题解 | #明明的随机数#

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main() {
    int n;
    cin >> n;
    vector<int> array(n);
    for (int i = 0; i < n; i++) {
        cin >> array[i];
    }
    sort(array.begin(), array.end());
    for (int i = 0; i < n; i++) {
        if (i == 0 || array[i] != array[i - 1]) {
            cout << array[i] << endl;
        }
    }
    return 0;
}