还算简单。

#include <bits/stdc++.h>
using namespace std;
int n,a[105];
int main()
{
    cin >> n;
    for(int i=1;i<=n;i++)
    {
        cin >> a[i];
    }
    sort (a+1,a+n+1);
    for(int i=n;i>=1;i--)
    {
        cout << a[i] << " ";
        if(i>n-2)
        {
            cout << 500 << endl;
        }
        else if(i>n-6)
        {
            cout << 300 << endl;
        }
        else if(i>n-10)
        {
            cout << 100 << endl;
        }
        else
        {
            cout << 0 << endl;
        }
    }
    return 0;
}