C Program to find the sum of array elements

Program

#include<stdio.h>
void main()
{
	int a[10];
	int i, size, sum;
	printf("Enter the size of array:\t");
	scanf("%d", &size);
	printf("Enter %d elements:\n", size);
	for(i = 0; i < size; i++)
		scanf("%d", &a[i]);
	for(i = 0; i < size; i++)
		sum = sum + a[i];
	printf("Sum of array elements is: %d\n", sum);
}

Output

Enter 5 elements:
4
1
90
21
66
Sum of array elements is: 182