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
#导入文件
import pandas as pd
df = pd.read_csv('./nowcoder.csv')
#转化时间保留日期and列名
df['year-month-day'] = pd.to_datetime(df['date']).dt.date
#重组
print(df.groupby(['result', 'year-month-day'])['question_id'].count())
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