Rotated Digits at Arista Networks

Problem Description

An integer `x` is a **good** if after rotating each digit individually by 180 degrees, we get a valid number that is different from `x`. Each digit must be rotated - we cannot choose to leave it alone. A number is valid if each digit remains a digit after rotation. For example: * `0`, `1`, and `...

Topics

Also asked at 5 companies