Hacktoberfest 2026：メンテナが10月に向けて印を付けた、オープンで初心者向けの issue。 Hacktoberfest の issue を見る

Add C++ as a playable language

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  • 何か問題がありますか？
#2 コメント 0 件 リアクション 0 件 担当者 0 名 GitHub で見る

まだ誰も着手していません。

評価

難易度
4/5
見積もり時間
3〜5日
初心者へのやさしさ
52/100
issue の種類
機能追加
明瞭さ
明確に書かれている
活発さ
活発
技術スタック
cpp, javascript, node.js
領域
backend, devtools, testing

調査の方向性

Start with backend/arena/runner/harness.js, comparing pythonProgram and javascriptProgram, then inspect LANGUAGES, starterCode, and the relevant tests in backend/tests/. Implement a C++ driver and typed starter code for supported problem types, wire up the Judge0 language id, and validate correct and incorrect solutions across difficulty levels and types using a real Judge0. Done means npm test and node scripts/check-boundary.js pass.

索引モデルが issue の本文から書いたものです。

説明

help wanted

Popular for competitive programming. C++ has no built-in JSON reader, so the driver needs a small parser for the input format above. std::pair / std::tuple cover the tuple types.

CodeArena runs player code in Python, JavaScript and TypeScript. Adding a language is self-contained and a great way to get into the codebase.

Where the code lives

  • backend/arena/runner/harness.js: one small driver per language. The driver reads {"tests":[{"args":[...]}]} as JSON on stdin, calls the player's function once per test, and prints the per-run marker line followed by a JSON array of { ok, value } / { ok, error }. Copy the shape of pythonProgram / javascriptProgram. The marker nonce must stay per-run.
  • LANGUAGES in the same file: add { label, judge0Id }.
  • starterCode(problem, language): typed starter code built from problem.function (name, params[].type, returns).
  • backend/arena/runner/executors.js: localExecutor only knows node and python3; add your compiler for local development if you like (it is never used in production).

Types the 45 problems use

integer, integer[], integer[][], number[], string, string[], boolean, and tuples: [integer, integer], [integer, integer][], [integer, integer, integer][], [string, integer][], [string, string, string][], [integer, integer, string].

Statically typed languages need a mapping for each of these. If a mixed tuple such as [string, integer] has no clean equivalent in your language, it is fine to leave that problem out for your language rather than force an awkward type: the loader supports per-problem languages via runnableLanguages.

Definition of done

  • Driver plus typed starter code for every problem your language supports.
  • Judge0 language id wired up (Judge0 CE: Java 62, C++ 54, Go 60; confirm on your Judge0 instance).
  • Proof: correct solutions pass and wrong ones fail on a spread of problems (easy, medium, hard, and every type above) against a real Judge0 (docker-compose.judge0.yml in the repo root runs one locally).
  • Tests in backend/tests/ covering the driver output and starter code; npm test stays green.
  • node scripts/check-boundary.js passes.
主要言語
JavaScript
スター
0
フォーク
2
30日以内にマージされた PR はありません

環境構築

はじめの一歩

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  2. 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
  3. リポジトリをフォークし、ブランチを切って変更します。
  4. issue 番号を参照したプルリクエストを送ります。

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