To send N numbers from a parent process to child process and display them.

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main()
{
    int pid,a,n,p[2],i,buffr1[100],buffr2[100];
    a = pipe(p);
    if(a == -1)
    {
       fprintf(stderr, "Pipe Failed.\n");
       return EXIT_FAILURE;
    }
    pid = fork();
    switch(pid)
{
case -1:perror("main: fork");
exit(1);
case 0: n=read(p[0],buffr2,sizeof(buffr2));
printf("In child process (ID: %d)\n", pid);
n=n/sizeof(int);
for(i=0;i<n;i++)
printf("Number %d:- %d\n",i+1,buffr2[i]);
exit(1);
break;
default: printf("In parent process (ID: %d)\n", pid);
printf("Enter the limit:- ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("Enter the element %d:- ",i+1);
scanf("%d",&buffr1[i]);
}
write(p[1],buffr1,n*sizeof(int));
waitpid(pid,NULL,0);
break;
}
close(p[0]);
    close(p[1]);
    return 0;
}