CPTTRN2 - Character Patterns (Act 2)

problem id:-http://www.spoj.com/problems/CPTTRN2/

code:-

#include <iostream>
using namespace std;

int main() {
int t;
cin>>t;
while(t--)
{
int n,m;
cin>>n>>m;
for(int i=0;i<n;++i)
{
for(int j=0;j<m;++j)
{
if(i==0||i==n-1||j==0||j==m-1)
cout<<"*";
else
cout<<".";
}
cout<<'\n';
}
cout<<'\n';
}
return 0;
}