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Discussion of Problem 1761. Binary Palindrome

I dont understand the probem..
Posted by Gio Pataraia [Tbilisi SU] 25 Apr 2011 15:54
how they got 11011100101 from 101?
Re: I dont understand the probem..
Posted by AterLux 25 Apr 2011 20:38
they "Write the integers from 1 to 101 in binary notation successively from left to right"
i.e

1 10 11 100 101
Re: I dont understand the probem..
Posted by Gio Pataraia [Tbilisi SU] 27 Apr 2011 04:14
thanks,understand :))
but i see that such given string will be very anormous when n is also big..
how this problem can be solved? i have no idea :( for such a big n_s :((