Monistus

input/code.cpp: In function 'int main()':
input/code.cpp:17:23: 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 = 0; i < s.size(); i++)
      |                     ~~^~~~~~~~~~

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

using namespace std;

string s;
vector<pair<int, int>> v;

int main()
{
    s.reserve(50001);
    v.reserve(50001);
    
    cin >> s;

    for (int i = 0; i < s.size(); i++)
    {
        if (isdigit(s[i]))
        {
            int sz = s[i] - '0';
            v.emplace_back(i, sz);
        }
    }

    for (int i = v.size() - 1; i > -1; i--)
    {
        auto [p1, sz1] = v[i];

        s.erase(p1, 1);
        s.insert(p1, s, p1, sz1);

        for (int l = v.size() - 1; l > i; l--)
        {
            auto [p2, sz2] = v[l];

            if (p1 + sz1 >= p2)
            {

                int o1 = p2 - (l - i);
                int o2 = p1 + 2 * sz1;
                int siz = sz2;

                if (p1 + sz1 >= p2 + sz2)
                {
                   s.insert(p1 + sz1, s, o2, siz - 1);
                   sz1 += siz - 1;
                }
                else
                {
                    int dif = ((p2 + sz2) - (p1 + sz1));

                    if (p2 != p1 + sz1)
                    {
                        s.erase(p1 + sz1 - dif, dif);
                        s.insert(o1, s, o1, siz);
                    }
                    else
                    {
                        s.replace(o1, 1, s, p1, dif);
                    }
                }
            }
        }
    }

   cout << s;

   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: 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