Alice has a hand of cards, given as an array of integers. Now she wants to rearrange the cards into groups so that each group is size W, and consists of W consecutive cards. Return true if and only if she can. Example 1: Input: hand = [1,2,3,6,2,3,4,…
Alice has a hand of cards, given as an array of integers. Now she wants to rearrange the cards into groups so that each group is size W, and consists of W consecutive cards. Return true if and only if she can. Example 1: Input: hand = [1,2,3,6,2,3,4,…
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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 日期 题目地址:https://leetcode.com/problems/hand-of-straights/description/ 题目描述 Alice has a hand of cards, given as an array of integers. Now she wants to rearrange the cards into gr…
Question 846. Hand of Straights Solution 题目大意:打牌,判断牌是否能全部按顺子出 思路:构造一个list,存储1,2,3,4,5,6,7,8并排序,构造一个map存储每个数对应出现的次数 Java实现: public boolean isNStraightHand(int[] hand, int W) { List<Integer> nums = new ArrayList<>(); Map<Integer, Integer>…
463. Island Perimeterhttps://leetcode.com/problems/island-perimeter/就是逐一遍历所有的cell,用分离的cell总的的边数减去重叠的边的数目即可.在查找重叠的边的数目的时候有一点小技巧,就是沿着其中两个方向就好,这种题目都有类似的规律,就是可以沿着上三角或者下三角形的方向来做.一刷一次ac,但是还没开始注意codestyle的问题,需要再刷一遍. class Solution { public: int islandPerime…
All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) . Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…