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
import datetime
df1 = pd.read_csv('nowcoder.csv',sep=',')
df1['year-month-day'] = pd.to_datetime(df1['date']).dt.date
print(df1.groupby(by=['result'])['year-month-day'].value_counts())
