diff options
| -rw-r--r-- | challenge-147/wambash/raku/ch-1.raku | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/challenge-147/wambash/raku/ch-1.raku b/challenge-147/wambash/raku/ch-1.raku new file mode 100644 index 0000000000..9f4e18d616 --- /dev/null +++ b/challenge-147/wambash/raku/ch-1.raku @@ -0,0 +1,26 @@ +#!/usr/bin/env raku +constant @primes = ( + ^Inf + andthen .grep: *.is-prime +); + + +sub truncable-prime ($n) { + $n.chars == $n.match: / <[1..9]>+ $ <?{$/.is-prime}> /,:ov +} + +constant @truncable-primes = ( + @primes + andthen .grep: *.&truncable-prime +); + +multi MAIN (Bool :test($)!) { + use Test; + is truncable-prime(9137), True; + is @truncable-primes.head(20), (2, 3, 5, 7, 13, 17, 23, 37, 43, 47, 53, 67, 73, 83, 97, 113, 137, 167, 173, 197); + done-testing; +} + +multi MAIN ( $n=20 ) { + put @truncable-primes.head($n) +} |
