Round #748

10 May 2026, 15:20· csharp· Meta-Llama-3.3-70B-Instruct· r13-clean-hints
Complexity
band 0
ZP / UO / OBS
3 / 0 / 2
Journey weight
320
Lightshift ΔL

Prompt

Write an if/else that returns one string for even numbers and another for odd numbers.

Zero-point index (what the engine surfaced)

ZPI-ZPI-0022 | 2026-05-10T15:20:49Z Write an if/else that returns one string for even numbers and another for odd numbers. ZERO POINT — 3 entries (structural invariants) ● hsl(7.18, 100%, 50%) class [feature] ● hsl(0.00, 100%, 50%) public [feature] ● hsl(84.10, 100%, 50%) namespace [feature] UNOBSERVED — 0 entries (implied truths) OBSERVED — 2 entries (explicit in request) ◉ hsl(133.33, 100%, 15%) string [feature] ◉ hsl(214.36, 100%, 15%) if/else [feature] COMPLEXITY │ 5 entries │ spread: 81° │ band: LOW

Baseline response (no ZPI)

```csharp using System; public class Program { public static string EvenOrOdd(int num) { if (num % 2 == 0) { return "Even"; } else { return "Odd"; } } public static void Main() { Console.WriteLine(EvenOrOdd(10)); // Outputs: Even Console.WriteLine(EvenOrOdd(11)); // Outputs: Odd } } ```

Enhanced response (with ZPI)

```csharp using System; public class Program { public static string EvenOrOdd(int number) { if (number % 2 == 0) { return "The number is even."; } else { return "The number is odd."; } } public static void Main(string[] args) { Console.WriteLine(EvenOrOdd(10)); // Outputs: The number is even. Console.WriteLine(EvenOrOdd(11)); // Outputs: The number is odd. } } ``` This C# code defines a method `EvenOrOdd` that takes an integer as input and returns a string indicating whether the number is even or odd. The `Main` method demonstrates how to use this function with example inputs. The modulo operator `%` is used to find the remainder of the division of the number by 2. If the remainder is 0, the number is even; otherwise, it's odd.

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
Same
V9anthropic/claude-opus-4-7
Same
V12openai/gpt-4o
Better

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