206_Reverse_Linked_List.cpp

Class Solution {
public:
    ListNode* reverseList(ListNode* head) {
        ListNode* curr=head, *prev=NULL, *temp;
        while(curr!=NULL){
            temp=curr->next;
            curr->next=prev;
            prev=curr;
            curr=temp;   
        }
        return prev;
    }
};