| |
| """Deterministic verifier for ENG2 (standard library only, terminal engineering quantity).""" |
| import json, math, pathlib, sys |
|
|
| EXPECTED = {"kramers_kronig_dispersed_rms_width_fs":501.3093} |
| REL_TOL = 2e-3 |
| ABS_TOL = 1e-5 |
|
|
| def verify(path: pathlib.Path) -> tuple[bool, float, list[str]]: |
| if not path.exists(): |
| return False, 0.0, [f"Missing candidate file: {path}"] |
| try: |
| data = json.loads(path.read_text(encoding="utf-8")) |
| except Exception as e: |
| return False, 0.0, [f"Invalid JSON: {e}"] |
| if not isinstance(data, dict): |
| return False, 0.0, ["Candidate root must be a JSON object"] |
| passed = 0 |
| errors = [] |
| for k, exp in EXPECTED.items(): |
| if k not in data: |
| errors.append(f"Missing key: {k}") |
| continue |
| val = data[k] |
| if isinstance(val, bool) or not isinstance(val, (int, float)) or not math.isfinite(float(val)): |
| errors.append(f"Non-finite or non-numeric value for {k}: {val!r}") |
| continue |
| val = float(val) |
| tol = max(ABS_TOL, REL_TOL * abs(exp)) |
| if abs(val - exp) <= tol: |
| passed += 1 |
| else: |
| errors.append(f"Mismatch for {k}: got {val:.6g}, expected {exp:.6g} (tol={tol:.3g})") |
| reward = round(passed / max(1, len(EXPECTED)), 2) |
| return (passed == len(EXPECTED) and not errors), reward, errors |
|
|
|
|
| |
| def evaluate_file(candidate_path): |
| from pathlib import Path as _Path |
| try: |
| _path = _Path(candidate_path) |
| if not _path.is_file(): |
| raise ValueError("missing_candidate_file") |
| if _path.stat().st_size > 1048576: |
| raise ValueError("candidate_exceeds_size_limit") |
| _passed, _reward, _errors = verify(_path) |
| return {"passed": bool(_passed), "reward": float(_reward), "errors": _errors} |
| except (OSError, ValueError, TypeError, OverflowError) as _exc: |
| return {"passed": False, "reward": 0.0, "errors": ["invalid_candidate:" + str(_exc)]} |
|
|
|
|
| if __name__ == "__main__": |
| from pathlib import Path as _Path |
| _answer = sys.argv[1] if len(sys.argv) > 1 else _Path(__file__).resolve().parent / "solution" / "solution.json" |
| _result = evaluate_file(_answer) |
| print(json.dumps(_result, ensure_ascii=False)) |
| raise SystemExit(0 if _result["passed"] else 1) |
|
|
