回複：Quant麵試題：喝醉了（2.5星）

來源: 於 2009-08-07 10:27:26 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

E(50) = 0.5*(E(49)+E(51))+1, and E(49)=E(51)

btw, if the result is correct, there cannot be exactly one equation wrong (either all correct or at least two wrong).