想明白了，A换到C，不是A和C中重新选，而是剩下只有C的pool里面选C，所以B的1/3概率不能分配给A，只能给C。

来源: rulvbobing 于 2024-02-18 11:05:40 [旧帖] [给我悄悄话] 本文已被阅读：次

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