Lexicographical精品文章

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  leetcode386. Lexicographical Numbers

  題目要求 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 評論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 我覺得雖然在LC里分類是Easy，但其實(shí)是一道難題。思路如下：搞一個(gè)哈希表，...

  lucas 2019-08-14 16:23 評論0 收藏0
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  九宮格鍵盤輸入

  ...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 評論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 評論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 復(fù)雜度...

  tomorrowwu 2019-08-14 15:04 評論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 評論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 評論0 收藏0
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  [Leetcode] Letter Combinations of a Phone Number 電

  ...bd, be, bf, cd, ce, cf]. Note: Although the above answer is in lexicographical order, your answer could be in any order you want. 深度優(yōu)先搜索 復(fù)雜度 時(shí)間 O(N) 空間 O(N) 遞歸?？臻g 思路 首先建一個(gè)表，來映射號碼和字母的關(guān)系。然后對號碼進(jìn)行深......

  fxp 2019-08-14 12:34 評論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. 也就是說，將數(shù)字對應(yīng)的字母的排列組合的的所有可能結(jié)果都枚舉出來，順序不唯一。 leetcode給這道題目加了一個(gè)標(biāo)簽...

  snowell 2019-08-14 18:09 評論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 每個(gè)字母只留一個(gè)，而且保證字典序最小。 ...

  novo 2019-08-14 18:01 評論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 這道題可以采用G...

  gaosboy 2019-08-14 15:08 評論0 收藏0