Re: [Dev-C++] Arrays

The problem is I have no idea where to start.....

The assignment is a generic one in which the professor just has us playing
around with arrays to get used to using them....What is being asked of me is
to change the initialization statement in this program to have the array
initialized by the file....but I don't know where to begin....


#include <stdio.h>
#include <stdlib.h>


void PrintArray(int[], int);
int SumArray(int[], int);
int DeleteElement(int[], int, int);
int InsertIndex(int[], int, int, int);


int main()
{
      int a[20] = {14,17,23,26,33,38,39,41,52,56,0,0,0,0,0,0,0,0,0,0};

      int i,
      sum,
     NumEls = 10,
      DeleteIndex,
      InsertIndex,
     x;

      printf("Array at start of program:\n\n");
      PrintArray(a, NumEls);
      printf("\n\n");

      printf("The sum of these elements is %d.\n", SumArray(a, NumEls));

      DeleteIndex = 5;

      printf("After deletion of %d:\n", a[DeleteIndex]);

      NumEls = DeleteElement(a, NumEls, DeleteIndex);

      PrintArray(a, NumEls);
      printf("\n\n");


      printf("Enter a value to insert:  ");
      scanf("%d", &x);
      printf("\n\n");

      InsertIndex = 6;

      NumEls = InsertElement(a, NumEls, InsertIndex, x);

      PrintArray(a, NumEls);

      system("PAUSE");
      return 0;
}




void PrintArray(int b[], int NumEls)
{
 int i;

 i = 9;
 printf("The element at index %d is %d.\n\n", i, b[i]);

 printf("Array A has %d elements: ", NumEls);

 for (i = 0; i < NumEls; i++)
     printf("%3d", b[i]);

 printf("\n");
}



int SumArray(int b[], int NumEls)
{

  int sum = 0;
  int count = 0;

  for(count = 0; count < NumEls; count++)
   {
       sum += b[count];

    }//end for statemnt

  return sum;

}



int DeleteElement(int b[], int NumEls, int DeleteIndex)
{
   int count;

   for(count = DeleteIndex; count < NumEls; count++)
    {

      b[count] = b[count + 1];

    }//end of for statement

   NumEls--;

   return NumEls;
}

int InsertElement(int b[], int NumEls, int InsertIndex, int x)
{
  int count;

  for(count = NumEls + 1; count > InsertIndex; count--)
  {

   b[count] = b[count - 1];

  }


  b[InsertIndex] = x;

  NumEls++;

  return NumEls;
}


----- Original Message -----
From: Chad Simmons <ho...@ho...>
To: <dev...@li...>
Sent: Sunday, November 19, 2000 3:55 PM
Subject: Re: [Dev-C++] Arrays


> >From: "Saundra Schwarz" <Sch...@ho...>
> >Reply-To: dev...@li...
> >To: <dev...@li...>
> >Subject: [Dev-C++] Arrays
> >Date: Sun, 19 Nov 2000 18:47:00 -0800
> >
> >I have an assignment for school that is asking me to include a procedure
> >that reads 10 values from a text file to initialize an array.  The
> >professor hasn't covered this  aspect of arrays yet and I'm not finding
the
> >info in the text....I'm looking for general how to's....thanks.
> >
> >Sam
>
> Well, there's two main components to this problem. The first is reading
> numbers from a file. The second is assigning those numbers into an array.
> Which part is giving you trouble? (or is it both) Perhaps if you could
show
> how far you've gotten so far we may be able to give you some pointers as
to
> where to go next.
>
> Chad Simmons
> _________________________________________________________________________
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