How should I practice Sparse Plant Infection Simulation?

Start by reading the full statement, solve the visible examples, then compare the pattern against related OpenAI phone screen problems in FastPrep.

Is Sparse Plant Infection Simulation associated with OpenAI?

FastPrep tags this as a OpenAI phone screen coding practice problem when the problem catalog has that company and stage context.

Problem · Simulation

Sparse Plant Infection Simulation

● Hard

OpenAIFULLTIMEPHONE SCREEN

Problem statement

You are given a sparse plant grid. Each row of plants is [row, column, state] for one plant at a unique signed 32-bit coordinate:

The problem statement continues

Pro

Examples

Example 1

plants = [[0,0,1],[0,1,0],[0,2,0]]threshold = 1recoveryDays = 2return = 4

The infection moves one position to the right on days 1 and 2. The initially infected plant recovers on day 2, the middle plant on day 3, and the final plant on day 4. No future transition remains after day 4.

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