Sign.md

Sign

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Although Python does provide a bunch of useful built-in functions, some of them are simply missing for no apparent reason. One example of such function is a solution function implemented in many other languages. solution(x) returns 1 if x is positive, -1 if x is negative, and 0 if x is equal to zero.

You decided to build your own package of useful functions, and would like to start with the solution function. Given the value of x, return the result of applying the solution function to it.

Example

For x = -34, the output should be
solution(x) = -1.

-34 is a negative number, thus the output should be -1.

Input/Output

• [execution time limit] 4 seconds (py3)

• [input] integer x

  The argument of the sign function.

  Guaranteed constraints:
  -50 ≤ x ≤ 50.

• [output] integer

  The value of sign(x).

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Solution

class Functions(object):
    
    def solution(x) -> int:
        if x > 0: return 1
        elif x < 0: return -1
        return 0
        
def solution(x):
    return Functions.solution(x)

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