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中级

实现排期覆盖率统计

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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
    sch_csv = open_url(____).read()
    scr_csv = open_url(____).read()
    cmp_csv = open_url(____).read()
    schedules = pd.read_csv(StringIO(____))
    screens = pd.read_csv(StringIO(____))
    campaigns = pd.read_csv(StringIO(____))
    online_screens = set(____)
    active_sched = schedules[schedules['____']=='____']
    scheduled_screens = set(____)
    coverage = len(____)
    total_online = len(____)
    print(____)
    print("____"+str(____))
    print("____"+str(len(____)))
    print("____"+str(____)+"____"+str(____)+"____"+str(round(____))+"____")
    print(____)
    for _, cmp in campaigns.head(____).iterrows():
        cmp_sch = active_sched[active_sched['____']==cmp['____']]
        print("____"+cmp['____']+"____"+str(len(____))+"____")

示例

输入
solve()
期望输出
Schedule coverage:
  Online screens: 129
  Scheduled screens: 83
  Coverage: 56/129 = 43.4%
By campaign:
  CMP-0001: 3 active schedules
  CMP-0002: 4 active schedules
  CMP-0003: 3 active schedules
  CMP-0004: 3 active schedules
  CMP-0005: 1 active schedules
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