代码

#include<bits/stdc++.h>
using namespace std;

char getch()
{
	static char buf[1<<23],*p1=buf,*p2=buf;
	return p1==p2&&(p2=(p1=buf)+fread(buf,1,1<<23,stdin),p1==p2)?EOF:*p1++;
}

void read(int &x)
{
	x=0;
	char c=getch(),last=' ';
	while(c<'0'||c>'9')
	{
		last=c;
		c=getch();
	}
	while(c>='0'&&c<='9')
	{
		x=(x<<1)+(x<<3)+(c-'0');
		c=getch();
	}
	if(last=='-') x=~x+1;
}

int a,b;

int main()
{
	read(a);read(b);
	printf("%d\n",a+b);
	return 0;
}

评测结果