Suuremmat

#include <iostream>
#include <vector>
#include <string>
#define ll long long
int main()
{
	 int n = 0;
	 std::cin >> n;

	 std::vector<ll> vec(n);
	 for (int i = 0; i < n; i++)
	 {
		  std::cin >> vec[i];
	 }

	 std::string s;
	 std::string s1;
	 std::string s2;
	 std::string s3;
	 char first;
	 int length;

	 for (int i = 0; i < n; i++)
	 {
		  ll x = vec[i];
		  s = std::to_string(x);
		  length = s.length();
		  first = s[0];


		  s1 = std::string(length, first);
		  s2 = std::string(length, first + 1);
		  s3 = std::string(length + 1, '1');

		  if (std::stoll(s1) > x)
		  {
				std::cout << s1;
		  }
		  else if (first < '9' && std::stoll(s2) > x) {
				std::cout << s2;
		  }
		  else {
				std::cout << s3;
		  }

		  std::cout << '\n';
	 }




}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED