代码

#include<stdio.h>
int read(){
    int x=0;
    bool f=1;
    char c=getchar();
    while(c<33)c=getchar();
    if(c=='-')f=0,c=getchar();
    while(c>47)x=x*10+c-48,c=getchar();
    return f?x:-x;
}
int b[12],B;
void write(int x){
    
    B=0;
    if(!x){
        putchar('0'),putchar('\n');
        return;
    }
    if(x<0){
        putchar('-');
        x=-x;
    }
    while(x)b[++B]=x%10,x/=10;
    while(B)putchar(48+b[B--]);
    putchar('\n');
}
int main(){
    int n;
    n=read();
    for(int i=0;i<n;++i){
        int x,y;
        x=read(),y=read();
        write(x+y);
    }
    return 0;
}

评测结果