Monistus

input/code.cpp: In function 'std::string haku(std::string)':
input/code.cpp:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for(int i = 0; i < s.size(); i++){
      |                    ~~^~~~~~~~~~
input/code.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |             if(i == s.size()-1){
      |                ~~^~~~~~~~~~~~~

#include<bits/stdc++.h>
using namespace std;
using ll = long long;

bool b = false;

string haku(string s){

    //cout << s << "\n";

    string m = "";

    for(int i = 0; i < s.size(); i++){
        char c = s[i];

        if(c >= '1' && c <= '9'){
            if(i == s.size()-1){
                b = true;
                m += c;
                continue;
            }

            int x = c - '0';
 
            string u = "";

            for(int j = 1; j <= x; j++) u += s[i + j];
            
            u = haku(u);
 
            m += u;
 
        }
        else m += c;
    }


    return m;

}

 
int main(){
   
    string s;
    cin >> s;

    do{
        b = false;
        s = haku(s);
    }
    while(b);
 
    cout << s;




}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

Test 6

Group: 1, 2

Verdict: WRONG ANSWER

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 2

Verdict: ACCEPTED

Test 12

Group: 2

Verdict: ACCEPTED

Test 13

Group: 2

Verdict: ACCEPTED

Test 14

Group: 2

Verdict: ACCEPTED