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中级

按员工汇总订餐费用

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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
    orders=pd.read_csv(StringIO(open_url(____).read()))
    emp=pd.read_csv(StringIO(open_url(____).read()))
    active=orders[orders['____']=='____']
    by_emp=active.groupby(____).agg(count=(____),total=(____)).reset_index()
    by_emp=by_emp.merge(____)
    by_emp['____']=by_emp['____'].round(____)
    print(____)
    for _,r in by_emp.nlargest(____,'____').iterrows():
        print(____)

示例

输入
solve()
期望输出
Order cost per employee (top 10 by total):
  姚建军(staff): 45 orders total=436.0
  邹晓燕(staff): 39 orders total=435.5
  万志远(staff): 42 orders total=434.0
  翁志远(manager): 39 orders total=418.5
  谭雅婷(intern): 40 orders total=418.0
  庄建军(intern): 40 orders total=418.0
  夏志明(staff): 37 orders total=410.5
  黄海波(staff): 38 orders total=409.5
  易雅丽(staff): 37 orders total=407.5
  闫秀梅(intern): 39 orders total=401.5
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