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[ElisabethPO]

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[mateacademy-ai-mentor]

Review Summary

I am approving your solution because it meets the core functional requirements and all specified example cases are correctly tested. Your Jest tests correctly import getCoinCombination, verify that the function is defined, and assert the expected outputs for 1, 6, 17, and 50 cents using toEqual, which is appropriate for array comparisons. This confirms that the implementation returns the right coin counts in the required order: [pennies, nickels, dimes, quarters].

To further improve the robustness of your test suite, you could add a case for getCoinCombination(0) expecting [0, 0, 0, 0], since 0 is a valid non-negative input. Additional tests with larger or mixed values (for example, 30 or 99 cents) would also increase confidence that the greedy algorithm behaves correctly beyond the examples. Overall, the work you’ve done here is solid and focused, and these suggested additions would just strengthen an already correct solution.

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