save project

binary_search.py

+num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+l=0
+r=len(num_list)-1
+go=20
+while l<=r:
+    mid=(l+r)//2
+    guess=num_list[mid]
+    if guess==go:
+        print(mid)
+        exit()
+    elif guess<go:
+        l+=1
+    else:
+        r-=1
+print("no")
\ No newline at end of file