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#1892: GhassanHasan

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#1948: abv3Rpkg

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#1948: CarroT1212

Accepted: : 92
查询一个数在序列里出现的位置,先分块!二分找到所在的块,再在块内二分!这样就做到了 O(sqrt n log n)!

#1948: chenchi

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#1948: cry

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subscribe to omeganot

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#1973: strlen_s_

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