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MagicDict.py
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MagicDict.py
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# Problem: https://leetcode.com/problems/implement-magic-dictionary/description/
class MagicDictionary(object):
def __init__(self):
"""
Initialize your data structure here.
"""
self.dictMap = {}
def buildDict(self, dict):
"""
Build a dictionary through a list of words
:type dict: List[str]
:rtype: void
"""
for word in dict:
if len(word) not in self.dictMap:
self.dictMap[len(word)] = []
self.dictMap[len(word)].append(word)
def search(self, word):
"""
Returns if there is any word in the trie that equals to the given word after modifying exactly one character
:type word: str
:rtype: bool
"""
if len(word) not in self.dictMap:
return False
possibleMatches = self.dictMap[len(word)]
for possibleMatch in possibleMatches:
mismatch = 0
for m, n in zip(word, possibleMatch):
mismatch += 1 if m != n else 0
if mismatch == 1:
return True
return False
# Your MagicDictionary object will be instantiated and called as such:
# obj = MagicDictionary()
# obj.buildDict(dict)
# param_2 = obj.search(word)