Monistus

input/code.cpp: In function 'int main()':
input/code.cpp:27:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |                 for (int j = i; j < stack.size(); ++j) {
      |                                 ~~^~~~~~~~~~~~~~
input/code.cpp:33:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         if (idx-offset >= input.size()) {
      |             ~~~~~~~~~~~^~~~~~~~~~~~~~~

#include <string>
#include <vector>
#include <iostream>

int main() {
    std::string input;
    std::vector<std::pair<int, int>> stack;
    std::string output;

    std::cin >> input;

    int idx = 0;
    int offset = 0;

    while (true) {
        for (int i = stack.size()-1; i > -1; --i) {
            stack[i].second -= 1;
        }

        for (int i = stack.size()-1; i >= 0; --i) {
            if (stack[i].second < 0) {
                int value = stack[i].first;

                stack.erase(stack.begin()+i);
                offset += value;

                for (int j = i; j < stack.size(); ++j) {
                    //stack[j].first += value;
                }
            }
        }

        if (idx-offset >= input.size()) {
            break;
        }

        if (input[idx-offset] >= '1' && input[idx-offset] <= '9') {
            stack.push_back(std::pair(input[idx-offset] - '0', input[idx-offset] - '0'));
        } else {
            output.push_back(input[idx-offset]);
        }

        ++idx;
    }

    std::cout << output << std::endl;

    return 0;
}

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

Test 5

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

Test 6

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 2

Verdict: ACCEPTED

Test 12

Group: 2

Verdict: WRONG ANSWER

Test 13

Group: 2

Verdict: WRONG ANSWER

Test 14

Group: 2

Verdict: WRONG ANSWER