代码

int read()
{
    int out=0,fh=1;
    char cc=getchar();
    if (cc=='-') fh=-1;
    while (cc>'9'||cc<'0') cc=getchar();
    while (cc>='0'&&cc<='9') {out=out*10+cc-'0';cc=getchar();}
    return out*fh;
}
void write(long long x)  
{  
    if (x==0){
        putchar('0');
        return;
    }
    long long num = 0; char c[15];
    while(x) c[++num] = (x%10)+48, x /= 10;
    while(num) putchar(c[num--]);
    putchar(' '); 
}
int main()
{
    write(read()+read());
    return 0;
}

评测结果