Same program, fifteen languages

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What this is. One working directory, no build step and no network: open index.html directly, or serve the folder. Everything it renders comes from the data/ files in this repository, and every code example is real — snippets were executed and their output compared where a toolchain existed, and are marked reviewed otherwise. The tools/verify.mjs script re-checks all of them and rewrites the badge data.

Thirteen tasks · fifteen languages · the same algorithm, fifteen ways.