1 #include<iostream> 2 #include<stdio.h> 3 #include<math.h> 4 using namespace std; 5 6 int main() 7 { 8 //freopen("acm.acm","r",stdin); 9 long double num; 10 long double k; 11 while(cin>>num>>k) 12 { 13 cout<<pow(k,1.0/num)<<endl; 14 } 15 }
原文：http://www.cnblogs.com/gavinsp/p/4566654.html