| { |
| "task_id": "integer_compression_codec", |
| "name": "Integer Compression Codec", |
| "category": "Systems & Software Engineering", |
| "base_image": "cpp", |
| "platform": "linux/amd64", |
| "internet": false, |
| "cwd": "/home/workspace/integer-compression-codec", |
| "submit_paths": [ |
| "include/", |
| "src/", |
| "Makefile" |
| ], |
| "submit_exclude": [ |
| "**/__pycache__/", |
| "outputs/", |
| "data/", |
| ".judge-bin/" |
| ], |
| "work": { |
| "image_tag": "fa3895856662", |
| "specs_dir": "/home/workspace/integer-compression-codec", |
| "agent_query": "## Role\\n\\nYou are an expert systems and performance engineer improving a uint32 integer compression codec.\\n\\n## Task\\n\\nImplement a stronger `libintcompress.so` by editing the C++ code in `src/` while preserving the ABI in `include/intcompress.h`. Your goal is to improve both compression ratio and decode throughput on the provided datasets.\\n\\n## Files\\n\\n- `problem.md`: task description and constraints\\n- `task_input.md`: input / output contract\\n- `scoring_scheme.md`: public scoring rules\\n- `soft_environment.md`: environment description\\n- `include/intcompress.h`: fixed ABI\\n- `src/codec.cpp`: baseline implementation\\n- `tools/verify.cpp`: local correctness check\\n- `tools/bench.cpp`: local benchmarking tool\\n\\n## Working Strategy\\n\\n1. Read the docs first.\\n2. Keep `include/intcompress.h` unchanged.\\n3. Improve `src/` with better block encoding, delta transforms, bit-packing, SIMD, or adaptive strategies.\\n4. Use `make`, `./tools/verify`, and `./tools/bench --all ./libintcompress.so` for local iteration.\\n5. Submit intermediate versions frequently.\\n\\n## Rules\\n\\n- Do not use network access, subprocess tricks, or external services.\\n- Do not depend on third-party compression libraries.\\n- Keep the exported `ic_*` symbols intact.\\n- Correctness matters: `decode(encode(X))` must exactly recover `X`." |
| }, |
| "judge": { |
| "image_tag": "27063396e02a", |
| "eval_cmd": "cd /home/workspace/integer-compression-codec && python3 runner_judge.py", |
| "eval_timeout": 2400, |
| "parser": "structured_json", |
| "score_direction": "maximize", |
| "selection": "score_first", |
| "rescale": { |
| "kind": "linear", |
| "lower": 0.0, |
| "upper": 100.0 |
| } |
| } |
| } |
|
|
