# Maximum stability of a subset of servers — coding interview question

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Source: https://www.aced.io/questions/4818/maximum-server-stability-subset
Source observed: 2026-11-05T00:47:53.327Z
Last checked: 2026-11-05T00:47:53.327+00:00
Indexed: 2026-11-07T02:57:56.634+00:00

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# Maximum stability of a subset of servers

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## Question

Find the maximum possible stability of any subset of servers. Return the result modulo `10^9+7`.

Example input:

- Reliability: `[1, 2, 2]`
- Availability: `[1, 1, 3]`

The question does not include a definition of stability, the required input/output format, constraints, or an expected result for the example. Use the question as an interview-practice prompt rather than as a complete standalone specification.

## Interview metadata

- Role: [Software Engineer](https://www.aced.io/questions?role=swe)
- Company: [Amazon](https://www.aced.io/questions?company=amazon)
- Category: [Coding](https://www.aced.io/questions?type=coding)
- Reported last asked: 2 years ago
- Community answers: No answers have been contributed yet.

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