C Program to determine size of array

Simple C Program to find length of array

#include<stdio.h>
int main()
{
 int arr[]={1,2,3,4,5},size;
 
 size=sizeof(arr)/sizeof(arr[0]);
 printf("Size of array = %d",size);
 return 0;
}

Another C program to find size of array using pointer

#include<stdio.h>
int main()
{
 int arr[]={1,6,9,2,3,7},size;
 
 size=sizeof(arr)/sizeof(*arr);
 printf("Size of array = %d",size);
 return 0;
}