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PROFESSOR_AIH's blog

By PROFESSOR_AIH, history, 2 months ago, In English

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

Thanks in advance.

 
 
 
 
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Some easy problems from easier to harder:

1697B - Promo

1709B - Also Try Minecraft

1615B - And It's Non-Zero.