why doesn't my c++ code outputs?

Question

My code:
#include <iostream>
using namespace std;

int fib(int n){
if (n <= 1){
return n;
}
return fib(n-1) + fib(n-2);
}

int main(){
for(int x=100; x>0; x--){ //<-----
cout<<fib(x)<<endl;
}
return 0;
}

in the for loop
if the x is 10, it works
if it is 100 it doesn't
why?

Answer 1

Not sure, but I think your code gets a execution time out .That's why it doesn't show any output.
Can you imagine how many times the fib() function is called when you use a loop to get the value of fib from 100 to 1?
It takes so much memory power and takes so much time.I think sololearn doesn't give that much time.

Answer 2

i tested then found out that it works fine at 30,
then at 31 it breaks while running
after that it just doesn't work

Answer 3

Try in a good compiler or ide like cxxdroid(android) or codeblocks(computer).It works there after 30 also.