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Given a pattern and a string str, find if str follows the same pattern. Here follow means a full match, such that there is a bijection between a lette 阅读全文
posted @ 2017-10-23 20:58
daniel456
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Given two strings s and t which consist of only lowercase letters. String t is generated by random shuffling string s and then add one more letter at 阅读全文
posted @ 2017-10-23 20:52
daniel456
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Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This 阅读全文
posted @ 2017-10-23 20:49
daniel456
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Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only and the 阅读全文
posted @ 2017-10-23 20:45
daniel456
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Given n points in the plane that are all pairwise distinct, a "boomerang" is a tuple of points (i, j, k) such that the distance between iand j equals 阅读全文
posted @ 2017-10-23 20:15
daniel456
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ou are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ver 阅读全文
posted @ 2017-10-23 20:08
daniel456
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Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. Examp 阅读全文
posted @ 2017-10-23 20:05
daniel456
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Given two strings s and t, determine if they are isomorphic. Two strings are isomorphic if the characters in s can be replaced to get t. All occurrenc 阅读全文
posted @ 2017-10-23 20:00
daniel456
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You are given a data structure of employee information, which includes the employee's unique id, his importance value and his directsubordinates' id. 阅读全文
posted @ 2017-10-23 19:49
daniel456
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Given two arrays, write a function to compute their intersection. 题目含义z:计算两个数组的交集,重复的数字要保留 阅读全文
posted @ 2017-10-23 13:55
daniel456
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