space.cpp

#include <iostream>

int main() {

  double weight;
  int x;

  std::cout << "Please enter your current earth weight: ";
  std::cin >> weight;

  std::cout << "\nI have information for the following planets:\n\n";
  std::cout << "   1. Venus   2. Mars    3. Jupiter\n";
  std::cout << "   4. Saturn  5. Uranus  6. Neptune\n\n";

  std::cout << "Which planet are you visiting? ";
  std::cin >> x;

  if (x == 1) {

    weight = weight * 0.78;

  } else if (x == 2) {

    weight = weight * 0.39;

  } else if (x == 3) {

    weight = weight * 2.65;

  } else if (x == 4) {

    weight = weight * 1.17;

  } else if (x == 5) {

    weight = weight * 1.05;

  } else if (x == 6) {

    weight = weight * 1.23;

  }

  std::cout << "\nYour weight: " << weight << "\n";

  return 0;

}