6660: MiaoWu's Function
金币值:2
定数:1
时间限制:1.000 s
内存限制:128 M
正确:1
提交:1
正确率:100.00% 命题人:
题目描述
Given n,k and the function f(n,k) = 1^k + 2^k + ... + n^k , you're supposed to calculate it.
输入格式
Multiple test cases.
Each line contains two numbers n,k(1<=n,k<=10^9)
输出格式
Output the last digit of the function f(n,k)
输入样例 复制
1 1
8 4
2 5
3 2
5 2
8 3
2 4
输出样例 复制
1
2
3
4
5
6
7