InMobi Interview Question for Software Engineer / Developers

Team: InMobi
Country: India
Interview Type: In-Person

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There are two ways to do this : One is to create a HashMap of words after sorting them and then look up in the hashMap for those word whose anagrams are to be found.

The other way is to create a TRIE of all words and then look up in TRIE as follows :

1. Construct all permutations of the word. 
2. Look up in TRIE.

- Randomness June 28, 2012 | Flag Reply
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of 0 vote

1. Sort each word. (Consider as array of strings ) O(n L log L)
2. Sort the words O(nlog n)
3. Sort the given word O(Llog L)
4. Search of the sorted word in the list O(log n)

Total complexity: O(n(L log L + log n))

If we consider step 1,2 as preprocessing steps

O(LlogL + log n)

- Rajesh September 15, 2013 | Flag Reply

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