大学院入試の公開過去問PDFアーカイブ(収録範囲: fy2000–fy2025)
Python .pyc decompiler (3.0–3.14) with a contamination-aware benchmark harness. Rule-only pass + one Codex call per module; evaluated on fuzz-synthetic (LLM-naïve) and *-obf (anonymised) corpora to put a number on the memorisation share. Three independent PyPI packages: pychd, pychd-pyfuzz, pychd-pyobf.