2799: 奥运奖牌计数

解题思路:

注意事项:

参考代码:

#include <iostream>

using namespace std;

int main()

{

    int n,sum1=0,sum2=0,sum3=0;

    cin>>n;

    for(int i=1;i<=n;i++)

    {

       int a,b,c;

       cin>>a>>b>>c;

       sum1+=a;

       sum2+=b;

       sum3+=c;

    }

    cout <<sum1<<" "<<sum2<<" "<<sum3<<" "<<sum1+sum2+sum3<< endl;

    return 0;

}