BackTracking

Problem 1: N queen problem using backtracking

Prefix Sum

Problem 1: Number of continuous sub array whose sum equals to k

Problem 2: Find Pivot Index

Sliding window technique

Problem: Set 1: Easy

Problem: Set 2: Medium

Greedy Algorithm Problems

Problem: Set 1: Easy

Problem: Set 2: The celebrity problem

Problem: Set 3: 0-1 Knapsack Problem