Digits Multiplication

Quiz>

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juggler You are given a positive integer.

Your function should calculate the product of the digits excluding any zeroes.

 

For example:

The number given is 123405. The result will be 1*2*3*4*5=120 (don't forget to exclude zeroes).

 

Input:

A positive integer.

 

Output:

The product of the digits as an integer.

 

Example:

checkio(123405) == 120
checkio(999) == 729
checkio(1000) == 1
checkio(1111) == 1

 

How it is used: 

This task can teach you how to solve a problem with simple data type conversion.

 

Precondition: 

0 < number < 106

 

def checkio(number: int) -> int:
    
    return 1


if __name__ == '__main__':
    print('Example:')
    print(checkio(123405))
    
    # These "asserts" using only for self-checking and not necessary for auto-testing
    assert checkio(123405) == 120
    assert checkio(999) == 729
    assert checkio(1000) == 1
    assert checkio(1111) == 1
    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")

 

Solve>

1. 초기값 설정

def checkio(number: int):
    initial_value = 1

 

2. 0은 False 이외에는 True 조건을 판단 하여 초기값에 누적한다.

def checkio(number: int):
    for i in str(number):
        if int(i):
            initial_value *= int(i)

 

3. 초기값을 반환한다.

def checkio(number: int):
    return initial_value

 

Code>

def checkio(number: int):
    initial_value = 1

    for i in str(number):
        if int(i):
            initial_value *= int(i)

    return initial_value

 

Example>

if __name__ == '__main__':
    print('Example:')
    print(checkio(123405))

    # These "asserts" using only for self-checking and not necessary for auto-testing
    assert checkio(123405) == 120
    assert checkio(999) == 729
    assert checkio(1000) == 1
    assert checkio(1111) == 1
    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")

 

Result>

Example:

120

Coding complete? Click 'Check' to review your tests and earn cool rewards!