一、题目
we define f(A) 1, f(a) -1, f(B) 2, f(b) -2, … f(Z) 26, f(z) -26; Give you a letter x and a number y , you should output the result of yf(x).
Input
On the first line, contains a number T.then T lines follow, each line is a case.each case …
91、6块300G的硬盘做raid5,新的设备容量是多大(C)
A 900G B 1800G C 1500G D 300G
6300G−300G 1500G 由于一块硬盘用于奇偶校验,所以设备容量将是1500G.
Raid 5是一种磁盘阵列,将数据分散到多个硬盘上以提高性能和可…