作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 preSum + 字典 日期 题目地址:https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list/ 题目描述 Given the head of a linked list, we repeatedly delete consecutive sequ…

题目如下: Given the head of a linked list, we repeatedly delete consecutive sequences of nodes that sum to 0 until there are no such sequences. After doing so, return the head of the final linked list.  You may return any such answer. (Note that in the e…

""" Given the head of a linked list, we repeatedly delete consecutive sequences of nodes that sum to 0 until there are no such sequences. After doing so, return the head of the final linked list. You may return any such answer. (Note that i…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 小根堆 日期 题目地址:https://leetcode.com/problems/maximize-sum-of-array-after-k-negations/ 题目描述 Given an array A of integers, we must modify the array in the following way: we choose a…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 Java解法 Python解法 日期 题目地址:https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/#/description 题目描述 Given an array of integers that is already sorted in ascending order,…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 方法一:BFS 方法二:DFS 日期 题目地址:https://leetcode.com/problems/two-sum-iv-input-is-a-bst/description/ 题目描述 Given a Binary Search Tree and a target number, return true if there exist two…

[LeetCode]331. Verify Preorder Serialization of a Binary Tree 解题报告(Python) 标签: LeetCode 题目地址:https://leetcode.com/problems/verify-preorder-serialization-of-a-binary-tree/description/ 题目描述: One way to serialize a binary tree is to use pre-order traver…

[LeetCode]430. Flatten a Multilevel Doubly Linked List 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list/description/ 题目描述: You are given…

[LeetCode]378. Kth Smallest Element in a Sorted Matrix 解题报告(Python) 标签: LeetCode 题目地址:https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/description/ 题目描述: Given a n x n matrix where each of the rows and columns are sorted in ascen…

[LeetCode]154. Find Minimum in Rotated Sorted Array II 解题报告(Python) 标签: LeetCode 题目地址:https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii/description/ 题目描述: Follow up for "Find Minimum in Rotated Sorted Array": What if duplicat…