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Largest int from concatenated ints: Difference between revisions
Add Common Lisp version
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(Add Common Lisp version) |
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<pre>
<pre>(998764543431 6054854654)</pre>
=={{header|Common Lisp}}==
<lang lisp>
;; Sort criteria is by most significant digit with least digits used as a tie
;; breaker
(defun largest-msd-with-less-digits (x y)
(flet ((first-digit (x)
(digit-char-p (aref x 0))))
(cond ((> (first-digit x)
(first-digit y))
t)
((> (first-digit y)
(first-digit x))
nil)
((and (= (first-digit x)
(first-digit y))
(> (length x)
(length y)))
nil)
(t t))))
(loop
:for input :in '((54 546 548 60) (1 34 3 98 9 76 45 4))
:do (format t "~{~A~}~%"
(sort (mapcar #'write-to-string input)
#'largest-msd-with-less-digits)))
</lang>
{{out}}
<pre>
6054548546
998764453341
</pre>
=={{header|D}}==
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