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Challenges

Comments on It's Hip to be Square

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It's Hip to be Square

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Challenge

A catalogue type challenge that simply asks: Given an integer n (where n>=0) as input return a truthy value if n is a perfect square or a falsey value if not.


Rules

  • You may take input by any reasonable, convenient means.
  • You need not handle inputs greater than what your chosen language can natively handle nor which would lead to floating point inaccuracies.
  • Output should be one of two consistent truthy/falsey values (e.g., true or false, 1 or 0) - truthy if the input is a perfect square, falsey if it's not.
  • This is code-golf so lowest byte count wins.

Test Cases

Input:  0
Output: true

Input:  1
Output: true

Input:  64
Output: true

Input:  88
Output: false

Input:  2147483647
Output: false
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Japt, 6 3 bytes

Cut in half thanks to Shaggy!

¬v1

Try it online!

Golfed thanks to Shaggy's interpreter auto-golf feature.

¬v1
¬      //Square root
 v1    //Is that an integer?
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1 comment thread

You can reduce that by half (7 comments)
You can reduce that by half
Shaggy‭ wrote about 3 years ago
user‭ wrote about 3 years ago

Thanks! (pad pad)

Shaggy‭ wrote about 3 years ago

While, technically, v1 does check if a number is an integer, what the v method actually does is check if the number it's applied to is divisible by the argument passed to it (which defaults to 2).

user‭ wrote about 3 years ago

I know, I read the docs right after you suggested the golf :)

Shaggy‭ wrote about 3 years ago

Hope you don't mind my suggested edit ;)

user‭ wrote about 3 years ago · edited about 3 years ago

A p p r o v e d i t !

Shaggy‭ wrote about 3 years ago

And looks like you figured out the link, too :)