标签:des style blog os io for 2014 div
Description
Input
Output
Sample Input
2 3 4
Sample Output
7 6
题意:取N^N的最后一位
思路:裸的快速幂取模
#include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> typedef long long ll; using namespace std; int pow_mod(int a, int n, int m) { if (n == 0) return 1; if (n == 1) return a%m; int x = pow_mod(a, n/2, m); ll ans = (ll) x*x%m; if (n % 2 == 1) ans = ans * a % m; return (int)ans; } int main() { int t; int n; scanf("%d", &t); while (t--) { scanf("%d", &n); ll ans = pow_mod(n, n, 10); cout << ans << endl; } return 0; }
HDU - 1061 Rightmost Digit,布布扣,bubuko.com
标签:des style blog os io for 2014 div
原文地址:http://blog.csdn.net/u011345136/article/details/38235291