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DescriptionYou haveNintegers,A1,A2, ... ,AN. You need to deal with two kinds of operations. One type of operation is to add some given number to each ... 阅读全文
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http://poj.org/problem?id=3177题目大意:给你几个点和几条边 求你能加几条边 就可以让每一个点到达任意点都有两种方法。DescriptionIn order to get from one of the F (1 2 and 1 –> 6 –> 5 –> 21 – 4... 阅读全文
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https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=5&page=show_problem&problem=251NetworkA Telephone Line Company (TLC) is... 阅读全文
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A rook is a piece used in the game of chess which is played on a board of square grids. A rook can only move vertically or horizontally from its curre... 阅读全文