Primes which contain only one odd digit: Difference between revisions
Content added Content deleted
m (→{{header|Julia}}: added missing bracket) |
m (→{{header|Sidef}}: minor optimization) |
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var even_digits = digits.grep { .is_even } |
var even_digits = digits.grep { .is_even } |
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var odd_digits = digits.grep { .is_odd } |
var odd_digits = digits.grep { .is_odd && .is_coprime(base) } |
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list << digits.grep { .is_odd && .is_prime && !.is_coprime(base) }... |
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for k in (0 .. upto.len(base)-1) { |
for k in (0 .. upto.len(base)-1) { |
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odd_digits.each {|d| |
odd_digits.each {|d| |
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var n = [d, a...].digits2num(base) |
var n = [d, a...].digits2num(base) |
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list << n if |
list << n if n.is_prime |
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} |
} |
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}) |
}) |
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with (1e3) {|n| |
with (1e3) {|n| |
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var list = primes_with_one_odd_digit( |
var list = primes_with_one_odd_digit(n) |
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say "There are #{list.len} primes under #{n.commify} which contain only one odd digit:" |
say "There are #{list.len} primes under #{n.commify} which contain only one odd digit:" |
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list.each_slice(9, {|*a| say a.map { '%3s' % _ }.join(' ') }) |
list.each_slice(9, {|*a| say a.map { '%3s' % _ }.join(' ') }) |
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