@[秦可卿](/space/show?uid=88432) 新版页面自动开
或者也可以加个
//luogu-judger-enable-o2
或
```
#pragma GCC optimize(2)
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
```
这一大串
by aminoas @ 2019-04-19 20:54:57
@[QwQ自动机](/space/show?uid=143834) 发现大佬,当场膜拜
by wybybl @ 2019-04-19 20:58:01
@[123456789草原](/space/show?uid=138702) ~~我真的不是大佬啊~~
by aminoas @ 2019-04-19 21:00:10
@[QwQ自动机](/space/show?uid=143834) 加注释真的可以开吗QAQ
by Metheus @ 2019-04-19 21:29:15
@[秦可卿](/space/show?uid=88432) 好像珂以吧...
by aminoas @ 2019-04-19 21:30:42
@[QwQ自动机](/space/show?uid=143834) 突然感觉还不如点一下那个勾勾（滑稽）
by Metheus @ 2019-04-19 21:32:06
@[秦可卿](/space/show?uid=88432) 好像是... ~~（雾~~
by aminoas @ 2019-04-19 21:33:04
有的时候吸氧是必要的。
如果在省选上你的程序厌氧就糟糕了。
by watermoon @ 2019-04-20 09:17:58