- Code: Select all
(length 1234567890)
would equal 10, or:
- Code: Select all
(length 5487)
would equal 4
(length 1234567890)
(length 5487)
(defun number-length (num)
(if (zerop num)
1
(1+ (floor (log num 10)))))
(defun number-length (num)
(length (format nil "~s" num)))
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