题解 | #牛客网连续练习题目3天及以上的用户#

import pandas as pd
import datetime as dt

df = pd.read_csv("nowcoder.csv", sep=",")
pd.set_option("display.width", 300)  # 设置字符显示宽度
pd.set_option("display.max_rows", None)  # 设置显示最大行
pd.set_option("display.max_columns", None)

series1=df.groupby('user_id').date.count()
filtered_series1=series1[series1>=3]
print(filtered_series1)