Monistus

input/code.cpp: In function 'int main()':
input/code.cpp:30:13: warning: unused variable 'n' [-Wunused-variable]
   30 |         int n = s.size();
      |             ^

/*
    C++ code author: Vludo
    Created: 2023-11-05 21:41:55
*/
#include <bits/stdc++.h>
 
#define forn(i, n) for(int i=0; i<n; i++)
#define FOR(i, j, n) for(int i=j; i<n; i++)
#define pb push_back
#define F first
#define S second
#define ever ;;
 
typedef long long ll;
 
const int inf = 1.01e9;
const int mod = 1e9 + 7;
 
using namespace std;
 
string s;
string t;
 
int main () {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	
	cin >> s;
	
	int n = s.size();
	
	reverse(s.begin(), s.end());
	
	// int pos = n-1;
	
	while (s.size() > 0) {
		int num = *s.end()-'0';
		if (num >= 0 && num <= 9) {
			s.erase(s.end());
			string monistus = s.substr(s.size()-num, s.size());
			s += monistus;
			continue;
		}
		t.pb(*s.end());
		s.erase(s.end());
	}
	
	cout << t << endl;
	
	return 0;
}

Test 1

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 2

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 3

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 4

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 5

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 6

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 7

Group: 1, 2

Verdict: RUNTIME ERROR

code: malloc.c:2617: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 8

Group: 2

Verdict: RUNTIME ERROR

munmap_chunk(): invalid pointer

Test 9

Group: 2

Verdict: RUNTIME ERROR

double free or corruption (out)

Test 10

Group: 2

Verdict: RUNTIME ERROR

munmap_chunk(): invalid pointer

Test 11

Group: 2

Verdict: RUNTIME ERROR

Test 12

Group: 2

Verdict: RUNTIME ERROR

munmap_chunk(): invalid pointer

Test 13

Group: 2

Verdict: RUNTIME ERROR

munmap_chunk(): invalid pointer

Test 14

Group: 2

Verdict: RUNTIME ERROR

munmap_chunk(): invalid pointer