#include <iostream>
#include<cmath>
#include<cstdlib>

using namespace std;

int main()
{
	double LBS, KG, NKG;
	double M, D, R, G, g, Eg, Cg, SoL, SoS, SoLD, SoSD;
	int planetNumber
		//int Mercury, Venus, Moon, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Sun;

		// Mercury = 1;
		// Venus = 2;
		// Moon = 3;
		// Mars = 4;
		// Jupiter = 5;
		// Saturn = 6;
		// Uranus = 7;
		// Neptune = 8;
		// Pluto = 9;
		// Sun = 0;

	cout << "Please enter your current weight on earth in pounds";
	cin>>LBS;

	double const G = 6.674*pow(10.0, -11);
	double const Eg = 9.81;
	double const SoL = 6.71*pow(10.0, 8);
	double const SoS = 761;

	cout << "Enter a number for a celestial body from the list below" << "Mercury is 1" << "Venus is 2" << "The Moon is 3" << "Mars is 4" << "Jupiter is 5" << "Saturn is 6" << "Uranus is 7" << "Neptune is 8" << "Pluto is 9" << "The Sun is 10" << endl;
	cin >> planetNumber;

	if (planetNumber == 1)
	{
		M = 3.30*pow(10.0, 23);
		D = 48;
		R = 2440;
	}
	else if (planetNumber == 2)
	{
		M = 4.87*pow(10.0, 24);
		D = 28;
		R = 6051.8;
	}
	else if (planetNumber == 3)
	{
		M = 7.35*pow(10.0, 22);
		D = 0.226;
		R = 1738;
	}
	else if (planetNumber == 4)
	{
		M = 6.42*pow(10.0, 23);
		D = 34;
		R = 3397;
	}
	else if (planetNumber == 5)
	{
		M = 1.90*pow(10.0, 27);
		D = 346;
		R = 71492;
	}
	else if (planetNumber == 6)
	{
		M = 5.68*pow(10.0, 26);
		D = 746;
		R = 60268;
	}
	else if (planetNumber == 7)
	{
		M = 8.68*pow(10.0, 25);
		D = 1600;
		R = 25559;
	}
	else if (planetNumber == 8)
	{
		M = 1.02*pow(10.0, 26);
		D = 2700;
		R = 24766;
	}
	else if (planetNumber == 9)
	{
		M = 1.27*pow(10.0, 22);
		D = 2600;
		R = 1137;
	}
	else if (planetNumber == 10)
	{
		M = 1.99*pow(10.0, 30);
		D = 91;
		R = 695000;
	}

	g = G*(M / (R*R));
	Cg = g / Eg;
	NKG = KG*Cg
	SoLD = D / SoL;
	SoSD = D / SoS;

	cout << "This your mass on the selected celestial body:" << NKG << endl;
	cout << "This is the time, in hours, it would take to get to your selected celestial body traveling at the speed of light:" << SoLD << endl;
	cout << "This is the time, in hours, it would take to get to your selected celestial body traveling at the speed of sound:" << SoSD << endl;
}