why "--x" gives output until time limit is not exceeded?

Question

https://code.sololearn.com/c7NSwM4loV88/?ref=app

Answer 1

#include <iostream>
using namespace std;

int main() {
for(int i = 0; i <= 3; --i)
cout<<"#*";
return 0;
}

In this code, the value of i will always remain below 3 when you subtract it. So it caused an infinite loop and the Sololearn compiler only compiled till the time limit exceeded

Answer 2

If you keep subtracting from zero it will always remain <3. So it is an infinite loop where x never >3.