Greater Integers

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <climits>
#include <cstring>

using namespace std;

using ll = long long;
using ull = unsigned long long;
using vi = vector<int>;
using ii = pair<int,int>;
using vii = vector<pair<int,int>>;
using vb = vector<bool>;
template<typename T>
using Graph = vector<vector<T>>;

void solve() 
{
	ll n; cin >> n;
	ll mn = LONG_MAX;
	for(int i = 1; i <= 9; ++i)
	{
		ll tn = 0;
		while(tn <= n)
		{
			tn = tn * 10LL + i;
		}
		mn = min(mn, tn);
	}
	cout << mn << '\n';
}

int main () 
{
#ifdef LOCAL
   freopen("input.txt", "rt", stdin);
   freopen("output.txt", "wt", stdout);
#endif

   	ios_base::sync_with_stdio(false);
	cin.tie(0);
	int tc = 1; 
	cin >> tc;
	while(tc--) solve();
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED