#include <iostream.h>
#include <math.h>
#include <conio.h>

void pause (void) {
  cout << "Hit any key to continue...";
  getch ();
}


void main (void) {

  double pipe_diameter /* internal */, shortest_diagonal,
         width, height, length;

  cout << "Enter internal diameter of the pipe: ";
  cin >> pipe_diameter;

  cout << "Enter width, height, and length of the object: ";
  cin >> width >> height >> length;

  if ((pipe_diameter <= 0) || (width <= 0) || (height <= 0) || (length <= 0)) {

    cout << "The dimensions entered are unreasonable." << endl;

  } else {

    if ((width > height) && (width > length)) {

      // width is the biggest dimension - use height and length
      shortest_diagonal = sqrt((height * height) + (length * length));

    // if width is not the biggest dimension, either height or length must be

    } else if (height > length) {

      // height is the biggest dimension - use width and length
      shortest_diagonal = sqrt((width * width) + (length * length));

    } else {

      // length must be the biggest dimension - use height and width
      shortest_diagonal = sqrt((height * height) + (width * width));

    }

    if (shortest_diagonal <= pipe_diameter) {
      cout << "The object will fit through the pipe." << endl;
    } else {
      cout << "The object will not fit through the pipe." << endl;
    }

  }

  pause ();

}