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Problem G Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description S number is the number which the sum of every digit is a prime 阅读全文
posted @ 2016-07-14 20:29
Shadowdsp
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http://codeforces.com/contest/691/problem/D D. Swaps in Permutation D. Swaps in Permutation You are given a permutation of the numbers 1, 2, ..., n an 阅读全文
posted @ 2016-07-14 09:56
Shadowdsp
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