Write a C program to accept three integers as command line arguments and find the minimum, maximum and average of the three numbers. Display error message if the number of arguments entered are invalid



#include<stdio.h>
#include<conio.h>
void main(int argc , char * argv[])
{
            int i,sum=0;
            float avg;
            int max;
            int min;
            clrscr();

            if(argc!=4)
              {
              printf("you have forgot to type numbers.");
              exit(1);
              } 
            for(i=1;i<argc;i++)
             {
                        sum = sum + atoi(argv[i]);
                        avg=sum/3;
                        }
             printf("the average is%f",avg);

             //for max
             max=argv[1];
             min=argv[1];
                        for(i=1;i<argc;i++)
                          {
                        if(atoi(argv[i])>max)
                         {
                         max=atoi(argv[i]);
                         }
                         }
                            if(atoi(argv[i])<min)
                         {
                         min=atoi(argv[i]);
                         }
  printf("\n the maximum number is %d",max);
              printf("\n the minimum number is %d",min);
                          getch()
}