Replace last digit of n using C++

#include <bits/stdc++.h>

using namespace std;

int main() {
    int n;
    cin >> n;
    for (int d = (n < 10 ? 1 : 0); d < 10; d++) {
        int new_n = n - n % 10 + d;
        cout << new_n << '\n';
    }
    return 0;
}