Submission #5028282

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Source Code Expand

#include <iostream>
#include <string>
#include <cstring>
#include <cmath>
#include <cstdio>
#include <algorithm>
using namespace std;
#define ll long long
int main (){
    int n;
    cin >> n;
    int a[114514];
    bool b[114514] = {false};
    for (int i = 0; i < n; i++){
        cin >> a[i];
        b[a[i]] = true;
    }
    int count = 0;
    for (int i = 0; i < 114514; i++){
        if (b[i] == true) count++;
    }
    cout << count << endl;
    return 0;
}

Submission Info

Judge Result