17夏季练习
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Comsmelo
他跑啊跑，为的，是追上那个曾经被寄予厚望的自己
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Delete Them
原题地址：http://codeforces.com/problemset/problem/730/H Delete ThemPolycarp is a beginner programmer. He is studying how to use a command line.Polycarp faced the following problem. There are n files in a原创 2017-07-19 01:00:46 · 500 阅读 · 0 评论 -
Gym - 100971G Repair
原题地址：http://codeforces.com/gym/100971/problem/G原创 2017-07-19 01:19:26 · 520 阅读 · 0 评论