题解 | #牛客网用户最高的正确率#

import pandas as pd
import numpy as np

df1 = pd.read_csv("Nowcoder.csv", sep=",")
a = (
    df1.query("Num_of_exercise > 10")["Num_of_exercise"]
    / df1.query("Num_of_exercise > 10")["Number_of_submissions"]
)
print(round(a.max(),3))