题解 | 牛客网每日正确与错误的答题次数
牛客网每日正确与错误的答题次数
https://www.nowcoder.com/practice/bd74b186d5954eb69c00ee804cebe364
import pandas as pd
data = pd.read_csv('nowcoder.csv')
data['year-month-day'] = pd.to_datetime(data.date.str[:10])
data2 = data.groupby(['result','year-month-day']).size()
print(data2)


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