From 6160b4d4e36fc02addbea597ede2cfab0f710a80 Mon Sep 17 00:00:00 2001
From: BellCodeEditor <bellcode_dev@bell.ai>
Date: Sat, 1 Jan 2022 11:43:22 +0800
Subject: [PATCH] save project
---
my_search.py | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/my_search.py b/my_search.py
index 6eaf4dc..c13b1a5 100644
--- a/my_search.py
+++ b/my_search.py
@@ -6,4 +6,20 @@ for i in range(1, 101):
num = random.choice(alist)
# 请完善二分查找函数binary_search(),查找出num在列表alist里面的索引位置
-def binary_search(alist,num):
\ No newline at end of file
+def binary_search(alist,num):
+ low=0
+ high=len(alist)-1
+ while low <= high:
+ mid=(low+high)//2
+ guess = alist[mid]
+ if guess == num:
+ return mid
+ elif guess < num:
+ low = mid + 1
+ else:
+ high = mid-1
+ return None
+
+result = binary_search(alist,num)
+print('老师给的数是：',num)
+print('它在列表里的索引是：',result)
\ No newline at end of file
--
libgit2 0.25.0