Suuremmat

#include <bits/stdc++.h>
#define ll long long int

using namespace std;

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	int t; cin >> t;

	while(t--)
	{
		string n; cin >> n;
		
		int ns = n.length();
		string ans = string(ns,n[0]);

		bool sm = false;
		for(int i = 0; i<ns; i++)
		{
			if(n[i]>ans[i]) break;
			if(n[i]<ans[i])
			{
				sm = true;
				break;
			}
		}
		
		if(sm)
		{
			cout << ans << "\n";
			continue;
		}

		if(n[0]=='9')
			ans = string(ns+1,'1');
		else
			ans = string(ns,n[0]+1);

		cout << ans << "\n";
	}

	return 0;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED