Positive decimal integers with the digit 1 occurring exactly twice: Difference between revisions
Positive decimal integers with the digit 1 occurring exactly twice (view source)
Revision as of 04:45, 9 July 2021
, 2 years ago→{{header|Julia}}
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Found 27 such numbers.
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=={{header|Julia}}==
<lang julia>totalddigisn(x, d = 1, n = 2; base=10) = count(j -> j == d, digits(x; base)) == n
println(filter(totalddigisn, 1:1000))
</lang>{{out}}
<pre>
[11, 101, 110, 112, 113, 114, 115, 116, 117, 118, 119, 121, 131, 141, 151, 161, 171, 181, 191, 211, 311, 411, 511, 611, 711, 811, 911]
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