Beserious - 博客园

2017年7月27日

摘要： Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n 阅读全文

posted @ 2017-07-27 17:04 Beserious 阅读(145) 评论(0) 推荐(0) 编辑

461. Hamming Distance

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 @ 2017-07-27 12:45 Beserious 阅读(186) 评论(0) 推荐(0) 编辑

2017年7月26日

160. Intersection of Two Linked Lists

摘要： Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: begin to in 阅读全文

posted @ 2017-07-26 13:28 Beserious 阅读(134) 评论(0) 推荐(0) 编辑

169. Majority Element

摘要： Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the 阅读全文

posted @ 2017-07-26 12:14 Beserious 阅读(128) 评论(0) 推荐(0) 编辑

171. Excel Sheet Column Number

摘要： Related to question Excel Sheet Column Title Given a column title as appear in an Excel sheet, return its corresponding column number. For example: 从2 阅读全文

posted @ 2017-07-26 08:07 Beserious 阅读(181) 评论(0) 推荐(0) 编辑

168. Excel Sheet Column Title

摘要： Given a positive integer, return its corresponding column title as appear in an Excel sheet. For example: 其实类似26进制数阅读全文

posted @ 2017-07-26 07:58 Beserious 阅读(133) 评论(0) 推荐(0) 编辑

2017年7月25日

189. Rotate Array

摘要： Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4]. Not 阅读全文

posted @ 2017-07-25 18:35 Beserious 阅读(103) 评论(0) 推荐(0) 编辑

172. Factorial Trailing Zeroes

摘要： Given an integer n, return the number of trailing zeroes in n!. Note: Your solution should be in logarithmic time complexity. 求n得阶层，末尾0的个数老问题了，统计2,5的阅读全文

posted @ 2017-07-25 15:21 Beserious 阅读(71) 评论(0) 推荐(0) 编辑

176. Second Highest Salary

摘要： Write a SQL query to get the second highest salary from the Employee table. For example, given the above Employee table, the query should return 200 a 阅读全文

posted @ 2017-07-25 12:28 Beserious 阅读(115) 评论(0) 推荐(0) 编辑

167. Two Sum II - Input array is sorted (二分ortwo-pointer)

摘要： Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function 阅读全文

posted @ 2017-07-25 11:54 Beserious 阅读(119) 评论(0) 推荐(0) 编辑