Greater Integers

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
const ll NN = 2e5 + 5;
const ll mo = 1e9 + 7;
ll f[NN], t;
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> t;
    while(t--)
    {
        string s;
        cin >> s;
        ll sz = s.length();
        string has = "";
        for(ll i = '1'; i <= '9'; i++)
        {
            string tmp;
            for(ll j = 1; j <= sz; j++)
                tmp += char(i);
            if(tmp > s)
            {
                has = tmp;
                break;
            }
        }
        if(has == "")
        {
            for(ll i = 1; i <= sz + 1; i++)
                has += '1';
        }
        cout << has << "\n";
    }
 
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED