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DescriptionConsider a town where all the streets are one-way and each street leads from one intersection to another. It is also k... 阅读全文
posted @ 2018-12-22 11:31
银叶草
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Description地鼠家族面临着一个新的威胁——猎食者。 地鼠家族一共有N个地鼠和M个鼠洞,每个都位于不同的(x, y)坐标中。假如有地鼠在发觉危险以后s秒内都没有回到鼠洞里的话,就可能成为老鹰的食物。当然了,一个鼠洞只能拯救一只地鼠的命运,所有地鼠都... 阅读全文
posted @ 2018-12-22 11:01
银叶草
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DescriptionWe are given a chess-board of size n*n, from which some fields have been removed. The task is to determine the maximum... 阅读全文
posted @ 2018-12-22 10:19
银叶草
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