Fix example claims to use valid rectangular plots in "land-grab-in-space"

ethan-yi-dev · January 7, 2026, 6:36pm

While working on the C# exercise “Find the plot with the longest side”, I noticed that the example in step 4 violates the stated guarantee that plot coordinates always form a contiguous rectangular shape.

The original example also results in overlapping claims if minimally corrected, which can be confusing in a teaching context.

I’ve opened a PR that updates the example to:

use valid rectangular plots consistent with the exercise description, and
keep the example claims non-overlapping while preserving the original intent of demonstrating the plot with the longest side.
align the example with the plots used in the existing tests.

PR link:

github.com/exercism/csharp

Fix example claims to use valid rectangular plots

exercism:main ← ethan-yi-dev:fix-longest-side-example

opened 06:28PM - 07 Jan 26 UTC

ethan-yi-dev

+1 -1

### What was changed The example in step 4 has been updated to use valid rect…angular plots that are consistent with the exercise description. ### Why The exercise guarantees that plot coordinates always form a contiguous rectangular shape. The original example violated this guarantee, and a minimal correction would also result in overlapping claims, which can be confusing in a teaching example. This update: - ensures both example claims are valid rectangles, and - keeps the claims non-overlapping while preserving the original intent of demonstrating the plot with the longest side.

Happy to adjust this if there’s a preferred approach.