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先了解一下KM算法： 在满天飞的KM讲解中，感觉这篇博客讲的是真的好！！！ 转自https://www.cnblogs.com/logosG/p/logos.html 如果每个员工做每件工作的效率各不相同，我们如何得到一个最优匹配使得整个公司的工作效率最大呢？ 这种问题被称为带权二分图的最优匹配问题 阅读全文
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After this year’s college-entrance exam, the teacher did a survey in his class on students’ score. There are n students in the class. The students did 阅读全文
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RPG girls今天和大家一起去游乐场玩，终于可以坐上梦寐以求的过山车了。可是，过山车的每一排只有两个座位，而且还有条不成文的规矩，就是每个女生必须找个个男生做partner和她同坐。但是，每个女孩都有各自的想法，举个例子把，Rabbit只愿意和XHD或PQK做partner，Grass只愿意和l 阅读全文
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A password locker with N digits, each digit can be rotated to 0-9 circularly. You can rotate 1-3 consecutive digits up or down in one step. For exampl 阅读全文
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Alice and Bob are the topmost hunters in the forest, so no preys can escape from them. However, they both think that its hunting skill is better than 阅读全文
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mmm is learning division, she's so proud of herself that she can figure out the sum of all the divisors of numbers no larger than 100 within one day! 阅读全文