Submission #4661535

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;

int main()
{
  int N; cin >> N;
  vector<int> d(N);
  for (int i = 0; i < N; ++i) {
    cin >> d[i];
  }

  sort(d.begin(), d.end());
  d.erase(unique(d.begin(), d.end()), d.end());

  cout << d.size();
}

Submission Info

Judge Result