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Random Number Generator (Posted on 2004-06-08) Difficulty: 3 of 5
A particular random number generator returns positive integer n with probability 1/(2^n). (ie '1' with probability 1/2, '2' with probability 1/4, '3' with probability 1/8, etc.)

Using this random number generator, write an algorithm which chooses a random integer from 1 to 37 with equal probability.

See The Solution Submitted by Brian Smith    
Rating: 2.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(3): solution - Charlie? | Comment 16 of 26 |
(In reply to re(2): solution - Charlie? by Thalamus)

Since you are using 6 calls to RNG for each 1-64 number but throwing away 27/64 of them, the average number of calls per 1-37 number is 6*64/37= 10.4.
  Posted by Charlie on 2004-06-15 20:27:24

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