题解 | #明明的随机数#

#include <iostream>
#include <algorithm>
using namespace std;

int main() {
    int n, m, c = 0;
    cin >> n;
    int a[n];
    for (int i = 0; i < n; i++)
        cin >> a[i];
    sort(a, a + n);
    for (int i = 0; i < n; i++) {
        if (a[i + 1] == a[i]) {
            a[i] = 501;
            c++;
        }
    }
    sort(a, a + n);
    m = n - c;
    for (int i = 0; i < m; i++)
        cout << a[i] << endl;
}