题解 | #牛客用户刷题量的方差与提交次数的标准差#
牛客用户刷题量的方差与提交次数的标准差
https://www.nowcoder.com/practice/4ca5272bc96c453b9c70fccc039a0679
import sys
import pandas as pd
data = pd.read_csv("Nowcoder.csv", sep=",")
print(data["Num_of_exercise"].var().round(2))
print(data["Number_of_submissions"].std().round(2))
for line in sys.stdin:
a = line.split()
print(int(a[0]) + int(a[1]))
