Round #650

10 May 2026, 08:30· csharp· qwen2.5-coder-7b-instruct· r13-clean-hints
Complexity
band 0
ZP / UO / OBS
0 / 0 / 0
Journey weight
0
Lightshift ΔL

Prompt

Convert 5 over 8 to a percentage.

Zero-point index (what the engine surfaced)

ZPI-ZPI-0024 | 2026-05-10T08:30:07Z Convert 5 over 8 to a percentage. ZERO POINT — 0 entries (structural invariants) UNOBSERVED — 0 entries (implied truths) OBSERVED — 0 entries (explicit in request) COMPLEXITY │ 0 entries │ spread: 0° │ band: LOW

Baseline response (no ZPI)

To convert the fraction \( \frac{5}{8} \) to a percentage, you can follow these steps: 1. Divide the numerator by the denominator: \( \frac{5}{8} = 0.625 \). 2. Multiply the result by 100 to get the percentage: \( 0.625 \times 100 = 62.5\% \). So, \( \frac{5}{8} \) as a percentage is **62.5%**.

Enhanced response (with ZPI)

To convert the fraction \( \frac{5}{8} \) to a percentage, you can follow these steps: 1. Divide the numerator by the denominator. 2. Multiply the result by 100 to get the percentage. Here's how you can implement this in C#: ```csharp using System; class Program { static void Main() { double fraction = 5 / 8.0; // Convert to double to ensure accurate division double percentage = fraction * 100; Console.WriteLine($"{fraction} as a percentage is {percentage}%"); } } ``` ### Explanation: - **Division**: `5 / 8.0` performs the division and results in a decimal value. - **Multiplication by 100**: `fraction * 100` converts the decimal to a percentage. - **Output**: The result is printed to the console. This code snippet is straightforward and follows C# best practices for performing arithmetic operations and outputting results.

Grader chain

Each grader reads the same baseline + enhanced pair and casts an independent verdict. Disagreement is the framework's own signal — not noise to be averaged away.

V1samba/Meta-Llama-3.3-70B-Instruct
Better
V4qwen2.5-coder-3b-instruct
Better
V5openrouter/qwen/qwen3-235b-a22b-2507
Better
V7qwen2.5-coder-7b-instruct
Better
V8openai/gpt-4.1
Better
V9anthropic/claude-opus-4-7
Worse
V12openai/gpt-4o
Better

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