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,format='%Y-%m-%d').dt.date d=data.groupby(['result','year-month-day'])['date'].count() print(d) # print(data['year-month-day'])