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Discussion of Problem 1738. Computer Security

explain the sample, please
Posted by melkiy 1 Nov 2009 14:08
All the numbers 1,2,3 are similar. For i=1 .. 4 there IS at least 1 pair of employees whose pin-codes differ at i-th position. Why there are zeros in the output?

Edited by author 01.11.2009 14:09
Re: explain the sample, please
Posted by melkiy 1 Nov 2009 14:43
Sorry, i'm wrong.
"i" and "i-th" make large difference