First 9 prime Fibonacci number: Difference between revisions
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2 3 5 13 89 233 1597 28657 514229 433494437 2971215073 99194853094755497 |
2 3 5 13 89 233 1597 28657 514229 433494437 2971215073 99194853094755497 |
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</pre> |
</pre> |
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=={{header|CLU}}== |
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<lang clu>fibonacci = iter () yields (int) |
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a: int := 1 |
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b: int := 1 |
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while true do |
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yield(a) |
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a, b := b, a+b |
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end |
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end fibonacci |
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prime = proc (n: int) returns (bool) |
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if n <= 4 then return(n=2 cor n=3) end |
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if n//2=0 cor n//3=0 then return(false) end |
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d: int := 5 |
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while d*d <= n do |
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if n//d=0 then return(false) end |
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d := d+2 |
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if n//d=0 then return(false) end |
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d := d+4 |
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end |
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return(true) |
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end prime |
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start_up = proc () |
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po: stream := stream$primary_output() |
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seen: int := 0 |
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for n: int in fibonacci() do |
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if seen=9 then break end |
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if prime(n) then |
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stream$putl(po, int$unparse(n)) |
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seen := seen+1 |
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end |
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end |
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end start_up</lang> |
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{{out}} |
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<pre>2 |
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3 |
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5 |
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13 |
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89 |
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233 |
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1597 |
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28657 |
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514229</pre> |
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=={{header|Draco}}== |
=={{header|Draco}}== |
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