生成明日备餐清单

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    orders=pd.read_csv(StringIO(open_url(____).read()))
    items=pd.read_csv(StringIO(open_url(____).read()))
    dishes=pd.read_csv(StringIO(open_url(____).read()))
    date=orders['____'].unique()[____]
    day_orders=orders[(____)&(____)]
    merged=day_orders.merge(____)
    merged=merged.merge(____)
    prep=merged.groupby(____).size().reset_index(____)
    print(____)
    for mtype in ['____','____','____']:
        mt=prep[prep['____']==mtype]
        if len(____)>____:
            print(____)
            for _,r in mt.iterrows(): print(____)