Lexicographical

Lexicographical精品文章

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  leetcode386. Lexicographical Numbers

  题目要求 Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input s...

  cppprimer 2019-08-19 11:33 评论0 收藏0
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  [LintCode] Permutation Index I & Permutation I

  ...d its index in all the permutations of these numbers, which are ordered in lexicographical order. The index begins at 1. Example Given [1,2,4], return 1. Note 我觉得虽然在LC里分类是Easy，但其实是一道难题。思路如下：搞一个哈希表，...

  lucas 2019-08-14 16:23 评论0 收藏0
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  九宫格键盘输入

  ...e telephone buttons) is given below. Note:Although the above answer is in lexicographical order, your answer could be in any order you want. example 1 Input:Digit string 23 Output: [ad, ae, af, bd...

  Xufc 2019-07-25 12:04 评论0 收藏0
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  [LintCode/LeetCode] Remove Duplicate Letters

  ...pear once and only once. You must make sure your result is the smallest in lexicographical order among all possible results. Example Given bcabcReturn abc Given cbacdcbcReturn acdb Solution public ...

  wanghui 2019-08-15 18:01 评论0 收藏0
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  LeetCode[316] Remove Duplicate Letters

  ...pear once and only once. You must make sure your result is the smallest in lexicographical order among all possible results. Example:Given bcabcReturn abc Given cbacdcbcReturn acdb ascii array 复杂度...

  tomorrowwu 2019-08-14 15:04 评论0 收藏0
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  [LeetCode] Longest Word in Dictionary

  ...s more than one possible answer, return the longest word with the smallest lexicographical order. If there is no answer, return the empty string.Example 1:Input: words = [w,wo,wor,worl, world] Outp...

  econi 2019-08-19 11:06 评论0 收藏0
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  [LeetCode] 953. Verifying an Alien Dictionary

  ...der of the alphabet, return true if and only if the given words are sorted lexicographicaly in this alien language. Example 1: Input: words = [hello,leetcode], order = hlabcdefgijkmnopqrstuvwxyzOut...

  ghnor 2019-08-16 13:57 评论0 收藏0
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  [Leetcode] Letter Combinations of a Phone Number 电

  ...bd, be, bf, cd, ce, cf]. Note: Although the above answer is in lexicographical order, your answer could be in any order you want. 深度优先搜索 复杂度 时间 O(N) 空间 O(N) 递归栈空间 思路 首先建一个表，来映射号码和字母的关系。然后对号码进行深......

  fxp 2019-08-14 12:34 评论0 收藏0
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  leetcode17 Letter Combinations of a Phone Number

  ...bd, be, bf, cd, ce, cf]. Note: Although the above answer is in lexicographical order, your answer could be in any order you want. 也就是说，将数字对应的字母的排列组合的的所有可能结果都枚举出来，顺序不唯一。 leetcode给这道题目加了一个标签...

  snowell 2019-08-14 18:09 评论0 收藏0
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  316. Remove Duplicate Letters and 402. Remove K Di

  ...ear once and only once. You must make sure your result is the smallest in lexicographical order among all possible results. Given bcabc Return abc Given cbacdcbc Return acdb 每个字母只留一个，而且保证字典序最小。 ...

  novo 2019-08-14 18:01 评论0 收藏0
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  [LeetCode]Remove Duplicate Letters

  ...pear once and only once. You must make sure your result is the smallest in lexicographical order among all possible results. Example:Given bcabcReturn abc Given cbacdcbcReturn acdb 分析 方法一 这道题可以采用G...

  gaosboy 2019-08-14 15:08 评论0 收藏0