Submission #1990226

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;

int main(){
	int n, x;
	set<int> him;
	cin >> n;
	for (int i = 0; i < n; i++){
		cin >> x;
		him.insert(x);
	}
	cout << (int) him.size() << "\n";
}

Submission Info

Judge Result