常数过大戳这里

rt

namespace ka_chang
{
	#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")
}
using namespace ka_chang;

PB NB!