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 并查集 日期 题目地址:https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/description/ 题目描述 On a 2D plane, we place stones at some integer coordinate points. Each c…

题目如下: On a 2D plane, we place stones at some integer coordinate points.  Each coordinate point may have at most one stone. Now, a move consists of removing a stone that shares a column or row with another stone on the grid. What is the largest possib…

原题链接在这里:https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ 题目: On a 2D plane, we place stones at some integer coordinate points.  Each coordinate point may have at most one stone. Now, a move consists of removing a stone that…

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 遍历一遍 日期 题目地址:https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/ 题目描述 In a row of dominoes, A[i] and B[i] represent the top and bottom halves of the i-th domi…

这道题是LeetCode里的第771道题. 题目要求: 给定字符串J 代表石头中宝石的类型,和字符串 S代表你拥有的石头. S 中每个字符代表了一种你拥有的石头的类型,你想知道你拥有的石头中有多少是宝石. J 中的字母不重复,J 和 S中的所有字符都是字母.字母区分大小写,因此"a"和"A"是不同类型的石头. 示例 1: 输入: J = "aA", S = "aAAbbbb" 输出: 3 示例 2: 输入: J = "…

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 脑筋急转弯 日期 题目地址:https://leetcode.com/problems/moving-stones-until-consecutive/ 题目描述 Three stones are on a number line at positions a, b, and c. Each turn, you pick up a stone at…

Jewels and Stones Description You're given strings J representing the types of stones that are jewels, and S representing the stones you have. Each character in S is a type of stone you have. You want to know how many of the stones you have are also…

题目如下: Three stones are on a number line at positions a, b, and c. Each turn, you pick up a stone at an endpoint (ie., either the lowest or highest position stone), and move it to an unoccupied position between those endpoints.  Formally, let's say th…

On a 2D plane, we place stones at some integer coordinate points. Each coordinate point may have at most one stone. Now, a move consists of removing a stone that shares a column or row with another stone on the grid. What is the largest possible numb…

You need to find the largest value in each row of a binary tree. Example: Input: 1 / \ 3 2 / \ \ 5 3 9 Output: [1, 3, 9] 题目要求计算二叉树每一层的最大值,并且将最大值组成一个列表输出.从题目要求很容易可以看出,这是一个二叉树的层序遍历,在遍历的过程中对比求出每一层的最大值.层序遍历的思路就是从根节点开始,依次把每个节点的左右节点放入一个队列中,接着依次遍历队列中的所有节点.…