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题目 链接:https://ac.nowcoder.com/acm/contest/10272/E 来源:牛客网 题目描述 A robot is standing on an infinite 2-dimensional plane. Programmed with a string \(s_1s_ 阅读全文
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题目 题目描述 Curling is a sport in which players slide stones on a sheet of ice toward a target area. The team with the nearest stone to the center of the 阅读全文
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题目 Kotori is very good at math (really?) and she loves playing with permutations and primes. One day, she thinks of a special kind of permutation name 阅读全文