harry potter wing selection

 

1.

Optional: Little Mac is an interplanetary space boxer, who is trying to win championship belts for various weight categories on other planets within the solar system.

Write a space.cpp program that helps him keep track of his target weight by:

1.     It should ask him what his earth weight is.

2.     Ask him to enter a number for the planet he wants to fight on.

3.     It should then compute his weight on the destination planet.

Here is the table of conversion:

#	Planet	Relative Gravity
1	Mercury	0.38
2	Venus	0.91
3	Mars	0.38
4	Jupiter	2.34
5	Saturn	1.06
6	Uranus	0.92
7	Neptune	1.19

Hint

To compute his weight on the planet he is fighting on, multiply his earth weight and the relative gravity of that planet.

Try using both if, else if, else and a switch statement!

Answer:

#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";

 

}