LeetCode - 随笔分类(第2页) - 已停更

Lowest Common Ancestor of a Binary Search Tree

摘要：题目：Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST.According to thedefinition of LCA on Wikipedi... 阅读全文

posted @ 2015-11-05 09:04 已停更阅读(189) 评论(0) 推荐(0)

Excel Sheet Column Number

摘要：题目：Related to questionExcel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corresponding column number.For example: ... 阅读全文

posted @ 2015-11-04 20:50 已停更阅读(218) 评论(0) 推荐(0)

Product of Array Except Self

摘要：题目：Given an array ofnintegers wheren> 1,nums, return an arrayoutputsuch thatoutput[i]is equal to the product of all the elements ofnumsexceptnums[i].S... 阅读全文

posted @ 2015-11-04 14:34 已停更阅读(185) 评论(0) 推荐(0)

Contains Duplicate

摘要：题目：Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the ... 阅读全文

posted @ 2015-11-04 09:52 已停更阅读(191) 评论(0) 推荐(0)

Single Number III

摘要：题目：Given an array of numbersnums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two element... 阅读全文

posted @ 2015-11-03 15:07 已停更阅读(175) 评论(0) 推荐(0)

Best Time to Buy and Sell Stock IV

摘要：题目：Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complet... 阅读全文

posted @ 2015-11-03 13:55 已停更阅读(155) 评论(0) 推荐(0)

Best Time to Buy and Sell Stock III

摘要：题目： ay you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may com 阅读全文

posted @ 2015-11-03 13:54 已停更阅读(172) 评论(0) 推荐(0)

Best Time to Buy and Sell Stock II

摘要：题目：Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complet... 阅读全文

posted @ 2015-11-03 13:39 已停更阅读(149) 评论(0) 推荐(0)

Best Time to Buy and Sell Stock

摘要：题目：Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction ... 阅读全文

posted @ 2015-11-03 08:42 已停更阅读(198) 评论(0) 推荐(0)

Invert Binary Tree

摘要：题目：Invert a binary tree. 4 / \ 2 7 / \ / \1 3 6 9to 4 / \ 7 2 / \ / \9 6 3 1解析： 1 /** 2 * Definition for a bina... 阅读全文

posted @ 2015-11-02 21:09 已停更阅读(211) 评论(0) 推荐(0)

Move Zeroes

摘要：题目：Given an arraynums, write a function to move all0's to the end of it while maintaining the relative order of the non-zero elements.For example, giv... 阅读全文

posted @ 2015-11-02 14:37 已停更阅读(214) 评论(0) 推荐(0)

Same Tree

摘要：题目：Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurally identical... 阅读全文

posted @ 2015-11-02 11:12 已停更阅读(254) 评论(0) 推荐(0)

Delete Node in a Linked List

摘要：题目：Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.Supposed the linked list is1 -> 2 -> 3 ... 阅读全文

posted @ 2015-11-02 09:36 已停更阅读(208) 评论(0) 推荐(0)

Maximum Depth of Binary Tree

摘要：题目：Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest... 阅读全文

posted @ 2015-11-02 09:17 已停更阅读(162) 评论(0) 推荐(0)

Single Number

摘要：题目：Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complex... 阅读全文

posted @ 2015-11-02 08:41 已停更阅读(177) 评论(0) 推荐(0)

Add Digits

摘要：题目：Given a non-negative integernum, repeatedly add all its digits until the result has only one digit.For example:Givennum = 38, the process is like:3... 阅读全文

posted @ 2015-10-31 21:53 已停更阅读(179) 评论(0) 推荐(0)

Nim Game

摘要：题目：You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 s... 阅读全文

posted @ 2015-10-30 15:57 已停更阅读(157) 评论(0) 推荐(0)

写在前面

摘要：今天开始刷LeeCode，开此随笔以备总结，2015.10.30，做题顺序以通过率正序排序阅读全文

posted @ 2015-10-30 14:50 已停更阅读(151) 评论(0) 推荐(0)

随笔分类 - LeetCode