Submission #2868836

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>

using namespace std;

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    int n;
    cin >> n;
    int a[n];
    int s = 0;
    for (int i = 0; i < n; ++i) cin >> a[i];
    sort(a, a+n, greater<int>());
    for(int i = 0; i < n; ++i) 
    {
        if(i & 1) s -= a[i];
        else s += a[i];
    }
    cout << s << endl;

    return 0;
}

Submission Info

Judge Result