Tudor is building a pen for his goats.
goats need a rectangular pen with area exactly
square meters to roam.
Tudor needs to buy some fencing to demarcate the pen. The fencing comes in one meter units, so the rectangular pen must have side lengths that are an integer number of meters.
Tudor will randomly select, among all such possible rectangular pens with area square meters, one pen to build.
Compute the minimum amount of fencing, in meters, that Tudor needs to buy to guarantee that he can build the randomly selected pen.
Constraints
Input Specification
The first and only line of input contains a single positive integer, .
Output Specification
Output the minimum amount of meters of fencing Tudor must buy.
Sample Input
1
Sample Output
4
Comments
TIL that I can't read.
same. I thought you were supposed to output the minimum fencing. Oops.
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It doesn't matter if N is a perfect square or not, all areas can be represented with at least 1 rectangular pen.
big bruh moment
Why am I getting
Presentation Error, check your whitespace
?Edit: I know it means that I have either too many whitespaces or I'm missing some. But I don't have any whitespaces in my output, and I don't think we need to in this question?
If you look at the contest page, you will see that it states the following:
The contest will follow the standard convention of having all lines terminate in a
\n
character.