save project

my_search.py

@@ -8,4 +8,14 @@ num = random.choice(alist)
 
 
 def a(alist,num):
 def a(alist,num):
     low=0
     low=0
-    high=len(low+)
+    high=len(alist)-1
\ No newline at end of file
+    while high>=low:
+        mid=(low+high)//2
+        if alist[mid]==num:
+            return mid
+        if alist[mid]<num:
+            low=mid+1
+        else:
+            high=mid-1
+    return None
+print(num,"qqqqqqqqq",a(alist,num))
\ No newline at end of file