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一、问题描述 Description: Reverse digits of an integer. For example: Input x = 123, return 321 Input x = -123, return -321二、解题报告本题是对一个整... 阅读全文
posted @ 2015-05-12 22:05
神奕
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一、问题描述 Description: The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to disp... 阅读全文
posted @ 2015-05-12 21:48
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一、问题描述 Description: Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, a... 阅读全文
posted @ 2015-05-12 21:22
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回文串，就是指正读和反读都一样的字符串，比如"level"或者"noon"等等。那么，如何求一个字符串的最长回文子串（Longest Palindromic Substring）？这里我们有多种解法。解法一：暴力法暴力解法就是直接枚举所有子串，对每个子串判断是否为回文，时间复杂度为... 阅读全文
posted @ 2015-05-12 20:50
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一、问题描述 Description: Given an array of n positive integers and a positive integer s, find the minimal length of a subarray of which the su... 阅读全文
posted @ 2015-05-12 12:50
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一、问题描述 Description: There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. T... 阅读全文
posted @ 2015-05-12 11:04
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一、问题描述 Description: Given a string, find the length of the longest substring without repeating characters. For example: For "abcab... 阅读全文
posted @ 2015-05-12 00:35
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