c++快速读入

#include <type_traits>
#include<bits/stdc++.h>
using namespace std;
inline read(const char *category,int _else=0){
	if(*category==*((const char*)"char")) return getchar();
	if(*category==*((const char*)"int")){
		int x=0;
		char c=getchar();
		while('0'<=c&&c<='9')
			x=x*_else+('0'<=c&&c<='9'?c-'0':c-'A'+1);
		return x;
	}
	if(*category==*((const char*)"bool")) return read("int",16)!=0;
	if(*category==*((const char*)"double")){
		double x=read("int",_else);
		int y=0,mine=0;
		char c=getchar();
		while('0'<=c&&c<='9')
			y=y*_else+('0'<=y&&y<='9'?c-'0':c-'A'+1),mine++;
		x+=y*1.0/mine/_else;
	}
}

为'正解'会 TLE 的代码贴上 AC 之符