save project

binary_search.py

 # 使用二分查找法，找出9和20在列表里面的索引
-num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
\ No newline at end of file
+import random
+
+alist = []
+for i in range(1,101):
+    alist.append(i)
+num = random.choice(alist)
+
+def binary_search(alist,mum):
+    low = 0
+    high = len(alist)-1
+    while low <= high:
+        mid = (low+high) // 2
+        guess = alist[mid]
+        if guess == mum:
+            return mid
+        elif guess < mum:
+            low = mid+1
+        else:
+            high = mid-1
+    return None
+resunt = binary_search(alist,5)
+print('医院是:',resunt)
\ No newline at end of file