Reverse Integer
Detailed guide and Python implementation for the 'Reverse Integer' problem.
Problem Statement
Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-2^31, 2^31 - 1], then return 0.
Assume the environment does not allow you to store 64-bit integers (signed or unsigned).
Write a function reverse(x: int) -> int.
- •-2^31 <= x <= 2^31 - 1
Examples
x = 123
321
Reversing 123 gives 321.
x = -123
-321
Reversing -123 gives -321.
x = 120
21
Reversing 120 gives 021, which is 21.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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