It's been a while since I learn for any interview. Hence, I need to strengthen my knowledge about data structure and algorithm (DSA). This week I learned about Two Pointers.

Two Pointers

The two pointers problem is a problem that can be solved using to indices that can be start from different ends of an array (left-right or start-end) or those can be started together with different pace/speed.

Things that I identify if a problem can be solved using two pointers approach is:

1. It's a one-dimensional array
2. The array is sorted

I plan to continue learning and trying to understand more problems using this approach from LeetCode.