Submission #1679394

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Source Code Expand

#include <bits/stdc++.h> 
#define ll long long
#define pb push_back
#define mp make_pair
const ll inf = 1e9;
const ll zero = 0;
using namespace std;
int main(){
	ll n;
	cin >> n;
	ll a[n];
	ll v[100001]={};
	for (int i = 0; i < n;i++){
		cin >> a[i];
		v[a[i]]++;
	}
	ll ans(0);
	for (int i = 1;i<=100000;i++){
		if ( v[i]==0 )
			continue;
		ans++;
	}
	cout << ans << endl;
}

Submission Info

Judge Result