Suuremmat

input/code.cpp: In function 'int main()':
input/code.cpp:35:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 1; i < ans.size(); i++) {
                   ~~^~~~~~~~~~~~

#include <iostream>
#include <string>
#include <sstream>

typedef long long ll;
using namespace std;

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int tests; cin>>tests;

  for (int xx = 0; xx < tests; xx++) {
    string n; cin >> n;
  
  stringstream tt(n);
  ll dd; tt >> dd;

  string x = "";
  while (x.size() < n.size()) {
    x += '1';
  }

  stringstream d(x);

  ll s; d >> s;
  ll adder = s;

  while (s <= dd) {
    s += adder;
  }

  string ans = to_string(s);
  char start = ans[0];
  for (int i = 1; i < ans.size(); i++) {
    ans[i] = start;
  }
  

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

  
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED