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Design and implement a TwoSum class. It should support the following operations:addandfind.add- Add the number to an internal data structure.find- Fin... 阅读全文
posted @ 2015-02-10 14:06
Vae永Silence
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Given an array of integers that is alreadysorted in ascending order, find two numbers such that they add up to a specific target number.The function t... 阅读全文
posted @ 2015-02-10 14:03
Vae永Silence
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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 @ 2015-02-10 14:00
Vae永Silence
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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 @ 2015-02-10 13:59
Vae永Silence
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Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo... 阅读全文
posted @ 2015-02-10 13:58
Vae永Silence
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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 @ 2015-02-10 13:57
Vae永Silence
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Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa... 阅读全文
posted @ 2015-02-10 13:55
Vae永Silence
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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 @ 2015-02-10 13:54
Vae永Silence
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Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321click to show spoilers.Have you thought about this?Here are som... 阅读全文
posted @ 2015-02-10 13:53
Vae永Silence
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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 @ 2015-02-10 13:51
Vae永Silence
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