@Remellion - when u said: "mrsB and C across, A back" how is that possible ??
Logic problem - 2 strings
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Remellion wrote:
Mrs. B and C across, A back, Mrs. A and C across, A back again.
Mr. B and C across, Mr. and Mrs. B back.
Mr. A and B across. Mrs. C back, and she fetches the 2 one at a time.
Now do 4 couples with a boat holding 3 people.
But the boat can transport 2....