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RSS订阅原创 LeetCode笔记：（Java） 9. Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space.
2017-09-14 21:04:25
177
原创 LeetCode笔记：（MySQL） 182. Duplicate Emails
Write a SQL query to find all duplicate emails in a table named Person.
2017-08-10 19:33:30
254
原创 Leetcode笔记：（MySQL）181. Employees Earning More Than Their Managers
The Employee table holds all employees including their managers. Every employee has an Id, and there is also a column for the manager Id.
2017-08-10 17:43:21
248
原创 LeetCode笔记：278. First Bad Version
Question: （谷歌翻译） You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality check. Since each version is deve
2017-02-13 02:51:51
134
原创 LeetCode笔记：1. Two Sum
Question: （谷歌翻译） Given an array of integers, return indices of the two numbers such that they add up to a specific target.You may assume that each input would have exactly one solution, and you may n
2017-02-09 17:46:14
139
原创 LeetCode笔记：125. Valid Palindrome
Question: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, “A man, a plan, a canal: Panama” is a palindrome. “race a c
2017-02-09 01:11:42
184
原创 LeetCode笔记：389. Find the Difference
Question: Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter at a random position. Find the letter that
2017-02-06 01:52:13
132
原创 LeetCode笔记：183. Customers Who Never Order
Question: Suppose that a website contains two tables, the Customers table and the Orders table. Write a SQL query to find all customers who never order anything.
2017-01-05 02:37:28
197
原创 LeetCode笔记：349. Intersection of Two Arrays
Question: Given two arrays, write a function to compute their intersection.
2016-12-20 23:24:59
160
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