Time sharing

#include<stdio.h>
#include<sys/types.h>
main()
{
int d,i;
d=fork();
for(i=0;i<3;i++)
{
if(d==0)
{
printf("\n CHILD PROCESS \n");
sleep(3);
}
else
{
printf("\n PARENT PROCESS \n");
sleep(3);
}
}
}

OUTPUT
./a.out

Child Process

Child Process

Parent Process

Child Process

Parent Process

Parent Process