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

int main()
{
	int fdTC[2], fdTS[2];
	if(pipe(fdTC)== -1)
	{
		perror("Could not create pipe\n");
		exit(1);
	}
	if(pipe(fdTS) == -1)
	{
		close(fdTC[0]);
		close(fdTC[1]);
		perror("Could not create pipe\n");
		exit(1);
	}
	
	int ch;
	
	while(1)
	{
		ch= fork();
		if(ch == 0)
		{
			printf("Enter the number of integers: ");
			int n;
			scanf("%d", &n);
			write(fdTS[1], &n, sizeof(int));
			int i=0, c;
			for(i=0;i<n;i++)
			{
				scanf("%d", &c);
				write(fdTS[1], &c, sizeof(int));
			}
			
			read(fdTC[0], &c, sizeof(int));
			read(fdTC[0], &i, sizeof(int));
			
			printf("Max: %d	Min: %d\n", c, i);	
			exit(0);
		}
		else if(ch > 0)
		{
			int n;
			read(fdTS[0], &n, sizeof(int));
			int i=0, max=-100000, min=100000;
			for(i=0;i<n;i++)
			{
				int c;
				read(fdTS[0], &c, sizeof(int));
				if(c > max)
					max = c;
				if(c < min)
					min = c;
			}
			
			write(fdTC[1], &max, sizeof(int));
			write(fdTC[1], &min, sizeof(int));
		}
		else
			perror("Could not create child\n");
	}
}