Range Sum Query 2D - Immutable | Leetcode 304 | Live coding session

Here is the solution to "Range Sum Query 2D - Immutable" leetcode question. Hope you have a great time going through it.

1) 0:00 Explaining the problem out loud
2) 1:10 Algorithm walkthrough
3) 3:40 Test case walk through
3) 13: 30 Coding it up
4) 14:00 Time Complexity

For discussion/feedback

PS : Please increase the speed to 1.25X

[aakashparmar]

Crystal clear explanation.!! Formula derivation part was really interesting 🔥🔥🔥

[shubhisinghbhadauria]

This is the best explanation that I have found

[etherealscaped]

Never stop making leetcode videos!!!! KEEP THE GOOD JOB UP!

[UnseenVivekC]

Yeah, the last explanation of showing it in matrix made it more clear. Thanks

[mohammedsaqib]

I have understood your explanation but how to create such formulas when we look at the problem 😥?

[Noob_Engineer]

mai like roz karta hu bas comment nahi karta ab 1k ho jayenge