Pancake numbers: Difference between revisions

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=={{header|Ring}}==

{{trans|C}}

<lang ring>

for i = 0 to 3

for j = 1 to 5

n = i * 5 + j

see "p(" + n + ") = " + pancake(n) + nl

next

next

return 0

func pancake(n)

gap = 2

sum = 2

adj = -1;

while (sum < n)

adj = adj + 1

gap = gap * 2 - 1

sum = sum + gap

end

return n + adj

</lang>

Output:

<pre>

p(1) = 0

p(2) = 1

p(3) = 3

p(4) = 4

p(5) = 5

p(6) = 7

p(7) = 8

p(8) = 9

p(9) = 10

p(10) = 11

p(11) = 13

p(12) = 14

p(13) = 15

p(14) = 16

p(15) = 17

p(16) = 18

p(17) = 19

p(18) = 20

p(19) = 21

p(20) = 23