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Time Limit: 2 sec / Memory Limit: 1024 MB Score : 700700 points Problem Statement You are given an integer NN. Build an undirected graph with NN verti 阅读全文
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Time Limit: 2 sec / Memory Limit: 1024 MB Score : 400400 points Problem Statement Snuke has an empty sequence aa. He will perform NN operations on thi 阅读全文
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Problem Statement Tak has N cards. On the i-th (1≤i≤N) card is written an integer xi. He is selecting one or more cards from these N cards, so that th 阅读全文
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You are given an integer nn from 11 to 10181018 without leading zeroes. In one move you can swap any two adjacent digits in the given number in such a 阅读全文