From ef3b6b170b4759d73845ac0c8391bd9283343b78 Mon Sep 17 00:00:00 2001
From: sangge-rockpi <2251250136@qq.com>
Date: Wed, 24 Jan 2024 18:25:02 +0800
Subject: [PATCH] update 69

---
 leetcode/69.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/leetcode/69.py b/leetcode/69.py
index a5739a1..0b8a481 100644
--- a/leetcode/69.py
+++ b/leetcode/69.py
@@ -7,6 +7,12 @@ class Solution:
         # Use Newton's method, return the smaller root
         # fx = x ** 2 - c
         # Xn-1 = 0.5 * (Xn + c / Xn)
+        if c == 0:
+            return 0
+
+        if c == 1:
+            return 1
+
         x = c / 2
         while True:
             next_x = (x + c / x) / 2