随笔分类 -  ~~Leetcode~~

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Leetcode Single Number
摘要：Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complexity... 阅读全文
posted @ 2014-03-31 09:42 OpenSoucre 阅读(117) 评论(0) 推荐(0)
Leetcode Sort Colors
摘要：Given an array withnobjects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, wh... 阅读全文
posted @ 2014-03-28 15:29 OpenSoucre 阅读(175) 评论(0) 推荐(0)
Leetcode Plus One
摘要：Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit is at... 阅读全文
posted @ 2014-03-28 14:31 OpenSoucre 阅读(131) 评论(0) 推荐(0)
Leetcode Swap Nodes in Pairs
摘要：Given a linked list, swap every two adjacent nodes and return its head.For example,Given1->2->3->4, you should return the list as2->1->4->3.Your algor... 阅读全文
posted @ 2014-03-28 14:15 OpenSoucre 阅读(154) 评论(0) 推荐(0)
Leetcode Remove Nth Node From End of List
摘要：Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re... 阅读全文
posted @ 2014-03-27 23:48 OpenSoucre 阅读(120) 评论(0) 推荐(0)
leetcode Remove Duplicates from Sorted Array
摘要：Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length.Do not allocate extra space for a... 阅读全文
posted @ 2014-03-27 18:36 OpenSoucre 阅读(121) 评论(0) 推荐(0)
leetcode Remove Element
摘要：Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't mat... 阅读全文
posted @ 2014-03-27 18:10 OpenSoucre 阅读(186) 评论(0) 推荐(0)
leetcode Container With Most Water
摘要：Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ... 阅读全文
posted @ 2014-03-27 17:20 OpenSoucre 阅读(156) 评论(0) 推荐(0)
leetcode String to Integer (atoi)
摘要：Implementatoito convert a string to an integer.Hint:Carefully consider all possible input cases. If you want a challenge, please do not see below and ... 阅读全文
posted @ 2014-03-27 15:44 OpenSoucre 阅读(233) 评论(0) 推荐(0)
leetcode Palindrome Number
摘要：Determine whether an integer is a palindrome. Do this without extra space.题意是判断整数是不是回文串，第一个想法是将整数转换为字符串，但题目要求不能用额外的空间第二个想法是将数字反过来，比较两个数字是不是相等，但将两个数字反过... 阅读全文
posted @ 2014-03-27 14:04 OpenSoucre 阅读(129) 评论(0) 推荐(0)
leetcode Roman to Integer
摘要：Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.罗马数字共有7个，即I（1）、V（5）、X（10）、L（50）、C（100）、D（500... 阅读全文
posted @ 2014-03-27 11:47 OpenSoucre 阅读(221) 评论(0) 推荐(0)
leetcode ZigZag Conversion
摘要：The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font fo... 阅读全文
posted @ 2014-03-27 11:01 OpenSoucre 阅读(187) 评论(0) 推荐(0)
leetcode Reverse Integer
摘要：Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321此题主要考查几种特殊的前导0的情况，还有单独为0的情况注意利用c++中的reverse时要加命名空间，不然该函数会递归调用自己... 阅读全文
posted @ 2014-03-26 18:16 OpenSoucre 阅读(200) 评论(0) 推荐(0)
Leetcode Add Two Numbers
摘要：You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ... 阅读全文
posted @ 2014-03-26 17:29 OpenSoucre 阅读(185) 评论(0) 推荐(0)
Leetcode Median of Two Sorted Arrays
摘要：There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be ... 阅读全文
posted @ 2014-03-24 21:15 OpenSoucre 阅读(211) 评论(0) 推荐(0)
Leetcode Two Sum
摘要：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two nu... 阅读全文
posted @ 2014-03-24 00:37 OpenSoucre 阅读(197) 评论(0) 推荐(0)

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