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posted @ 2022-03-10 20:46
VxiaohuanV
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题目描述 In a far away kingdom lives a very greedy king. To defend his land, he built nn guard towers. Apart from the towers the kingdom has two armies, e 阅读全文
posted @ 2022-03-10 19:43
VxiaohuanV
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On a strip of land of length nn there are kk air conditioners: the ii -th air conditioner is placed in cell a_ia i ( 1 \le a_i \le n1≤a i ≤n ). Tw 阅读全文
posted @ 2022-03-10 18:05
VxiaohuanV
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题目： swjtu—春季集训第三场 - Virtual Judge (vjudge.net) You are given a directed graph GG which can contain loops (edges from a vertex to itself). Multi-edges 阅读全文
posted @ 2022-03-10 16:46
VxiaohuanV
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