AbdulazizMohamed's blog

Prefix sum (aka cumulative sum) related problems
By AbdulazizMohamed, history, 4 years ago, In English

Please give some online judge problems in which prefix sum( also known as cumulative sum) technique is useful. and freuqancy array

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4 years ago, # |
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    4 years ago, # ^ |
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    can you tell me how to approach RANGESUM using prefix array. We're adding a new element every time here, we'll have to calculate prefix sum every time.

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4 years ago, # |
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Here are some : - https://codeforces.net/contest/961/problem/B

2-d Prefix Sums :

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18 months ago, # |
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try edu

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