Can anyone explain how this code is running

Question

#include <stdio.h>

int main() {
fork();
fork() && fork() || fork();
fork();
printf("hi");
return 0;
}
And how HI is printing 20 times ?

https://code.sololearn.com/c2kACp1nnw31/?ref=app

Answer 1

Very_Hard(asm & js & c++ & java & py & (@Hard)) I traced that thanks for your time here is the reasons
https://www.sololearn.com/post/170233/?ref=app

Answer 2

doesnt seem to work for me.