代码

#include <stdio.h>
#include<cctype>
int qread()
{
    int ans=0;char c=getchar();int b=1;
    while(!isdigit(c)) {if(c=='-') b=-1;c=getchar();}
    while(isdigit(c)) {if(c=='-') b=-1;ans=ans*10+c-'0',c=getchar();}
    return ans*b;
}
void write(int num)
{
    if(num<0) putchar('-'),write(-num);
    else
    {
        if(num>=10) write(num/10);
        putchar('0'+num%10);
    }
}
int main() {
	int n=qread();
	while(n--)
    {
        int a=qread(),b=qread();
        write(a+b);putchar('\n');
    }
}

评测结果