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一个奇葩的超时原因……

Posted by lcsky at 2014-05-21 03:04:38 on Problem 3469
Dinic当前弧优化,本地跑已经比未优化的时候快了N倍,比EK快了N倍,提交POJ了N次,都TM的超时……

无比抓狂的时候,看到了这样一篇高质量的博客:http://www.cnblogs.com/zhsl/archive/2012/12/03/2800092.html

发现代码相差很小,在本地跑比我的还慢些,当时就崩溃了……

逐一替换,发现竟是这破事儿掉的链子:
cin >> a >> b >> w;
改成
scanf("%d%d%d",&a,&b,&w);
就3000ms过了……

一整天时间啊,POJ你丫的要不要这样搞!?!

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