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https://programmers.co.kr/learn/courses/30/lessons/81303?language=cpp 코딩테스트 연습 - 표 편집 8 2 ["D 2","C","U 3","C","D 4","C","U 2","Z","Z"] "OOOOXOOO" 8 2 ["D 2","C","U 3","C","D 4","C","U 2","Z","Z","U 1","C"] "OOXOXOOO" programmers.co.kr 링크드 리스트 형태의 구조체를 선언하여 풀이. Node 구조체를 선언하고 내부에는 val, prev, next를 가지도록 한다. 초기값은 모두 -1을 가지며, for문을 통해 값을 모두 갱신한다. Node 구조체 배열을 node라는 이름으로 n개의 크기만큼 선언하고, Node 구조체를 저장..

206. Reverse Linked List Given the head of a singly linked list, reverse the list, and return the reversed list. Example 1: Input: head = [1,2,3,4,5] Output: [5,4,3,2,1] Example 2: Input: head = [1,2] Output: [2,1] Example 3: Input: head = [] Output: [] Constraints: The number of nodes in the list is the range [0, 5000]. -5000 next; } current = head; while(!stk.empty()){ ListNode * tmp = stk.top..

160. Intersection of Two Linked Lists Easy 6192688Add to ListShare Given the heads of two singly linked-lists headA and headB, return the node at which the two lists intersect. If the two linked lists have no intersection at all, return null. For example, the following two linked lists begin to intersect at node c1: It is guaranteed that there are no cycles anywhere in the entire linked structur..

141. Linked List Cycle Given head, the head of a linked list, determine if the linked list has a cycle in it. There is a cycle in a linked list if there is some node in the list that can be reached again by continuously following the next pointer. Internally, pos is used to denote the index of the node that tail's next pointer is connected to. Note that pos is not passed as a parameter. Return t..

2. Add Two Numbers You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked list. You may assume the two numbers do not contain any leading zero, except the number 0 itself. Example 1: Input: l1 = [2,4,3], l2 = [5,6,4] Output: [7,0,8]..