Monistus

input/code.cpp: In function 'int main()':
input/code.cpp:17:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for (int i = 50001; i < s.size(); i++)
      |                         ~~^~~~~~~~~~

#include <iostream>
#include <string>

using namespace std;

string s, hs;

int main()
{
    cout.sync_with_stdio(false);
    cin.tie(0);

    cin >> hs;
    s.resize(50001);
    s = s + hs;

    for (int i = 50001; i < s.size(); i++)
    {
        if (isdigit(s[i]))
        {
            int v = s[i] - '0';
            s.replace(i - v + 1, v, s, i + 1, v);
            i -= v;
        }
        else
            cout << s[i];
    }

    return 0;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

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: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 2

Verdict: ACCEPTED

Test 12

Group: 2

Verdict: ACCEPTED

Test 13

Group: 2

Verdict: ACCEPTED

Test 14

Group: 2

Verdict: ACCEPTED