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 /\ /\
....
Solution Stats
Problem Comments
-
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
Problem Recent Solvers22
Suggested Problems
-
Sort a list of complex numbers based on far they are from the origin.
3794 Solvers
-
"Low : High - Low : High - Turn around " -- Create a subindices vector
264 Solvers
-
106 Solvers
-
211 Solvers
-
136 Solvers
More from this Author9
Problem Tags
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
Select web siteYou can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)