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中级

计算用户共享贡献排名

未完成
中级参考 代码结构已给出，请填写 ____ 处 
def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    sh=pd.read_csv(StringIO(open_url(____).read()))
    by_user=sh.groupby(____).agg(decks=(____),downloads=(____),avg_rating=(____)).reset_index()
    by_user['____']=(____).round(____)
    by_user=by_user.sort_values(____)
    print(____)
    for i,(____) in enumerate(by_user.head(____).iterrows(),____):
        print(____)

示例

输入
solve()
期望输出
Contribution ranking:
  #1 USR-0007: decks=4 downloads=1462 rating=4.08 score=852.5
  #2 USR-0006: decks=3 downloads=1163 rating=4.17 score=694.8
  #3 USR-0016: decks=3 downloads=826 rating=4.07 score=524.3
  #4 USR-0014: decks=2 downloads=809 rating=3.65 score=497.5
  #5 USR-0005: decks=2 downloads=743 rating=3.65 score=464.5
  #6 USR-0013: decks=2 downloads=712 rating=4.05 score=457.0
  #7 USR-0002: decks=2 downloads=627 rating=4.05 score=414.5
  #8 USR-0018: decks=1 downloads=478 rating=4.8 score=345.0
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