2 - Pointer Algorithm All Models | Intuition and Problem Solving | Bharath Chandra 

Hello guys, cheers to another piece of learning. Today I talked why we use 2-Pointer Algorithm! Why do we need them when we have arrays? And I also discussed the ideation behind using them in coding problems.
2 sum problem code in all languages - www.geeksforgeeks.org/check-i...
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Subarray Sum equals k code in all languages -
www.geeksforgeeks.org/number-...
Merge Sorted arrays code in all languages -
www.geeksforgeeks.org/merge-t...
This video is a part of Neetcode 150 playlist on my channel
Link to Neetcode 150 Playlist - • DSA Neetcode - 150
Link to Neetcode 150 - neetcode.io/practice
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00:00 - Introduction
00:50 - Why not Arrays?
01:20 - 2 Pointer Algorithm Model 1
17:57 - 2 Pointer Algorithm Model 2
33:24 - 2 Pointer Algorithm Model 3
41:10 - How to indentify 2 Pointer Problems