sicily 1394. Root of the Problem

#include<iostream>
#include<cmath>
#include<cstdlib>
using namespace std;
int main()
{
int b,n,s,t,s1,t1;
while(cin>>b>>n&&b)
{
s=floor(pow(double(b),1.0/n));
t=ceil(pow(double(b),1.0/n));
if(s==t)
cout<<s<<endl;
else
{
s1=pow(double(s),double(n));
t1=pow(double(t),double(n));
if(abs(s1-b)<abs(t1-b))
cout<<s<<endl;
else
cout<<t<<endl;
}
}
return 0;
}

转载于:https://www.cnblogs.com/mjc467621163/archive/2011/07/05/2097887.html