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全部文章（共155篇）

176. Second Highest Salary

Write a SQL query to get the second highest salary from the Employee table. +----+--------+ | Id | Salary | +----+--------+ | 1 | 100 | | 2 | 20...

LeetCode SQL

2019-04-28

0 400

175. Combine Two Tables

Table: Person +-------------+---------+ | Column Name | Type | +-------------+---------+ | PersonId | int | | FirstName | varchar | | Las...

2019-04-28

0 453

164. Maximum Gap

待续。。。太难了。。。

LeetCode

2019-04-28

0 357

162. Find Peak Element

A peak element is an element that is greater than its neighbors. Given an input array nums, where nums[i] ≠ nums[i+1], find a peak element and return...

LeetCode

2019-04-28

0 498

148. Sort List

Sort a linked list in O(n log n) time using constant space complexity. Example 1: Input: 4->2->1->3 Output: 1->2->3->4 Example 2: ...

LeetCode

2019-04-28

0 440

140. Word Break II

Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, add spaces in s to construct a sentence where each word is ...

LeetCode

2019-04-27

0 389

139. Word Break

Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequ...

LeetCode

2019-04-27

0 544

134. Gas Station

There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it cos...

2019-04-24

0 437

133. Clone Graph

Given a reference of a node in a connected undirected graph, return a deep copy (clone) of the graph. Each node in the graph contains a val (int) and ...

LeetCode

2019-04-24

0 434

132. Palindrome Partitioning II

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitionin...

LeetCode

2019-04-24

0 385