Hourglass puzzle: Difference between revisions

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(added Raku programming solution)
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At time t = 14 , flip hourglass 7
At time t = 14 , flip hourglass 7
At time t = 16 , flip hourglass 4 end = 9</pre>
At time t = 16 , flip hourglass 4 end = 9</pre>

If interim-flips are allowed I think the following is shorter, just that I wish I knew how to implement it ..

<lang perl6>t x(4) y(7)
0
4 flip record = 0
7 flip flip record +=3
10 stop flip record +=3
13 stop record +=3</lang>


=={{header|REXX}}==
=={{header|REXX}}==