单词替换

648. 单词替换 (Medium)

在英语中,我们有一个叫做 词根(root)的概念,它可以跟着其他一些词组成另一个较长的单词——我们称这个词为 继承词(successor)。例如,词根an,跟随着单词 other(其他),可以形成新的单词 another(另一个)。

现在,给定一个由许多词根组成的词典和一个句子。你需要将句子中的所有继承词词根替换掉。如果继承词有许多可以形成它的词根,则用最短的词根替换它。

你需要输出替换之后的句子。

 

示例 1:

输入:dictionary = ["cat","bat","rat"], sentence = "the cattle was rattled by the battery"
输出:"the cat was rat by the bat"

示例 2:

输入:dictionary = ["a","b","c"], sentence = "aadsfasf absbs bbab cadsfafs"
输出:"a a b c"

示例 3:

输入:dictionary = ["a", "aa", "aaa", "aaaa"], sentence = "a aa a aaaa aaa aaa aaa aaaaaa bbb baba ababa"
输出:"a a a a a a a a bbb baba a"

示例 4:

输入:dictionary = ["catt","cat","bat","rat"], sentence = "the cattle was rattled by the battery"
输出:"the cat was rat by the bat"

示例 5:

输入:dictionary = ["ac","ab"], sentence = "it is abnormal that this solution is accepted"
输出:"it is ab that this solution is ac"

 

提示:

  • 1 <= dictionary.length <= 1000
  • 1 <= dictionary[i].length <= 100
  • dictionary[i] 仅由小写字母组成。
  • 1 <= sentence.length <= 10^6
  • sentence 仅由小写字母和空格组成。
  • sentence 中单词的总量在范围 [1, 1000] 内。
  • sentence 中每个单词的长度在范围 [1, 1000] 内。
  • sentence 中单词之间由一个空格隔开。
  • sentence 没有前导或尾随空格。

相关话题

[字典树] [哈希表]

相似题目

  1. 实现 Trie (前缀树) (Medium)

解法