回复1...1-11..=1.1=5.

来源: 于 2010-01-09 12:33:41 [旧帖] [给我悄悄话] 本文已被阅读：次

1...1-11..=1.1=5
binary. 1+1=2.Let S(2)=1...1 and s(2)=1.1 we have S(2)-s(2)=5.