题解

#include<iostream>
using namespace std;
int main()
{
long long n,m,count=1;
cin>>n>>m;
for(int i=1;i<=m;i++)
{
count*=n;
if(count>=1000000000)
{
cout<<"-1";
return 0;
}
}
if(count<=1000000000)cout<<count;
else cout<<"-1";
}