快速幂
1 #include <iostream> 2 #include <cstdio> 3 #include <cstring> 4 using namespace std; 5 #define mod 1003 6 7 int quick_power(int a, int b) 8 { 9 if(a == 0) return 0; 10 int ret = 1; 11 while(b) 12 { 13 if(b & 1) 14 ret = ret * a % mod; 15 a = a * a % mod; 16 b /= 2; 17 } 18 return ret; 19 } 20 21 int main() 22 { 23 int T; 24 scanf("%d", &T); 25 while(T--) 26 { 27 int m, n; 28 scanf("%d %d", &m, &n); 29 printf("%d\n", quick_power(m % mod, n)); 30 } 31 }
