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  1. (defun probability-of-kill (sides health)
  2.   (* (/ (expt sides (floor health sides)))
  3. 	 (if (> (mod health sides) 0)
  4. 	     (/ (1+ (- sides (mod health sides))) sides)
  5. 	     1)))
  6.  
  7. (progn
  8.   (dolist (x '((4 1)
  9. 		   (4 4)
  10. 		   (4 5)
  11. 		   (4 6)
  12. 		   (1 10)
  13. 		   (100 200)
  14. 		   (8 20)))
  15. 	(format t "~a sides, ~a health -> ~f% probability~%"
  16. 		(first x)
  17. 		(second x)
  18. 		(* 100 (probability-of-kill (first x) (second x)))))
  19.   (terpri))
Success #stdin #stdout 0.01s 10528KB
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4 sides, 1 health -> 100.0% probability
4 sides, 4 health -> 25.0% probability
4 sides, 5 health -> 25.0% probability
4 sides, 6 health -> 18.75% probability
1 sides, 10 health -> 100.0% probability
100 sides, 200 health -> 0.01% probability
8 sides, 20 health -> 0.9765625% probability
https://ideone.com/YBUtNf
language:
Common Lisp (clisp 2.49.92)
created:
8 years ago
visibility:
public

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