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 sys
import pandas as pd
df = pd.read_csv('nowcoder.csv', sep = ',')
df['year-month-day'] = pd.to_datetime(df['date'], format = '%Y-%m-%d')
print(df.groupby(['result','year-month-day'])['question_id'].count())
for line in sys.stdin:
a = line.split()
print(int(a[0]) + int(a[1]))
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