Prefix Sum Algorithm | Prefix Sum Array | Difference Array | Range Sum QueryO(1) | EP2

Published: 01 April 2019
on channel: JAVAAID - Coding Interview Preparation

149,891

Prefix sum algorithm is mainly used for range query and the complexity of prefix sum algorithm is O(n).
This video explains the working of prefix sum algorithm.
This is the second part of the video and please watch the first part (why you must learn prefix sum algorithm) before watching this.

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