POJ 2105

#include <iostream>
#include <cmath>
#include <string>
using namespace std;

int main()
{
//freopen("acm.acm","r",stdin);
int num;
int i;
int j;
int tem;
int index;
int sum;
string s;
cin>>num;
getchar();
while(num --)
{
index = 0;
getline(cin,s);
for(i = 0; i < 4; ++ i)
{
sum = 0;
for(j = index; j < 8+index; ++ j)
{
tem = s[j] - '0';
if(tem == 1)
sum += pow(double(2),index+8-j-1)*tem;
}
index += 8;
if(i != 3)
cout<<sum<<".";
else
cout<<sum;
//    cout<<"    index "<<index<<endl;
}
cout<<endl;
}
}