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Pikachu had an array with him. He wrote down all the non-empty subsequences of the array on paper. Note that an array of size n has 2n - 1 non-empty s 阅读全文
posted @ 2018-04-11 21:32
天之道，利而不害
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You are given two arrays A and B, each of size n. The error, E, between these two arrays is defined . You have to perform exactly k1 operations on arr 阅读全文
posted @ 2018-04-11 20:07
天之道，利而不害
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A. Equator Polycarp has created his own training plan to prepare for the programming contests. He will train for nn days, all days are numbered from 1 阅读全文
posted @ 2018-04-11 13:14
天之道，利而不害
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