Reverse Integer

Undefined

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Reverse the digits of a given integer. For instance, 1234 should become 4321. For negative integers, the sign should remain in the front; e.g., -123 becomes -321.

example

Input: Integer (int).

Output: Integer (int).

Examples:

assert reverse_digits(1234) == 4321
assert reverse_digits(0) == 0
assert reverse_digits(-123) == -321
assert reverse_digits(5) == 5

How it’s used: this function can be utilized in various algorithmic challenges, number-based puzzles, and certain numerical calculations.

Precondition:

−10⁹ ≤ num ≤ 10⁹.

numbers

by:

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