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2018年8月29日

[LeetCode] 477. Total Hamming Distance 全部汉明距离

摘要： The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total 阅读全文

posted @ 2018-08-29 03:45 轻风舞动阅读(347) 评论(0) 推荐(0)

[LeetCode] 461. Hamming Distance 汉明距离

摘要： The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calcul 阅读全文

posted @ 2018-08-29 03:16 轻风舞动阅读(352) 评论(0) 推荐(0)

[LeetCode] 639. Decode Ways II 解码方法 II

摘要： A message containing letters from A-Z is being encoded to numbers using the following mapping way: Beyond that, now the encoded string can also contai 阅读全文

posted @ 2018-08-29 03:04 轻风舞动阅读(654) 评论(0) 推荐(0)

2018年8月28日

[LeetCode] 560. Subarray Sum Equals K 子数组和为K

摘要： Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k. Example 1: Note: 解法1: Br 阅读全文

posted @ 2018-08-28 09:33 轻风舞动阅读(1345) 评论(1) 推荐(0)

2018年8月25日

[LeetCode] 647. Palindromic Substrings 回文子字符串

摘要： Given a string, your task is to count how many palindromic substrings in this string. The substrings with different start indexes or end indexes are c 阅读全文

posted @ 2018-08-25 08:11 轻风舞动阅读(569) 评论(0) 推荐(0)

[LeetCode] 582. Kill Process 终止进程

摘要： Given n processes, each process has a unique PID (process id) and its PPID (parent process id). Each process only has one parent process, but may have 阅读全文

posted @ 2018-08-25 07:40 轻风舞动阅读(1559) 评论(0) 推荐(0)

[LeetCode] 262. Trips and Users 旅行和用户

摘要： The Trips table holds all taxi trips. Each trip has a unique Id, while Client_Id and Driver_Id are both foreign keys to the Users_Id at the Users tabl 阅读全文

posted @ 2018-08-25 07:12 轻风舞动阅读(597) 评论(0) 推荐(0)

[LeetCode] 259. 3Sum Smaller 三数之和较小值

摘要： Given an array of n integers nums and a target, find the number of index triplets i, j, k with 0 <= i < j < k < n that satisfy the condition nums[i] + 阅读全文

posted @ 2018-08-25 02:10 轻风舞动阅读(769) 评论(0) 推荐(0)

2018年8月22日

[LeetCode] 650. 2 Keys Keyboard 两键的键盘

摘要： Initially on a notepad only one character 'A' is present. You can perform two operations on this notepad for each step: Given a number n. You have to 阅读全文

posted @ 2018-08-22 08:54 轻风舞动阅读(318) 评论(0) 推荐(0)

[LeetCode] 651. 4 Keys Keyboard 四键的键盘

摘要： Imagine you have a special keyboard with the following keys: Key 1: (A): Print one 'A' on screen. Key 2: (Ctrl-A): Select the whole screen. Key 3: (Ct 阅读全文

posted @ 2018-08-22 08:47 轻风舞动阅读(731) 评论(0) 推荐(0)

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