#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
int main (void){
        pid_t pid;
        pid_t childid;
        pid_t parentid;
        int fab1=0,fab2=1,fab3,i,num;
        printf("Enter a number");
        scanf("%d",&num);
        pid=fork();
        if (pid == 0){
                childid=getpid();
                parentid=getppid();
                printf("\n The parent process id is: %d\n, ",parentid);
                printf("%d,%d,",fab1,fab2);

                for(i=2;i<=num;++i){
                        fab3=fab1+fab2;
                        printf("%d,",fab3);
                        fab1=fab2;
                        fab2=fab3;

                }
                printf("\n");
                exit(0);
        }
        else if (pid > 0){
                sleep(100);// meken wene parent process eka sleep krna eka , when the child's executionis done parent is sleeping eka nisa process table ekn child ain wenne na
                int x;
//                x=wait (NULL);// wait use krne process table ekn ain krnda process ekata, sleeeping nisa ain wenne process table eken
                printf ("Child Process ID is : %d",x);
        }
return 0;
}
~
~
~