Program to count total number of array elements in C

#include <stdio.h>
int main()
{
	int arr[]={10,20,30,40,50};
	int n;
	
	n=sizeof(arr)/sizeof(int);
	
	printf("Number of elemenets are: %d\n",n);
	
	return 0;
}

Output

Number of elemenets are: 5

Another method

We can divide the occupied size of all array elements by size of any one array element. Consider the following statement:

n=sizeof(arr)/sizeof(arr[0]);