题解 | 平方根
平方根
https://www.nowcoder.com/practice/cd21e09482f24b03842f02ae3d403cad
import sys
import math
a = int(input())
sqrt_res = math.sqrt(a)
# res = int(sqrt_res) # int强转 向下取整
res = math.floor(sqrt_res) # math.floor方法向下取整
print(f"{res}")
