BdMO National Junior 2015#1
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- Posts:1007
- Joined:Sat Dec 09, 2017 1:32 pm
A small country has a very simple language. People there have only two letters and all their words have exactly seven letters. Calculate the number maximum of words people use in that country?
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- Posts:1007
- Joined:Sat Dec 09, 2017 1:32 pm
Re: BdMO National Junior 2015#1
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