import pandas as pd

def filter_and_drop(approved, eligiblepaths, min_hashes):
    """
    Filters eligiblepaths to rows where all hashes are in approved,
    then drops rows with fewer than min_hashes hashes.
    """
    approved_hashes = set(approved['sha256'])

    def all_hashes_approved(row):
        return all(h in approved_hashes for h in row['sha256'])

    filtered = eligiblepaths[eligiblepaths.apply(all_hashes_approved, axis=1)]
    filtered = filtered[filtered['sha256'].apply(len) >= min_hashes]
    
    return filtered