问题描述
Problem Description
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 y+f(x).
Input
On the first line, contains a number T.then T lines follow, each line is a case.each case contains a letter and a number.
Output
for each case, you should the result of y+f(x) on a line.
Sample Input
6
R 1
P 2
G 3
r 1
p 2
g 3
Sample Output
19
18
10
-17
-14
-4
问题分析
Problem Analyse
我们定义f(A) = 1, f(a) = -1, f(B) = -2, ... f(Z) = -26;
给你一个字母x 以及一个数字y ，要求你输出 y + f(x)的值。
简单模拟。
Algorithm Analyse
直接按提议来。可以用哈希。也可以用数学公式。