Ruth-Aaron numbers: Difference between revisions
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==={{header|Free Pascal}}=== |
==={{header|Free Pascal}}=== |
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all depends on fast prime decomposition. |
all depends on fast prime decomposition. |
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<syntaxhighlight lang="pascal"> |
<syntaxhighlight lang="pascal"> |
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program RuthAaronNumb; |
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// gets factors of consecutive integers fast |
// gets factors of consecutive integers fast |
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// limited to 1.2e11 |
// limited to 1.2e11 |
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until false |
until false |
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end; |
end; |
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var |
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T1,T0 : Int64; |
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Begin |
Begin |
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T0 := GetTickCount64; |
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InitSmallPrimes; |
InitSmallPrimes; |
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Get_RA_Prime(30,false); |
Get_RA_Prime(30,false); |
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Get_RA_Prime(30,true); |
Get_RA_Prime(30,true); |
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writeln |
writeln('used time: ',GettickCount64-T0,' ms'); |
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writeln; |
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writeln('First Ruth-Aaron triple (factors) :'); |
writeln('First Ruth-Aaron triple (factors) :'); |
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T0 := GetTickCount64; |
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writeln(findfirstTripplesFactor(true):10); |
writeln(findfirstTripplesFactor(true):10,' in ',GettickCount64-T0,' ms'); |
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writeln; |
writeln; |
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writeln('First Ruth-Aaron triple (divisors):'); |
writeln('First Ruth-Aaron triple (divisors):'); |
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T0 := GetTickCount64; |
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writeln(findfirstTripplesFactor(false):10 |
writeln(findfirstTripplesFactor(false):10,' in ',GettickCount64-T0,' ms'); |
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end.</syntaxhighlight> |
end.</syntaxhighlight> |
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{{out|@TIO.RUN}} |
{{out|@TIO.RUN}} |
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<pre> |
<pre> |
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| ⚫ | |||
First 30 Ruth-Aaron numbers (divisors ): |
First 30 Ruth-Aaron numbers (divisors ): |
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5 24 49 77 104 153 369 492 |
5 24 49 77 104 153 369 492 |
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5959 6867 8280 8463 10647 12351 14587 16932 |
5959 6867 8280 8463 10647 12351 14587 16932 |
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17080 18490 20450 24895 26642 26649 |
17080 18490 20450 24895 26642 26649 |
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used time: 8 ms |
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First Ruth-Aaron triple (factors) : |
First Ruth-Aaron triple (factors) : |
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417162 |
417162 in 28 ms |
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First Ruth-Aaron triple (divisors): |
First Ruth-Aaron triple (divisors): |
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89460294 |
89460294 in 6817 ms |
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</pre> |
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| ⚫ | |||
=={{header|Perl}}== |
=={{header|Perl}}== |
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