Watch tutorials and explanations by expert teachers that walk through solving this problem.
NeetCode
NeetCodeIO
Hua Hua
Algorithms Made Easy
jayati tiwari
Coding Decoded
Naresh Gupta
Timothy H Chang
code Explainer
Solve more problems to master this pattern
![LeetCode 304. - Range Sum Query 2D - Immutable [Algorithm + Code Explained ]](https://i.ytimg.com/vi/7mL8KJ4Pi70/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLDEql8bvAr486l_wQC7JYHqwFvF8A)
