"""AIME 2026. No official standalone release; MathArena community curation."""

from ..sample import Sample
from ..registry import register_dataset
from ..spec import DatasetSpec


@register_dataset(
    DatasetSpec(
        name='aime26',
        source='MathArena/aime_2026',  # curated by MathArena (HuggingFace)
        split='train',  # the dataset ships a single split
        gen_config={'temperature': 1.0, 'max_tokens': 32768},
        prompt_suffix="\nPlease reason step by step, and put your final answer within \\boxed{}",
        task_type='math',
        tags=['math', 'competition'],
        description='AIME 2026, 30 problems (integer answers 000-999).',
        params={'hub': 'hf_raw'},
    )
)
def aime26():
    def to_sample(record: dict) -> Sample:
        return Sample(
            input=record['problem'],
            target=str(record['answer']).strip(),
            metadata={'id': record.get('id')},
        )

    return to_sample