fix random distance

generate.py

@@ -55,8 +55,8 @@ with out.open("w") as f:
     # write connections
     keys = list(nodes.keys())
     for a, v in nodes.items():
-        distance = random.randint(min_distance, max_distance)
         for b in v:
+            distance = random.randint(min_distance, max_distance)
             f.write(f"{keys.index(a)} {keys.index(b)} {distance}\n")
 
 print("saved to", out.name)