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
df = pd.read_csv('nowcoder.csv',sep=',')
df[['year-month-day','time']] = df['date'].str.split(' ',expand=True)
print(df.groupby(['result','year-month-day'])['year-month-day'].count())
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