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Solution: Confusing Number

Explore how to identify confusing numbers by simulating a 180-degree rotation of digits and comparing the result to the original number. Understand digit mappings, handle invalid cases, and implement an efficient solution with O(log n) time and constant space complexity.

Statement

A confusing number is a number that, when rotated 180 degrees, produces a valid yet different number.

Digits can be rotated 180180 degrees according to the following rules:

  • The digits 00 ...