@[SSH_oj](/space/show?uid=41262)
cin和cout耗时比scanf和printf多
by UKE自动稽 @ 2018-07-01 09:41:10
因为没开优化的cin比scanf慢
by LCuter @ 2018-07-01 09:41:16
cin有一个读入优化
[点击](https://blog.csdn.net/qq_25978793/article/details/48547447)
by n0000000000o @ 2018-07-01 10:00:45
以后到一堆难度的题目都卡这个……不仅卡cin/cout,还卡STL...
还是建议用scanf/printf的好,比如你可以写`scanf("%d+%d", &a, &b);`来读入整数……
by Tsukimaru @ 2018-07-01 10:05:06
@[SSH_oj](/space/show?uid=41262) 读优大法好
by Victory_Defeat @ 2018-07-01 10:05:23
@[SSH_oj](/space/show?uid=41262) 我就这么干过......
by henrytb @ 2018-07-01 10:06:42
cin不好用
by 冈崎梦美 @ 2018-07-01 10:10:09
正常吧,很多题目都卡这个,就算不是特意去卡数据大一点1e6,1e7的话cin,cout显然就会TLE了
by henry_y @ 2018-07-01 10:26:32
~~作死~~
by 2016gdgzoi471 @ 2018-07-01 10:32:56
Pascal的read write了解一下
~~滑稽~~
by dblark @ 2018-07-01 10:44:34