题解 | #牛客网答题正误总数#
牛客网答题正误总数
https://www.nowcoder.com/practice/85a4eff716a34ba8b250c78a5a2c8224
import pandas as pd
import datetime
df1 = pd.read_csv('nowcoder.csv',sep=',')
df1['date'] = pd.to_datetime(df1['date']).dt.date
print(df1.groupby('result')['user_id'].count())
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