Yes Edit Distance is Most Efficient Algorithms Implemented So far and we all 
know this :P ,
 but Sukran is saying Trie ? seems odd initially but let me analyze it 
,Seems Good to me but we need to store length of strings in advance so that 
while inserting in trie wherever 1st mismatch occurs , we can just subtract 
current index from length of matching sting isn't it ?  for map & man assume 
map is already in trie , when we try to insert man in try mismatch occurs at 
index 2 & length of "man" is 3 so number of steps required to convert is 
1only 

Time Complexity for both search & insert both are constant using Trie O(K) 
where K is length of String which is again constant 

its an approach , may contains bug , let me know if missed something?

Shashank Mani
Computer Science
Birla Institute of Technology,Mesra

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