统计菜谱日期覆盖率

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    from datetime import datetime,timedelta
    items=pd.read_csv(StringIO(open_url(____).read()))
    dates=pd.to_datetime(items['____'].unique())
    date_range=[datetime(____,____,____)+timedelta(____) for i in range(____)]
    workdays=[d for d in date_range if d.weekday()<____]
    covered_dates=[d for d in workdays if d in dates]
    print(____)
    print(____)
    print(____)
    print(____)
    MEAL_TYPES=['____','____','____']
    for mtype in MEAL_TYPES:
        mtype_items=items[items['____']==mtype]
        print(____)