Suuremmat

#include <iostream>
#include <string>
 
using namespace std;
 
bool a(string str, char f){
    for(char& c : str){
        if(c != f){
            if (c < f){
                return true;
            } else{
                return false;
            }
        }
    }
    return false;
}
 
 
int main(){
    int t;
    cin >> t;
 
    for (int i = 0; i < t; i++)
    {
        string n;
        cin >> n;
 
        unsigned int len = n.length();
 
        char f = n[0];
 
        if(!a(n, f)){
            f++;
        }
 
        if(f > '9'){
            f = '1';
            len++;
        }
 
        
 
        cout << string(len, f) << "\n";
    }
    
    return 0;
}
 
 

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED