Class Solution
java.lang.Object
g0901_1000.s0966_vowel_spellchecker.Solution
public class Solution
extends java.lang.Object
966 - Vowel Spellchecker.
Medium
Given a wordlist
, we want to implement a spellchecker that converts a query word into a correct word.
For a given query
word, the spell checker handles two categories of spelling mistakes:
- Capitalization: If the query matches a word in the wordlist ( case-insensitive ), then the query word is returned with the same case as the case in the wordlist.
- Example:
wordlist = ["yellow"]
,query = "YellOw"
:correct = "yellow"
- Example:
wordlist = ["Yellow"]
,query = "yellow"
:correct = "Yellow"
- Example:
wordlist = ["yellow"]
,query = "yellow"
:correct = "yellow"
- Example:
- Vowel Errors: If after replacing the vowels
('a', 'e', 'i', 'o', 'u')
of the query word with any vowel individually, it matches a word in the wordlist ( case-insensitive ), then the query word is returned with the same case as the match in the wordlist.- Example:
wordlist = ["YellOw"]
,query = "yollow"
:correct = "YellOw"
- Example:
wordlist = ["YellOw"]
,query = "yeellow"
:correct = ""
(no match) - Example:
wordlist = ["YellOw"]
,query = "yllw"
:correct = ""
(no match)
- Example:
In addition, the spell checker operates under the following precedence rules:
- When the query exactly matches a word in the wordlist ( case-sensitive ), you should return the same word back.
- When the query matches a word up to capitlization, you should return the first such match in the wordlist.
- When the query matches a word up to vowel errors, you should return the first such match in the wordlist.
- If the query has no matches in the wordlist, you should return the empty string.
Given some queries
, return a list of words answer
, where answer[i]
is the correct word for query = queries[i]
.
Example 1:
Input: wordlist = [“KiTe”,“kite”,“hare”,“Hare”], queries = [“kite”,“Kite”,“KiTe”,“Hare”,“HARE”,“Hear”,“hear”,“keti”,“keet”,“keto”]
Output: [“kite”,“KiTe”,“KiTe”,“Hare”,“hare”,““,””,“KiTe”,"",“KiTe”]
Example 2:
Input: wordlist = [“yellow”], queries = [“YellOw”]
Output: [“yellow”]
Constraints:
1 <= wordlist.length, queries.length <= 5000
1 <= wordlist[i].length, queries[i].length <= 7
wordlist[i]
andqueries[i]
consist only of only English letters.
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionjava.lang.String[]
spellchecker
(java.lang.String[] wordlist, java.lang.String[] queries) Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Details
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Solution
public Solution()
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Method Details
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spellchecker
public java.lang.String[] spellchecker(java.lang.String[] wordlist, java.lang.String[] queries)
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