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Prime triplets: Difference between revisions
Added solution for Action!
(Added solution for Action!) |
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:* The RosettaCode task for other patterns of primes: [[Successive prime differences]]
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=={{header|Action!}}==
{{libheader|Action! Sieve of Eratosthenes}}
<lang Action!>INCLUDE "H6:SIEVE.ACT"
PROC Main()
DEFINE MAX="5499"
BYTE ARRAY primes(MAX+1)
INT i,count=[0]
Put(125) PutE()
Sieve(primes,MAX+1)
FOR i=2 TO MAX-6
DO
IF primes(i)=1 AND primes(i+2)=1 AND (primes(i+6))=1 THEN
PrintF("(%I %I %I) ",i,i+2,i+6)
count==+1
FI
OD
PrintF("%E%EThere are %I prime triplets",count)
RETURN</lang>
{{out}}
[https://gitlab.com/amarok8bit/action-rosetta-code/-/raw/master/images/Prime_triplets.png Screenshot from Atari 8-bit computer]
<pre>
(5 7 11) (11 13 17) (17 19 23) (41 43 47) (101 103 107) (107 109 113) (191 193 197) (227 229 233) (311 313 317) (347 349 353)
(461 463 467) (641 643 647) (821 823 827) (857 859 863) (881 883 887) (1091 1093 1097) (1277 1279 1283) (1301 1303 1307)
(1427 1429 1433) (1481 1483 1487) (1487 1489 1493) (1607 1609 1613) (1871 1873 1877) (1997 1999 2003) (2081 2083 2087)
(2237 2239 2243) (2267 2269 2273) (2657 2659 2663) (2687 2689 2693) (3251 3253 3257) (3461 3463 3467) (3527 3529 3533)
(3671 3673 3677) (3917 3919 3923) (4001 4003 4007) (4127 4129 4133) (4517 4519 4523) (4637 4639 4643) (4787 4789 4793)
(4931 4933 4937) (4967 4969 4973) (5231 5233 5237) (5477 5479 5483)
There are 43 prime triplets
</pre>
=={{header|ALGOL 68}}==
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