# Draw a Fibonacci series of squares! [closed]

### Introduction

To draw a Fibonacci series of square, you start by drawing a one-unit square:

 _
|_|


Then another one to the left:

 _ _
|_|_|


Then a two-unit one on top:

 _ _
|   |
|_ _|
|_|_|


Then a three-unit one on the right:

 _ _ _ _ _
|   |     |
|_ _|     |
|_|_|_ _ _|


Then a five-unit one on the bottom:

 _ _ _ _ _
|   |     |
|_ _|     |
|_|_|_ _ _|
|         |
|         |
|         |
|         |
|_ _ _ _ _|


etc.

Given N squares to print (0 <= N <= 20), print the figure that contains N squares. For example, if N was 4, it should print:

 _ _ _ _ _
|   |     |
|_ _|     |
|_|_|_ _ _|


Note that it does not have to exactly follow this format, just something that represents the same figure.

Since it has four squares in it:

     3
_v_ _ _ _
|   |     |
|_ _|     |< 4
2 >|_|_|_ _ _|
^
1


Remember, this is , so the code with the smallest number of bytes wins.

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• Up to F(50), really? That would be ~12.5 billion character wide. – Arnauld Oct 10 '16 at 0:14
• Does the output have to follow the cumbersome I/O formats (i.e. is this an ASCII art challenge?), or could it use built-in graphics? – JungHwan Min Oct 10 '16 at 0:58
• "highly discouraged" doesn't mean anything - builtins are either allowed or not. You also don't state which builtins you mean - just Fibonacci square drawing builtins? Fibonacci builtins in general? And it does not have to exactly follow this format, just something that represents the same figure isn't really descriptive. You need to be more precise about exactly what is valid and what isn't. Once again, the Sandbox could've helped you work out problems before posting this to main. 5 hours is not nearly enough time in the Sandbox to get feedback. – user45941 Oct 10 '16 at 2:32
• Please exclude the N=0 case since it almost certainly has to be handled as an (uninteresting) exception – Ton Hospel Oct 10 '16 at 13:23
• Would OOOOOO\nO OOO\nO O O\nOOOOOO\n (replace \n by real newlines) be a valid result for the n=4 case ? Different orientation, no attempt to use nice box characters. (It can be converted to the example format by replaceing each O by _| and replacing spurious characters, but that takes quite a bit of code) – Ton Hospel Oct 10 '16 at 16:02