Greater Integers

#include <bits/stdc++.h>

using namespace std;

bool cmp(string a, string b) {
    if (a.size() != b.size()) return a.size() < b.size();
    return a < b;
}

int main(void) {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int ntest;
    cin >> ntest;
    while (ntest--) {
        string n;
        cin >> n;
        bool found = false;
        for (int len = 0; !found; ++len) {
            for (char c = '1'; c <= '9'; ++c) {
                string a(len, c);
                if (cmp(n, a)) {
                    cout << a << endl;
                    found = true;
                    break;
                }
            }
        }
    }
    return 0;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED