杨领well

LeetCode

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全部文章 / LeetCode （共151篇）

LeetCode: 900. RLE Iterator

LeetCode: 900. RLE Iterator 题目描述 Write an iterator that iterates through a run-length encoded sequence. The iterator is initialized by RLEIterator(...

2018-09-09

0 538

LeetCode:Weekly Contest 101

LeetCode:Weekly Contest 101 题目描述 1. LeetCode: 900. RLE Iterator 题解签到题。每次调用 next(n) 函数时，判断当前队首的元素的数量和 n 的大小关系。如果队首的元素的数量大于等于 n，则将其数量减少 n ...

2018-09-09

0 502

LeetCode: 198. House Robber

LeetCode: 198. House Robber 解题思路 You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stash...

2018-09-08

0 477

LeetCode: 197. Rising Temperature

LeetCode: 197. Rising Temperature 题目描述 Given a Weather table, write a SQL query to find all dates’ Ids with higher temperature compared to its previ...

2018-09-07

0 493

LeetCode: 196. Delete Duplicate Emails

LeetCode: 196. Delete Duplicate Emails 题目描述 Write a SQL query to delete all duplicate email entries in a table named Person, keeping only unique ema...

2018-09-06

0 454

LeetCode: 194. Transpose File

LeetCode: 194. Transpose File 题目描述 Given a text file file.txt, transpose its content. You may assume that each row has the same number of columns a...

2018-09-04

0 506

LeetCode: 193. Valid Phone Numbers

LeetCode: 193. Valid Phone Numbers 题目描述 Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script...

2018-09-03

0 469

LeetCode: 899. Orderly Queue

LeetCode: 899. Orderly Queue 题目描述 A string S of lowercase letters is given. Then, we may make any number of moves. In each move, we choose one of t...

2018-09-02

0 492

LeetCode: Weekly Contest 100

LeetCode: Weekly Contest 100 题目描述 1. LeetCode: 896. Monotonic Array 题解遍历数组，标记升序/降序情况。当发现后面的元素与前面的标记冲突时，则返回 false, 否则返回 true。 2. LeetCode: 89...

2018-09-02

0 421

LeetCode: 192. Word Frequency

LeetCode: 192. Word Frequency 题目描述 Write a bash script to calculate the frequency of each word in a text file words.txt. For simplicity sake, you m...

2018-09-01

0 491