#include<stdio.h>
#include<unistd.h> 
#include<stdlib.h>
#include<sys/types.h>
#include<sys/wait.h>

long int fib(int n){
	if(n > 2)
		return fib(n-1) + fib(n-2);
	return 1;
}

void mkzombie(){
	pid_t result = fork();
	if(!result){
		fib(60);
		exit(0);
	} else {
		kill(result, SIGINT);
	}
}

int main(){
	printf("Making 100 zombies\n");
	for(int i = 0; i < 100; i++)
		mkzombie();
	printf("Now admire all the zombies!\n");
	printf("We'll keep the CPU warm\n");
	fib(60);
	return 0;
}