Problem 1510. Number of digits in an integer
Specifies how many digits in a given integer. Example: in=100 ==> out=3
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		2 Comments
		Jean-Marie Sainthillier
    	on 16 Sep 2014
	
	
  	Add tests with 100,1000...
Solutions with ceil are wrong.
		Dyuman Joshi
    	on 9 Jul 2022
	
	
  	Test suite has been modified to include negative integers as well.
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