Problem 42800. house of cards
How many cards do one need to build a house of cards with n stages? Short explanation:
/\ 2 cards for 1 stage
/_\ 7 cards for 2 stages /\ /\
....
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2 Comments
Jan Orwat
on 15 Apr 2016
@Thomas, the Test Suite is broken. Please provide "x" or replace it with "n" in tests.
Thomas Bischoff
on 15 Apr 2016
Sorry for mistake! You are right! thanks
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