02 | Minimum Cost to cut a board into squares A board of length $M$ and width $N$ is given. The task is to break this board into $M * N$ squares such that cost of breaking is minimum. The cutting ...

# STL Cheat Sheet

pair utility container Used to store two data object in a single container #include <iostream> using namespace std int main(){ pair<int, int> p1; pair<int, int> p2(30...

# Binary Trees | Striver’s A2Z DSA Course/Sheet

Step 13.1 Inorder Traversal Given the root of a binary tree, return the inorder traversal of its nodes’ values. Recursive Inorder traversal is Left -> Root -> Right. So, we will call...

# Recursion | Striver’s SDE Sheet

Problem 1: Subset Sums Given a list arr of N integers, print sums of all subsets in it. Note: Return all the element is increasing order. Geeks For Geeks Brute class Solution { public: ...

# Greedy | Striver’s SDE Sheet

Problem 1: N Meetings in a room Geeks For Geeks class Solution { public: int maxMeetings(int start[], int end[], int n) { pair<int, int> a[n + 1]; for(...

# Linked List & Array | Striver’s SDE Sheet

Problem 1: Reverse a LinkedList Leetcode class Solution { public: ListNode* reverseList(ListNode* next) { ListNode* prev = NULL; while(next != NULL) { ...

# Linked List II | Striver’s SDE Sheet

Problem 1: Reverse a LinkedList Leetcode class Solution { public: ListNode* reverseList(ListNode* next) { ListNode* prev = NULL; while(next != NULL) { ...

# Linked List I | Striver’s SDE Sheet

Problem 1: Reverse a LinkedList Leetcode class Solution { public: ListNode* reverseList(ListNode* next) { ListNode* prev = NULL; while(next != NULL) { ...

# Array IV | Striver’s SDE Sheet

Problem 1 Leetcode Brute This question has been updated on leetcode with newer constraints : -2^31 <= matrix[i][j] <= 2^31 - 1. Hence, we will have to use some extra space. class Solu...

# Array III | Striver’s SDE Sheet

Problem 1 Leetcode Brute This question has been updated on leetcode with newer constraints : -2^31 <= matrix[i][j] <= 2^31 - 1. Hence, we will have to use some extra space. class Solu...

# Trie | Striver’s SDE Sheet

Problem 1: Reverse Words in a String You are given a string of length N. You need to reverse the string word by word. There can be multiple spaces between two words and there can be leading or tra...

# Dynamic Programming II | Striver’s SDE Sheet

Problem 1: Reverse Words in a String You are given a string of length N. You need to reverse the string word by word. There can be multiple spaces between two words and there can be leading or tra...

# Dynamic Programming I | Striver’s SDE Sheet

Problem 1: Reverse Words in a String You are given a string of length N. You need to reverse the string word by word. There can be multiple spaces between two words and there can be leading or tra...

# Graph II | Striver’s SDE Sheet

# Graph I | Striver’s SDE Sheet

# Binary Tree IV | Striver’s SDE Sheet

# Binary Search Tree II | Striver’s SDE Sheet

Problem 1: Floor in a BST You are given a BST (Binary search tree) with’ N’ number of nodes and a value ‘X’. Your task is to find the greatest value node of the BST which is smaller than or equal ...

# Binary Search Tree I | Striver’s SDE Sheet

# Array II | Striver’s SDE Sheet

Problem 1 Leetcode Brute This question has been updated on leetcode with newer constraints : -2^31 <= matrix[i][j] <= 2^31 - 1. Hence, we will have to use some extra space. class Solu...