Telephone Exchange Vandalism












0












$begingroup$


Our telephone exchange has 1000 wire-based connections. You dial a number, you get connected to the exchange and they put you through.



Yesterday, vandals broke in and disconnected all the wires. Your job is to reconnect them.



You can phone any number, and you get a conversation such as:




Hello, is this 123456?

No, this is 654321.




Or maybe a positive result!



How quickly can you restore our telephone exchange?






combinatorics







share|improve this question









$endgroup$

















    0












    $begingroup$


    Our telephone exchange has 1000 wire-based connections. You dial a number, you get connected to the exchange and they put you through.



    Yesterday, vandals broke in and disconnected all the wires. Your job is to reconnect them.



    You can phone any number, and you get a conversation such as:




    Hello, is this 123456?

    No, this is 654321.




    Or maybe a positive result!



    How quickly can you restore our telephone exchange?






    combinatorics







    share|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      Our telephone exchange has 1000 wire-based connections. You dial a number, you get connected to the exchange and they put you through.



      Yesterday, vandals broke in and disconnected all the wires. Your job is to reconnect them.



      You can phone any number, and you get a conversation such as:




      Hello, is this 123456?

      No, this is 654321.




      Or maybe a positive result!



      How quickly can you restore our telephone exchange?






      combinatorics







      share|improve this question









      $endgroup$




      Our telephone exchange has 1000 wire-based connections. You dial a number, you get connected to the exchange and they put you through.



      Yesterday, vandals broke in and disconnected all the wires. Your job is to reconnect them.



      You can phone any number, and you get a conversation such as:




      Hello, is this 123456?

      No, this is 654321.




      Or maybe a positive result!



      How quickly can you restore our telephone exchange?






      combinatorics




      combinatorics






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 11 mins ago









      JonMark PerryJonMark Perry

      18.5k63888




      18.5k63888






















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