How should I practice Come Looking for the Smallest Num Which Must Be > Than a Specific Num. 🔎?

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Problem · Math

Come Looking for the Smallest Num Which Must Be > Than a Specific Num. 🔎

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Problem statement

To solve this problem, you gonna need to write up the func in the editor 👉

What you've been given: int Z

What your func is gonna do:

1. find the smallest num that is > than Z.

2. total of all the digits of the num you find must == 2 * (total of all digits of Z)

Memo 📝:

When solving this problem, you can mainly focus on correctness. As for your code performance, it would not be the focus this time 😉.

Function

gmsFindTheTinestGreaterThanANum(N: int) → int

Examples

Example 1

N = 10return = 11

As we can see, 11 is the smallest num that is > 10. What is the total sum of all digits of 10? The ans is 1 + 0 = 1... What is the total sum of all digits of 11? The ans is 1 + 1 = 2... 2 == 1 * 2, so 11 should be returned.

Example 2

N = 14return = 19

The total of all the digits of 19 (1 + 9 = 10) == 2 * total of digits of 14 (1 + 4 = 5)

Example 3

N = 99return = 9999

The sum of digits of 9999 (9 + 9 + 9 + 9 = 36) == total of digits of 99 (9 + 9 = 18).

Constraints

1 <= Z <= 500.