Group Students (AS Intern, it may apply to other interns)

Asked at Amazon · Coding & Leetcode-style Questions · Difficulty: Medium

Amazon Technical Academy (ATA) provides in-demand, technical training to current Amazon employees looking to broaden their skill sets. ATA has admitted a group of `n` prospective trainees with varying skill levels. To better accommodate the trainees, ATA has decided to create classes tailored to the skill levels. A placement examination will return a skill level that will be used to group the trainees into classes, where `levels[i]` represents the skill level of trainee `i`. All trainees within a class must have a skill level within `maxSpread`, a specified range of one another.

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