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]))
df=pd.read_csv('nowcoder.csv')
df["date"]=pd.to_datetime(df["date"])
res=df.groupby([df["result"],df["date"].dt.date]).size()
res.index.names=['result','year-month-day']
print(res)
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