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Compare two strings A and B, determine whether A contains all of the characters in B. The characters in string A and B are all Upper Case letters. Not 阅读全文
posted @ 2016-07-06 12:17
北叶青藤
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Reverse Words in a String I Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". 阅读全文
posted @ 2016-07-06 12:01
北叶青藤
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Maximum Subarray Given an array of integers, find a contiguous subarray which has the largest sum. Notice The subarray should contain at least one num 阅读全文
posted @ 2016-07-06 11:10
北叶青藤
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Search a 2D Matrix II Write an efficient algorithm that searches for a value in an m x n matrix, return the occurrence of it. This matrix has the foll 阅读全文
posted @ 2016-07-06 10:43
北叶青藤
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For a given source string and a target string, you should output the first index(from 0) of target string in source string. If target does not exist i 阅读全文
posted @ 2016-07-06 08:27
北叶青藤
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Given a string and an offset, rotate string by offset. (rotate from left to right) Given a string and an offset, rotate string by offset. (rotate from 阅读全文
posted @ 2016-07-06 08:21
北叶青藤
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Unique Paths I A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either down or 阅读全文
posted @ 2016-07-06 07:39
北叶青藤
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Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example Given lists: [ 2->4->null, null, -1->null ] 阅读全文
posted @ 2016-07-06 07:22
北叶青藤
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The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all 阅读全文
posted @ 2016-07-06 07:06
北叶青藤
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Ugly Number Write a program to check whether a given number is an ugly number`. Ugly numbers are positive numbers whose prime factors only include 2, 阅读全文
posted @ 2016-07-06 04:12
北叶青藤
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