Monistus

input/code.cpp: In function 'std::string duplicateSubstring(std::string)':
input/code.cpp:8:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int i = 0; i < s.length(); ++i)
      |                     ~~^~~~~~~~~~~~

#include <iostream>
#include <string>

using namespace std;

string duplicateSubstring(string s)
{
    for (int i = 0; i < s.length(); ++i)
    {
        if (isdigit(s[i]))
        {
            int d = s[i] - '0';
            int len = s.length();
            s.resize(len + d); // Expand the string to accommodate the new characters
            for (int j = len - 1; j >= i; --j)
            {
                s[j + d] = s[j]; // Shift the substring to the right
            }
            for (int j = 0; j < d; ++j)
            {
                s[i + j] = s[i + j + d]; // Duplicate the substring
            }
            s.erase(i, 1); // Remove the digit
            i += d - 1;    // Adjust the position for the next iteration
        }
    }
    return s;
}

int main()
{
    string input;
    cin >> input;
    cout << duplicateSubstring(input) << endl;
    return 0;
}

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

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: WRONG ANSWER

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 2

Verdict: TIME LIMIT EXCEEDED