代码

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

const int SIZE = 1<<14; // 16 KB
char getc()
{
    static char buf[SIZE],*begin=buf,*end=buf;
    if(begin==end)
    {
        begin = buf;
        end = buf+fread(buf,1,SIZE,stdin);
    }
    return *begin++;
}

int read()
{
    int ret=0,sgn=0,ch=getc();
    while(!isdigit(ch)) sgn != ch == '-', ch=getc();
    while(isdigit(ch)) ret = ret*10 + ch -'0',ch=getc();
    return sgn ? -ret : ret;
}

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

评测结果