随笔分类 -  leetcode

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leetcode------Plus One
摘要：标题：Plus One通过率：31.1%难度：简单Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the mos... 阅读全文
posted @ 2015-01-16 14:47 pku_smile 阅读(226) 评论(0) 推荐(0)
leetcode------Min Stack
摘要：标题：Min Stack通过率：15.2%难度：简单Design a stack that supports push, pop, top, and retrieving the minimum element in constant time.push(x) -- Push element x o... 阅读全文
posted @ 2015-01-16 14:39 pku_smile 阅读(171) 评论(0) 推荐(0)
leetcode------Binary Tree Level Order Traversal
摘要：标题：Binary Tree Level Order Traversal通过率：29.9%难度：简单Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from left to right, l... 阅读全文
posted @ 2015-01-15 11:27 pku_smile 阅读(136) 评论(0) 推荐(0)
leetcode------Compare Version Numbers
摘要：标题：Compare Version Numbers通过率：14.8%难度：简单Compare two version numbersversion1andversion1.Ifversion1>version2return 1, ifversion1len2 ? len1:len2; 9 ... 阅读全文
posted @ 2015-01-14 11:25 pku_smile 阅读(190) 评论(0) 推荐(0)
leetcode------Majority Element
摘要：标题：Majority Element通过率：33.8%难度：简单Given an array of sizen, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋... 阅读全文
posted @ 2015-01-14 11:17 pku_smile 阅读(176) 评论(0) 推荐(0)
leetcode------Pascal's Triangle
摘要：标题：Pascal's Triangle通过率：30.7%难度：简单GivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Return[ [1], [1,1], ... 阅读全文
posted @ 2015-01-14 10:05 pku_smile 阅读(163) 评论(0) 推荐(0)
leetcode------Excel Sheet Column Number
摘要：标题：Excel Sheet Column Number通过率：39.8%难度：简单Related to questionExcel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corr... 阅读全文
posted @ 2015-01-14 10:00 pku_smile 阅读(154) 评论(0) 推荐(0)
leetcode------Longest Common Prefix
摘要：这一段一直忙考试，一直没有刷题，今天上来刷三道题感觉生疏起来了。。罪过啊。刷到今天了。。还是没有写算法的感觉，还是写代码太少了。java的用法又忘记了很多。java上手后就要开始写python了，反正现在就是没有写代码的感觉。题目：Longest Common Prefix通过率：26.5%难度：简... 阅读全文
posted @ 2015-01-13 11:54 pku_smile 阅读(176) 评论(0) 推荐(0)
leetcode------Merge Sorted Array
摘要：标题：Merge Sorted Array通过率：31.1%难度：简单Given two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough s... 阅读全文
posted @ 2014-12-21 22:31 pku_smile 阅读(150) 评论(0) 推荐(0)
leetcode------Symmetric Tree
摘要：标题：Symmetric Tree通过率：31.1%难度：简单Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary ... 阅读全文
posted @ 2014-12-21 21:57 pku_smile 阅读(172) 评论(0) 推荐(0)
leetcode------Remove Duplicates from Sorted Array
摘要：标题：Remove Duplicates from Sorted Array通过率：31.9%难度简单Given a sorted array, remove the duplicates in place such that each element appear onlyonceand retu... 阅读全文
posted @ 2014-12-18 13:54 pku_smile 阅读(137) 评论(0) 推荐(0)
leetcode------Balanced Binary Tree
摘要：标题：Balanced Binary Tree通过率：32.3%难度：简单Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is define... 阅读全文
posted @ 2014-12-18 13:45 pku_smile 阅读(143) 评论(0) 推荐(0)
leetcode------Maximum Depth of Binary Tree
摘要：标题：Maximum Depth of Binary Tree通过率：44.2%难度：简单Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest pa... 阅读全文
posted @ 2014-12-18 13:34 pku_smile 阅读(166) 评论(0) 推荐(0)
leetcode------Remove Element
摘要：标题：Remove Element通过率：32.6%难度：简单Given an array and a value, remove all instances of that value in place and return the new length.The order of elements... 阅读全文
posted @ 2014-12-17 11:05 pku_smile 阅读(93) 评论(0) 推荐(0)
leetcode------Merge Two Sorted Lists
摘要：标题：Merge Two Sorted Lists通过率：33.1%难度:简单Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the... 阅读全文
posted @ 2014-12-17 10:53 pku_smile 阅读(149) 评论(0) 推荐(0)
leetcode------Climbing Stairs
摘要：标题：Climbing Stairs通过率：34%难度：简单You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how ma... 阅读全文
posted @ 2014-12-17 10:40 pku_smile 阅读(113) 评论(0) 推荐(0)
leetcode------Remove Duplicates from Sorted List
摘要：标题：Remove Duplicates from Sorted List通过率：34.5难度：简单Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example... 阅读全文
posted @ 2014-12-15 21:58 pku_smile 阅读(164) 评论(0) 推荐(0)
leetcode------Roman to Integer
摘要：标题：Roman to Integer通过率：34.1%难度：简单Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.这个题整体不是很难，就... 阅读全文
posted @ 2014-12-15 21:37 pku_smile 阅读(125) 评论(0) 推荐(0)
leetcode------String to Integer (atoi)
摘要：标题：String to Integer (atoi)通过率：13.8难度：简单Implementatoito convert a string to an integer.Hint:Carefully consider all possible input cases. If you want a... 阅读全文
posted @ 2014-12-12 23:09 pku_smile 阅读(133) 评论(0) 推荐(0)
leetcode------Reverse Integer
摘要：标题：Reverse Integer正确率：34.8%难度简单Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321Have you thought about this?Here... 阅读全文
posted @ 2014-12-12 22:56 pku_smile 阅读(129) 评论(0) 推荐(0)

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