LC 0069 [E] Sqrt(x) - ALawliet/algorithms GitHub Wiki
class Solution(object):
def mySqrt(self, x):
l, r = 0, x
while l <= r:
m = (l + r) // 2
if m**2 <= x < (m+1)**2:
return m
elif x < m**2:
r = m - 1
else:
l = m + 1