Aizu - 1379 Parallel Lines

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Aizu - 1379 Parallel Lines

平行直线题意:给出一些点,这些点两两相连成一条直线,问最多能连成多少条直线. 思路:暴力出奇迹!!记得当时比赛做这道题的时候一直依赖于板子,结果却限制了自己的思路,这得改.dfs直接暴力,但是需要将已经走过的点标记一下,用一个循环跳过已经标记的点减少dfs次数,不然得不出正确的结果,因为会出现如下的连线结果(左图),而正确的连线方式应该如右图. 代码: #include <iostream> #include <cstdio> #include <algorithm&g…

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