This repository contains important DSA questions for Interviews
1. N-Queens problem Problem link
2. Check for subsequence Problem link
3. Greater on right side Problem link
This become the base for Raining water Trapping problem
4. Next Greater Element problem link
1.Next Greater Element solution
5. Rain Water Trapping. problem Link
1.Rain water Trapping Solution
6. K-th largest element problem Link
1.k-th largest element Solution
7. K largest elements problem Link
8. Check if a binary tree is BST or not problem Link
1.Check if a binary tree is BST or not Solution