bernieloveslife

2019年1月8日

摘要： Given two strings A and B of lowercase letters, return true if and only if we can swap two letters in A so that the result equals B. Example 1: Exampl 阅读全文

posted @ 2019-01-08 18:11 bernieloveslife 阅读(126) 评论(0) 推荐(0) 编辑

913. Cat and Mouse

摘要： A game on an undirected graph is played by two players, Mouse and Cat, who alternate turns. The graph is given as follows: graph[a] is a list of all n 阅读全文

posted @ 2019-01-08 14:47 bernieloveslife 阅读(251) 评论(0) 推荐(0) 编辑

2019年1月7日

443. String Compression

摘要： Given an array of characters, compress it in place. The length after compression must always be smaller than or equal to the original array. Every ele 阅读全文

posted @ 2019-01-07 21:42 bernieloveslife 阅读(96) 评论(0) 推荐(0) 编辑

506. Relative Ranks

摘要： Given scores of N athletes, find their relative ranks and the people with the top three highest scores, who will be awarded medals: "Gold Medal", "Sil 阅读全文

posted @ 2019-01-07 21:21 bernieloveslife 阅读(86) 评论(0) 推荐(0) 编辑

825. Friends Of Appropriate Ages

摘要： Some people will make friend requests. The list of their ages is given and ages[i] is the age of the ith person. Person A will NOT friend request pers 阅读全文

posted @ 2019-01-07 21:05 bernieloveslife 阅读(159) 评论(0) 推荐(0) 编辑

447. Number of Boomerangs

摘要： Given n points in the plane that are all pairwise distinct, a "boomerang" is a tuple of points (i, j, k) such that the distance between i and j equals 阅读全文

posted @ 2019-01-07 19:43 bernieloveslife 阅读(103) 评论(0) 推荐(0) 编辑

54. Spiral Matrix

摘要： Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. Example 1: Example 2: 很蠢得用了模拟法。。阅读全文

posted @ 2019-01-07 18:13 bernieloveslife 阅读(107) 评论(0) 推荐(0) 编辑

744. Find Smallest Letter Greater Than Target

摘要： Given a list of sorted characters letters containing only lowercase letters, and given a target letter target, find the smallest element in the list t 阅读全文

posted @ 2019-01-07 17:05 bernieloveslife 阅读(148) 评论(0) 推荐(0) 编辑

404. Sum of Left Leaves

摘要： Find the sum of all left leaves in a given binary tree. 阅读全文

posted @ 2019-01-07 16:58 bernieloveslife 阅读(117) 评论(0) 推荐(0) 编辑

606. Construct String from Binary Treedigui （递归）

摘要： You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be rep 阅读全文

posted @ 2019-01-07 16:28 bernieloveslife 阅读(119) 评论(0) 推荐(0) 编辑

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