Submission #1951081

---

Source Code Expand

#include<bits/stdc++.h>
using namespace std;
set <int> a;
int main(){
    int i,n;
    cin>>n;
    int x;
    for(i=1;i<=n;i++){
    	cin>>x;
    	a.insert(x);
	}
	cout<<a.size()<<endl;
	return 0;
}

Submission Info

Judge Result