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Discussion of Problem 1478. Spy Satellites

Help!!!!
Posted by Rudolf 19 Jun 2008 16:37
The answer for test

4
1 1
1 4
1 7
1 8

will be

    1111

or

    1011

???????????
Re: Help!!!!
Posted by Denis Koshman 26 Aug 2008 04:57
1011

Distance must be strictly less