How should I practice Doing Smart Work?

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Problem · String

Doing Smart Work

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Problem statement

Given a decimal digit string a, perform the following operation any number of times, including zero:

Swap two adjacent digits only when one digit is even and the other is odd.

Return the smallest string obtainable. Leading zeros are preserved.

Function

getMinimumNumber(a: String) → String

Examples

Example 1

a = "4321"return = "3142"

The even digits keep their relative order 4, 2, and the odd digits keep their relative order 3, 1. The smallest valid merge is 3142.

Constraints

1 <= a.length <= 10^5.
a contains only decimal digits.

Problem statement

Function

Examples

Example 1

Constraints

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