1127: Rightmost Digit（最后一位数字）
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题目描述
Given a positive integer N, you should output the most right digit of N^N.
输入
The input contains several test cases. The first line of the input is a single integer T which is the number of test cases. T test cases follow.
Each test case contains a single positive integer N(1<=N<=1,000,000,000).
输出
For each test case, you should output the rightmost digit of N^N.
样例输入 Copy
2
3
4
样例输出 Copy
7
6
提示
In the first case, 3 * 3 * 3 = 27, so the rightmost digit is 7. In the second case, 4 * 4 * 4 * 4 = 256, so the rightmost digit is 6.
利用快速幂取模的方法求解，该方法基于以下公式：
(a*b)%m=((a%m)*(b%m))%m