@[木木！](/space/show?uid=49458) 我又来麻烦您dalao了qwq
by 行者_Walker @ 2019-10-08 18:29:19
你需要register
by stone_juice石汁 @ 2019-10-08 18:34:25
或者双前缀和写$O(n^2)$得了
by stone_juice石汁 @ 2019-10-08 18:36:20
@[行者_Walker](/space/show?uid=109863)
你把快读去掉，改成cin，再加上这句话：
```
ios::sync_with_stdio(false);
cin.tie(0);
```
by JasonZRY @ 2019-10-08 18:36:41
@[行者_Walker](/space/show?uid=109863) 然后就A了
by JasonZRY @ 2019-10-08 18:36:59
@[stone_juice石汁](/space/show?uid=133426)
似乎不用那么麻烦
by JasonZRY @ 2019-10-08 18:37:15
貌似也行。感觉像是快读负优化了，还没scanf跑得快
by stone_juice石汁 @ 2019-10-08 18:38:36
@[JasonZRY](/space/show?uid=242967) 嗯，我试试
by 行者_Walker @ 2019-10-08 18:38:59
看来我要搞事情了
```cpp
#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("-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("-falign-functions")
#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("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
```
by 行者_Walker @ 2019-10-08 18:39:53
把我憋急了
by 行者_Walker @ 2019-10-08 18:40:13