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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 -> ~9$ probability~%"
  16. 		(first x)
  17. 		(second x)
  18. 		(probability-of-kill (first x) (second x))))
  19.   (terpri))
Success #stdin #stdout 0.02s 10528KB
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4 sides, 1 health -> 1.000000000 probability
4 sides, 4 health -> 0.250000000 probability
4 sides, 5 health -> 0.250000000 probability
4 sides, 6 health -> 0.187500000 probability
1 sides, 10 health -> 1.000000000 probability
100 sides, 200 health -> 0.000100000 probability
8 sides, 20 health -> 0.009765625 probability
https://ideone.com/NApW3k
language:
Common Lisp (clisp 2.49.92)
created:
8 years ago
visibility:
public

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