E03 · JetBrains/i49

Full sample results

Scores

MethodScoreScaleDataset rank
(0–100)
GPT-6.1 Sol170–20; mean of three runs
46.2Δ 21.6
DeepSeek V4 Pro14.330–20; mean of three runs
38.1Δ 13.6
BTTF0.3130–1; higher is more readable
12.7Δ 11.9
Human0.560–1; original rating
24.6

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Source code

GPT-6.1 Sol explanations

Run 1 · 17/20

Code Structure: The main sequence-generation logic and membership check are cleanly separated.

Nesting: Shallow loops and conditionals make the code easy to follow.

Clarity of intent: Descriptive names help, but the sequence rule is unexplained, 250 and 251 are magic numbers, and endIndex is ambiguous because the loop treats it as exclusive.

Code length: Concise, with little unnecessary code.

Action granularity: Each statement performs a single action, although sequence[i] temporarily stores a candidate before possibly being overwritten.

Reading flow: Initialization, generation, adjustment, and output follow a natural order; consistent indentation supports scanning.

Run 2 · 17/20

Code Structure: Clear separation between sequence generation and membership checking.

Nesting: Shallow loops and conditionals are easy to follow.

Clarity of intent: Descriptive variable names make individual operations understandable, but the sequence's purpose is undocumented, and the exclusive endIndex bound is unclear at the call site.

Code length: Concise without unnecessary boilerplate beyond the Java entry point.

Action granularity: Each statement performs one clear action.

Reading flow: Initialization, calculation, validation, and output follow a natural order. Readability would improve with a named constant for 250, a more explicit membership-bound convention, and a brief explanation of the sequence rule.

Run 3 · 17/20

Code Structure: Clearly separates sequence generation from the membership-check helper.

Nesting: Shallow loop-and-conditional nesting is easy to follow.

Clarity of intent: Descriptive parameter names and straightforward operations help, but the sequence's purpose is undocumented, 250 and 251 are magic numbers, and endIndex's exclusive interpretation is unclear at the call site.

Code length: Compact without unnecessary boilerplate beyond Java's required structure.

Action granularity: Each statement performs one primary action.

Reading flow: Initialization, generation, adjustment, and output follow a natural order; consistent indentation helps, although a blank line between methods would improve separation.

BTTF feature contributions

Score 0.313 / 1