1. Pascal’s Triangle

2. Majority Element (⌊n/3⌋ times)

3. Three (3) Sum Problem

4. Four (4) Sum Problem

5. Largest Subarray with 0 Sum

6. Count number of subarrays with given XOR K

7. Merge Overlapping Subintervals

8. Merge two sorted arrays without extra space

9. Find the repeating and missing number

10. Count Inversions

11. Reverse Pairs

12. Maximum Product Subarray