#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>

int main(int argc, char **argv)
{

	//cmp - functie ca strcmp


	char n,temp[500],c;
	int fd,arr[500],sum=0,k=0,rez,TOTAL_NO=0,j=0;

	if(argc!=2)
	{printf("Usage %s arg1, arg2",argv[0]);
	exit(1);}

	if((fd=open(argv[1],O_RDONLY))<0)
	{
	printf("Error at opening");
	exit(2);}

	while((n=read(fd,&c,1))>0)
	{

		if(isdigit(c))
		{
			temp[j]=c;
			j++;
		}
		else
		{
			arr[TOTAL_NO]=atoi(temp);
			TOTAL_NO++;
			memset(temp,0,j);
			j=0;
		}
	}

	if(n<0)
	{
	printf("Error reading from file");
	exit(3);}


	pid_t pid1,pid2;

	if((pid1==fork())<0)
		printf("error pid1\n");
	else if(pid1==0)
	{
		for(j=0;j<TOTAL_NO;j++)
		{
			sum=sum+arr[j];
		}
		printf("Avg of file numbers is: %d\n",sum/TOTAL_NO);
	}
	else if((pid2=fork())<0)
			printf("error pid2\n");
	else if(pid2==0)
		{
		 qsort(arr,TOTAL_NO,sizeof(int),comp);
		 for(i=0;i<TOTAL_NO;i++)
			printf("Elem %d is %d\n",i,arr[i]);
		}

	wait(&status);

	close(fd);


	return 0;
}