of a String Solve...

String:

Question Practice Anagram Solve Reverse words in a given string Solve Longest Common Prefix Solve Isomorphic Strings Solve Check if string is rotated by two places Solve Divisible by 7 Solve Integer to Roman Solve...

Stack:

Question Practice Parenthesis Checker Solve Next Greater Element Solve Nearest Smaller Element Solve Reverse a String using Stack Solve Reverse an array using Stack Solve Delete Middle element from stackSolve Solve Reverse individual words Solve...

Queue:

Question Practice Reverse First k Elements of Queue Solve Implement a Queue using an Array Solve Print all elements of a queue in a new line Solve Level with maximum number of nodes Solve...

Linked List:

Question Practice Node at a given index in linked list Solve Merge two sorted linked lists Solve Delete a Node in Single Linked List Solve Insert in Sorted way in a Sorted DLL Solve Find n/k th node in Linked list Solve Nth node from end of linked list Solve Detect Loop in linked list Solve Delete middle of linked list Solve...

Matrix:

Question Practice Rotate Matrix Elements Solve Find maximum element of each row in a matrix Solve Print matrix in snake pattern Solve Turn an image by 90-degree Solve...

Sorting:

Question Practice Find the sum of all values lesser than the element of the Array Solve Merge Two Sorted Arrays Solve Sort an Array of Strings in Lexicographical order Solve Finding Kth largest number in given array of large numbers Solve Sort a string without altering the position of vowels Solve Insertion Sort Solve Heap Sort Solve...

Greedy:

Question Practice Police and Thieves Solve Minimum Number of Platforms Required for a Railway/Bus Station Solve Connect n ropes with minimum cost Solve Huffman Encoding Solve Fractional Knapsack Solve...

Recursion:

Question Practice Print 1 to n without using loops Solve Mean of Array using Recursion Solve Print reverse of a string using recursion Solve Sum of digit of a number using recursion Solve Program for factorial of a number Solve Tower Of Hanoi Solve Print first n Fibonacci Numbers Solve...

Dynamic Programming:

Question Practice Maximum Product Cutting Solve Minimum number of deletions and insertions to transform one string into another Solve 0-1 Knapsack Problem Solve Subset Sum Problem Solve Longest Increasing Subsequence Solve Longest Common Subsequence Solve Longest Common Substring Solve Coin Change Solve Edit Distance Solve Nth catalan number Solve Longest Path In Matrix Solve...

Tree:

Question Practice Inorder Traversal Solve Postorder Traversal Solve Preorder Traversal Solve Insert a node in a BST Solve Height of Binary Tree Solve Check for BST Solve Kth Largest Element in a BST Solve...

Graph:

Question Practice DFS of Graph Solve BFS of graph Solve Topological sort Solve Number of Provinces Solve Implementing Dijkstra Algorithm Solve Strongly Connected Components (Kosaraju’s Algo) Solve Distance from the Source (Bellman-Ford Algorithm) Solve...