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https://vjudge.net/contest/67836#problem/F "The item is locked in a Klein safe behind a painting in the second-floor library. Klein safes are extremel    阅读全文
posted @ 2018-08-24 12:24
_Zlrrr
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https://vjudge.net/contest/67836#problem/E A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separa    阅读全文
posted @ 2018-08-24 12:15
_Zlrrr
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https://vjudge.net/contest/67836#problem/C The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the     阅读全文
posted @ 2018-08-24 11:14
_Zlrrr
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http://acm.hdu.edu.cn/showproblem.php?pid=2544 Problem Description 在每年的校赛里,所有进入决赛的同学都会获得一件很漂亮的t-shirt。但是每当我们的工作人员把上百件的衣服从商店运回到赛场的时候,却是非常累的!所以现在他们想要寻找最    阅读全文
posted @ 2018-08-24 10:23
_Zlrrr
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https://pintia.cn/problem-sets/994805342720868352/problems/994805348915855360 The "eight queens puzzle" is the problem of placing eight chess queens o    阅读全文
posted @ 2018-08-24 10:16
_Zlrrr
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