Submission #3621494

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int main()
{
  int N;
  cin >> N;
  vector<int> a(N);
  for (int i = 0; i < N; i++)
    cin >> a[i];
  sort(a.begin(), a.end(), greater<int>());
  int ans = 0;
  for (int i = 0; i < N; i++)
  {
    if (i % 2)
      ans -= a[i];
    else
      ans += a[i];
  }
  cout << ans << endl;
  return 0;
}

Submission Info

Judge Result