auto save

binary_search.py

@@ -7,12 +7,13 @@ def binary_search(alist,num):
         mid = (high+low) // 2
         guess_num = num_list[mid]
         if guess_num == bingo_num:
-            print(mid)
-            break
+            return mid
         elif guess_num < bingo_num:
             low = mid + 1
         else:
             high = mid - 1
+    return None
 
 result = binary_search(num_list,17)
+print(result)