Thread: Help Me!

Code:

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

#define SIZE 4

int main()
{
char a[SIZE];
char *ptrA=a;
int c[SIZE];
int count;
int sum;
int first,second,third,fourth;
int varify=1;

while(varify==1)
{
//get nums
	printf("Enter Number for Array\n");
	
	for(count=0;count<SIZE;count++)
	{
		scanf("%d",&a[count]);
	}
//convert to ints
	for(count=0;count<SIZE;count++)
	{
		c[count]=atoi(ptrA);
	}
//checking
	for(count=0;count<SIZE;count++)
	{
		if(isdigit(c[count])==1)
		{
			printf("Must A Numeric Value");
			varify=1;
		}
		else
		{
			varify=0;
		}
	}
}


//printing
	printf("Input Reads:\n");
	
	for(count=0;count<SIZE;count++)
	{
		
		printf("%d\n",a[count]);
	}

//adding
	printf("Summing Numbers\n");
	
	first=a[0];
	second=a[1];
	third=a[2];
	fourth=a[3];
		
//printing
	sum=first+second+third+fourth;
	printf("Sum is: %d\n",sum);

}

This runs but then errors once it is finished! I dont know why.
Thanx!