Monistus

input/code.cpp: In function 'std::string haku(std::string)':
input/code.cpp:15:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(int i = 0; i < s.size(); i++){
      |                    ~~^~~~~~~~~~
input/code.cpp:21:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |             if(i >= s.size()-x){
      |                ~~^~~~~~~~~~~~~

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

bool b = false;

string haku(string s){

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

    string m = "";

    bool z = false;

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

        if(c >= '1' && c <= '9' && !z){
            int x = c - '0';

            if(i >= s.size()-x){
                b = z = true;
                m += c;

                continue;
            }

            
 
            string u = "";

            for(int j = 1; j <= x; j++) u += s[i + j];

            //cout << "Lähetetään " << u <<  "\n";
            
            u = haku(u);
 
            m += u;
 
        }
        else m += c;
    }

    //cout << "Palautetaan " << m << "\n";

    return m;

}

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

    string x = s;
    do{
        b = false;
        x = haku(x);
    }
    while(b);
 
    //cout << x << "\n";

    /* string h = "";

    for(int i = 0; i < s.size(); i++){
            
        char c = s[i];
 
        if(c >= '1' && c <= '9'){
            int x = c - '0';
 
            string m = "";
            for(int j = 1; j <= x; j++) m += s[i + j];
 
            s.insert(i + 1, m);
 
        }
 
        else h += c;
    }

    cout << (x == h); */
    cout << x;
    //cout << "\n" << h;





}

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: ACCEPTED

Test 6

Group: 1, 2

Verdict: ACCEPTED

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