307. Range Sum Query - Mutable - Day 31/31 Leetcode July Challenge

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Larry solves and analyzes this Leetcode problem as both an interviewer and an interviewee. This is a live recording of a real engineer solving a problem live - no cuts or edits!

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Hi Larry, I tried very basic approch in this question that I am initialing array, sum of whole array and then in update making change in array on that index and also changing sum according to new value and in getSum, just minus sum of array (0, left) + array (right+1, Len array) and it was 98 % faster in python submission and memory was around 80% better, can you explain why??

UmeshMalik
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