URAL1001[Reverse root]

这是一道很水的题，有人会看题解吗？

CODE:

/*

PROGRAM: $PROGRAM

AUTHOR: Su Jiao

DATE: 2010-3-8

DESCRIPTION:

$DESCRIPTION

*/

#include <iostream>

using std::cin;

using std::cout;

using std::endl;

#include <cstring>

using std::memset;

#include <stack>

using std::stack;

#include <cmath>

using std::sqrt;

#include <iomanip>

using std::setiosflags;

using std::setprecision;

 

class Application

{

      stack<long long int> A;

      public:

      Application()

      {

                    long long int input;

                    while (cin>>input)

                          A.push(input);

      }

      int run()

      {

          long long int pop;

          cout<<setiosflags(std::ios::fixed)<<setprecision(4);

          while (!A.empty())

          {

                pop=A.top();

                A.pop();

                cout<<sqrt(double(pop))<<endl;

          }

          return 0;

      }

};

 

int main()

{

    Application app;

    return app.run();

}