代码

#include <stdio.h>
#include <ctype.h>
struct ios {
    inline char gc(){
        static const int IN_LEN=1<<18|1;
        static char buf[IN_LEN],*s,*t;
        return (s==t)&&(t=(s=buf)+fread(buf,1,IN_LEN,stdin)),s==t?-1:*s++;
    }

    inline ios & operator >> (int &x){
        static char ch,sgn; ch = gc(), sgn = 0;
        for(;!isdigit(ch);ch=gc()){if(ch==-1)return *this;sgn|=ch=='-';}
        for(x=0;isdigit(ch);ch=gc())x=x*10+(ch^'0');
        sgn&&(x=-x); return *this;
    }
} io;
int main(){
    register int n,a,b;
    io>>n;
    while(n--){
        io>>a>>b;
        printf("%d\n",a+b);    
    }
	return 0;
}

评测结果