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
for line in sys.stdin:
a = line.split()
print(int(a[0]) + int(a[1]))
f=pd.read_csv("nowcoder.csv",sep=",")
f1=f[f["date"]>="2021/12/01"]
f3=f1[f1["date"]<="2021/12/31"]
f3["year-month-day"]=pd.to_datetime(f["date"],format="%Y-%m-%d")
f4=f3.groupby(["result","year-month-day"]).question_id.count()
print(f4)
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