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Try to simulate the process.
For every iteration, find the new array using the old one and the given rules.
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Yes, simulation-based array problems like Array Transformation are common in coding interviews. They test your ability to carefully follow rules, manage state updates, and implement iterative transformations efficiently.
The optimal approach is to simulate the process described in the problem. For each round, check every element except the boundaries and adjust values based on their neighbors using a temporary array. Repeat the process until no values change.
A temporary array ensures that updates from the current iteration do not influence other comparisons within the same round. This keeps the transformation consistent with the rule that all updates happen simultaneously.
A simple array is sufficient for this problem because the task mainly involves sequential traversal and neighbor comparisons. An additional temporary array is typically used to store updates during each simulation step.