Descending primes: Difference between revisions
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(Added a Forth implementation of the task) |
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Output same as the sorted output above, without requiring a sort. |
Output same as the sorted output above, without requiring a sort. |
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=={{header|Picat}}== |
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<lang Picat>import util. |
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main => |
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DP = [N : S in power_set("987654321"), S != [], N = S.to_int, prime(N)].sort, |
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foreach({P,I} in zip(DP,1..DP.len)) |
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printf("%9d%s",P,cond(I mod 10 == 0,"\n","")) |
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end, |
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nl, |
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println(len=DP.len).</lang> |
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{{out}} |
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<pre> 2 3 5 7 31 41 43 53 61 71 |
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73 83 97 421 431 521 541 631 641 643 |
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653 743 751 761 821 853 863 941 953 971 |
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983 5431 6421 6521 7321 7541 7621 7643 8431 8521 |
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8543 8641 8731 8741 8753 8761 9421 9431 9521 9631 |
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9643 9721 9743 9851 9871 75431 76421 76541 76543 86531 |
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87421 87541 87631 87641 87643 94321 96431 97651 98321 98543 |
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98621 98641 98731 764321 865321 876431 975421 986543 987541 987631 |
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8764321 8765321 9754321 9875321 97654321 98764321 98765431 |
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len = 87</pre> |
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=={{header|Raku}}== |
=={{header|Raku}}== |