r*****t
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graceman (老牛) 于 (Tue Jan 30 19:45:52 2007) 提到:
想了很久， 仍然没有做出来， 看到这里的高手挺多，发出来问问。
A,B两个人抛硬币（假设都是fair coin）， set X to be the number of tosses when
A get 2 consecutive heads, y to be the number of tosses when B get 3
consecutive heads, find the probability P{X>Y}.
I want the exact solution, not based on simulation.
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netghost (Up to Isomorphism) 于 (Tue Jan 30 19:57:08 2007) 提到:
题没说清楚.
when
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