What Is The Output Of The Following Codep Pre Langc #1725

 #include<stdio.h> #include<stdlib.h> struct Node { int val; struct Node *next; }*head; int get_len() { struct Node *temp = head->next; int len = 0; while(temp != 0) { len++; temp = temp->next; } return len; } int main() { int arr[10] = {1,2,3,4,5}, n = 5, i; struct Node *temp, *newNode; head = (struct Node*)malloc(sizeof(struct Node)); head->next = 0; int len = get_len(); printf("%d",len); return 0; }