@[cc123321](/space/show?uid=48421)
```cpp
#pragma GCC optimize("O3")
#pragma GCC optimize("O4")
#pragma GCC optimize("O5")
#pragma GCC optimize("O6")
#pragma GCC optimize("O2")
#pragma GCC optimize("O7")
#pragma GCC optimize("O8")
#pragma GCC optimize("O9")
#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("-fhoist-adjacent-loads")
#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")
```
by Gypsophila @ 2018-08-17 21:44:42
@[ACの666](/space/show?uid=54745) 66666
by happyZYM @ 2018-08-17 21:52:00
@[ACの666](/space/show?uid=54745) 66666
by 霜月はるか @ 2018-08-17 21:58:13
好吧，是在下输了QAQ
by cc123321 @ 2018-08-18 06:58:28
@[ACの666](/space/show?uid=54745)
有那个`4 O5 O6 O7 O8 O9`QwQ
by Delta_Rain @ 2018-08-20 07:55:33
没开O2还用的cin和cout，完全不虚
by EMT__Mashiro @ 2018-11-30 15:41:04
最慢的都才2630ms
by EMT__Mashiro @ 2018-11-30 15:41:32
@[EMT__Mashiro](/space/show?uid=89875) 不是，一共输入20000个数用cin当然不慢了，他又不是说输入卡不过去……
by Ousmane_Dembele @ 2018-12-15 12:45:58
@[Kyle_Lowry](/space/show?uid=48142) 我只是想吐槽他常数大而已
by EMT__Mashiro @ 2018-12-15 14:50:44
@[AcFirmament](/space/show?uid=54745) 66666
by 王镜廷 @ 2019-07-22 13:00:06