This question is taken from [here](https://leetcode.com/discuss/interview-experience/710251/google-tokyo-new-graduate-reject).\nQuestion:\nChaining Broadcast Signals\nWe have a broadcast system with some powered-on routers. When a router receives a message, it broadcasts the same message to all other routers within its wireless range (10 feet). Then, that router shuts down, and can no longer send or receive messages. Given a list of router coordinates, tell me whether Router X can send this signal to Router Y.\n\n![image](https://assets.leetcode.com/users/images/4516d858-1376-44d0-9754-e4bb8126cbc1_1648381585.7180114.png)\n\n\nWe had to check if it possible to send a signal from one router to other.\nConstraint: We dont care about whether or not we are reaching destination just take route from one to other only to the nearest one.\n\nCan someone provide a complete solution for this?\n\n

This question is taken from here.\nQuestion:\nChaining Broadcast Signals\nWe have a broadcast system with some powered-on routers. When a router receives a mess