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Prefix sum (aka cumulative sum) related problems
By AbdulazizMohamed, history, 5 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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5 years ago, hide # |
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5 years ago, hide # |
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Here are some : - https://codeforces.me/contest/961/problem/B

2-d Prefix Sums :

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3 years ago, hide # |
 
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try edu

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