What is prefix sum array? | Competitive Programming | Python tutorial | coding basics

Published: 26 April 2022
on channel: taptap

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What is prefix sum array? | Competitive Programming | Python tutorial | coding basics

We can easily process sum queries on a static array by constructing a prefix
sum array. Each value in the prefix sum array equals the sum of values in the
original array up to that position, i.e., the value at position k is sumq(0,k). The prefix sum array can be constructed in O(n) time.

Python is an interpreted high-level general-purpose programming language.
Python is the most in-demand programming language used for AI(artificial intelligence).

Competitive programming is a mind sport usually held over the Internet or a local network, involving participants trying to program according to provided specifications.

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