Compare two linked lists

 https://www.hackerrank.com/challenges/compare-two-linked-lists/problem

bool compare_lists(SinglyLinkedListNode* head1, SinglyLinkedListNode* head2) {

if(head1==NULL && head2!=NULL) return 0;

if(head2==NULL && head1!=NULL) return 0;

if(head1==NULL && head2==NULL) return 1;

SinglyLinkedListNode* temp1 =head1;

SinglyLinkedListNode* temp2 =head2;

while(temp1->next!=NULL && temp2->next!=NULL)

{

    if(temp1->data==temp2->data)

    {

        temp1=temp1->next;

        temp2=temp2->next;

    }

    else if(temp1->data!=temp2->data)

    {

        return 0;

    }

}

if(temp1->next!=NULL || temp2->next!=NULL) return 0;

return 1;

}