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Dictionary search algorithm for string containing letters in alphabet


Forum Post 8 Answers Dictionary search algorithm for string containing letters in alphabet

Need help/solution for the following interview question: From a folder containing several files whose contents are the english dictionary, return a string or strings that between them, contain all 26 letters of the alphabet. Improve this for speed. Alternate ways of doing this?

All help is appreciated! Thanks very much!

 - ron.oruganti July 26, 2012 | Flag |


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Does it have to be a minimal set of strings?

- Anonymous July 28, 2012 | Flag Reply
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Do these strings have a length limitation? Do they have to be whole words?

- Anonymous July 28, 2012 | Flag
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They have to be whole words and the solution involves the use of a Trie as I found out.

- ron.oruganti July 28, 2012 | Flag Reply
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Well we'd need more info on the question to say more about it. What's to stop you from including every word? Does it have to be a minimal set of words?

- Anonymous July 30, 2012 | Flag
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I guess I should have included some constraints in the beginning....sorry about that. They need to be 26 words or fewer. They can be unrelated words. And as I found out this problem relates to returning pangrams. I'm still looking/wanting help though...haven't reached a solution.

- ron.oruganti July 30, 2012 | Flag Reply
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If all you need is to use 26 words or fewer, take the first word containing "a", then take the first after that containing "b", etc.

Minimal set of words, on the other hand, seems to be hard.

- Anonymous July 31, 2012 | Flag
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If all you need is to use 26 words or fewer, take the first word containing "a", then take the first after that containing "b", etc.

Minimal set of words, on the other hand, seems to be hard.

- Anonymous July 31, 2012 | Flag
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Hi folks,

Did any one got solution for one. I m looking for the same. please help!!

- jon January 05, 2013 | Flag Reply




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