题解 | #牛客网的每日练题量#
牛客网的每日练题量
https://www.nowcoder.com/practice/c5307933102d47c6895679bc62c9e5a9
import pandas as pd
import numpy as np
pd.set_option("display.width", 300)
pd.set_option("display.max_rows", None)
pd.set_option("display.max_columns", None)
nowcoder = pd.read_csv("nowcoder.csv", sep=',')
print(nowcoder.groupby("date")["question_id"].agg(np.count_nonzero))
