Sean_le - 博客园

2015年9月6日

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

posted @ 2015-09-06 16:08 Sean_le 阅读(201) 评论(0) 推荐(0)

[LeetCode]N-Queens II

摘要： N-Queens IIFollow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.和上题N-Queens几乎一样，... 阅读全文

posted @ 2015-09-06 00:00 Sean_le 阅读(126) 评论(0) 推荐(0)

2015年9月5日

[LeetCode]N-Queens

摘要： N-QueensThen-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.Given an integern, return all... 阅读全文

posted @ 2015-09-05 23:58 Sean_le 阅读(182) 评论(0) 推荐(0)

[LeetCode]Populating Next Right Pointers in Each Node II

摘要： Populating Next Right Pointers in Each Node IIFollow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any ... 阅读全文

posted @ 2015-09-05 14:51 Sean_le 阅读(140) 评论(0) 推荐(0)

[LeetCode]Populating Next Right Pointers in Each Node

摘要： Populating Next Right Pointers in Each NodeGiven a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLi... 阅读全文

posted @ 2015-09-05 13:20 Sean_le 阅读(118) 评论(0) 推荐(0)

2015年9月4日

[LeetCode]Binary Tree Postorder Traversal

摘要： Binary Tree Postorder TraversalGiven a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \... 阅读全文

posted @ 2015-09-04 23:42 Sean_le 阅读(114) 评论(0) 推荐(0)

[LeetCode]Binary Tree Inorder Traversal

摘要： Binary Tree Inorder TraversalGiven a binary tree, return theinordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ ... 阅读全文

posted @ 2015-09-04 23:38 Sean_le 阅读(119) 评论(0) 推荐(0)

[LeetCode]Binary Tree Preorder Traversal

摘要： Binary Tree Preorder TraversalGiven a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ ... 阅读全文

posted @ 2015-09-04 22:45 Sean_le 阅读(133) 评论(0) 推荐(0)

[LeetCode]Number of 1 Bits

摘要： Number of 1 BitsWrite a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as theHamming weight).For exampl... 阅读全文

posted @ 2015-09-04 22:28 Sean_le 阅读(87) 评论(0) 推荐(0)

[LeetCode]Best Time to Buy and Sell Stock IV

摘要： Best Time to Buy and Sell Stock IVSay you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the ... 阅读全文

posted @ 2015-09-04 20:19 Sean_le 阅读(119) 评论(0) 推荐(0)