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 Yet one more coin sorting problem (Posted on 2004-05-31)
You have five coins, apparently alike, but actually of different weights. You also have a two arm scale.

Can you manage to sort the coins in ascending order, using the scale only seven times?

Bonus question: can it be done in fewer weighings?

 See The Solution Submitted by Federico Kereki Rating: 4.0000 (4 votes)

 Subject Author Date re(7): Solution based on the O-Sort sorting algorithm Charlie 2004-06-03 22:38:11 re(6): Solution based on the O-Sort sorting algorithm Erik 2004-06-03 17:44:31 re(5): Solution based on the O-Sort sorting algorithm Charlie 2004-06-03 13:26:56 re(4): Solution based on the O-Sort sorting algorithm Erik 2004-06-03 09:37:02 re(3): Solution based on the O-Sort sorting algorithm Charlie 2004-06-02 13:57:13 re(2): Full solution Charlie 2004-06-02 13:48:58 re: Full solution Erik 2004-06-02 13:37:01 re(2): Solution based on the O-Sort sorting algorithm Erik 2004-06-02 13:11:05 re: Solution based on the O-Sort sorting algorithm Charlie 2004-06-02 11:22:26 Solution based on the O-Sort sorting algorithm Erik 2004-06-01 16:50:29 Full solution e.g. 2004-05-31 15:31:28 Solution Brian Smith 2004-05-31 15:22:06 re: solution Charlie 2004-05-31 11:28:03 solution Charlie 2004-05-31 10:56:46 re: yes no maybe Victor Zapana 2004-05-31 10:45:35 brief brief brief solution to 1st part Victor Zapana 2004-05-31 10:44:40 re(2): yes no maybe Charlie 2004-05-31 10:34:21 answer to second part Charlie 2004-05-31 10:16:07 re: yes no maybe Popstar Dave 2004-05-31 10:12:11 yes no maybe Danny 2004-05-31 09:53:08

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