Update minimum-moves-to-move-a-box-to-their-target-location.py

Author: kamyu104

Python/minimum-moves-to-move-a-box-to-their-target-location.py

@@ -36,12 +36,12 @@ def g(p1, p2):
             return abs(p1[0]-p2[0])+abs(p1[1]-p2[1])
 
         def a_star(b, p, t):
-            f, h = g(b, t), 2
+            f, dh = g(b, t), 2
             closer, detour = [(b, p)], []
             lookup = set()
             while closer or detour:
                 if not closer:
-                    f += h
+                    f += dh
                     closer, detour = detour, closer
                 b, p = closer.pop()
                 if b == t: