## More Problems

- Social Network Problem
- Sort the two dimensional (2D) array - In-place
- ZigZag OR Diagonal traversal in 2d array/Matrix using queue
- Longest substring with at most K unique characters
- Lexicographically next permutation With One swap
- Introduction to Minimum Spanning Tree (MST)
- Maximum Bipartite Matching Problem
- Lexicographically previous permutation With One swap
- Longest substring with at most two unique characters
- Max Flow Problem – Introduction

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