save project

jg.py

+bingo_num = 20
+num_list = [1,3,5,8,11,15,17,18,20,21]
+
+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(num_list,20)
+print(result)
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