LeetCode Solution, Easy, 203. Remove Linked List Elements

203. Remove Linked List Elements 題目敘述 Given the head of a linked list and an integer val, remove all the nodes of the linked list that has Node.val == val, and return the new head. Example 1: Input: head = [1,2,6,3,4,5,6], val = 6 Output: [1,2,3,4,5...