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Slayer (slayer) 于 (Sat Apr 25 00:47:20 2009) 提到:
Suppose we toss a dice repeatedly until all the six numbers appear at least
once, what is the expected number of tosses?
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Jadeson (Jadeson) 于 (Sat Apr 25 00:55:30 2009) 提到:
Markov Chain阿，万能灵药。
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longtian (Something huge is on the way ...) 于 (Sat Apr 25 02:45:48 2009) 提到:
google coupon collection problem
