统计共享卡组下载与评分

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    sh=pd.read_csv(StringIO(open_url("https://data.zuihe.com/dbd/ms-memcard/state_04/shared_decks.csv").read()))
    print(f"Shared decks: {len(sh)}")
    print(f"Total downloads: {sh['download_count'].sum()}")
    print(f"Avg rating: {round(sh['rating'].mean(),2)}/5")
    print("Top 5 by downloads:")
    for _,r in sh.nlargest(5,'download_count').iterrows():
        print(f"  {r['deck_name']}: {r['download_count']} downloads rating={r['rating']}")