Monistus

input/code.cpp: In function 'int main()':
input/code.cpp:18:23: warning: unused variable 'i' [-Wunused-variable]
   18 |     long unsigned int i = 0;
      |                       ^

#include<bits/stdc++.h>
	
using namespace std::chrono;
 
using namespace std;
 
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
 
    string a;
 
    cin >> a;
    reverse(a.begin(), a.end());
 
    // auto start = std::chrono::steady_clock::now();
 
    long unsigned int i = 0;
    int o = 0;
    queue<char> c;
    int n = a.length();
    while (n > 0 && o <  5e5){
 
        char s = a.back();
        if(s >= '0' && s <= '9'){
            o += 1;
            int b = s - '0';
            a.pop_back();
            a += a.substr(n - b - 1, b);
 
        }
        else{
            c.push(a.back());
            a.pop_back();
        }
        n = a.length();
    }
    while (c.size() > 0)
    {
        cout << c.front();
        c.pop();
    }
    
    // auto end = std::chrono::steady_clock::now();
    // std::chrono::duration<double> elapsed_seconds = end - start;
    // cout << elapsed_seconds.count();
}
 
 
// a = input()
// i = 0
// while i < len(a):
//     s = a[i]
//     if(s.isnumeric()):
//         b = int(s)
//         a = a[:i] + a[i+1:i+b+1] + a[i+1:]
//     else: i += 1
 
// print(a)

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