代码

#include <cstdio>
#include <cctype>
inline int read()
{
	int ans=0,f=0;
	char c=getchar();
	while (c<'0'||c>'9')
	{
		f=(c=='-');
		c=getchar();
	}
	while (c>='0'&&c<='9') 
	{
		ans=(ans<<3)+(ans<<1)+(c^48);
		c=getchar();
	}
	return f? -ans:ans;
}
void write(int x)
{
	if (x<0) putchar('-'),x=-x;
	if (x<10) return (void)putchar(x^48);
	int t=x/10;
	write(t);putchar((x-(t<<3)-(t<<1))^48);
}
int main()
{
	for (int i=read();i;--i) write(read()+read()),putchar('\n');
	return 0;
}

评测结果