How to have multiple possible inputs for a code in C++?

Question

Okay so its kinda hard to explain but I'll try my best. I'm trying to code different possible inputs that have the same result.
This is what I have/trying to do : cout<< "(d/D/2) - Double Star Polygon"<<endl;
What do I assign d, D, and 2 ?
Basically if the user inputs d/D/2 it outputs their selection as well as the "Double Star Polygon" and if the user inputs anything different it states that their input is invalid.
Hopefully one of you can help.

Answer 1

Can you show your code?

Answer 2

yea, i'm trying to calculate different types of stars based on what the user inputs, this is what i have so far:

#include <iostream>
#include <iomanip>
#include <cmath>
#include <string>
using namespace std;

int main(){

double length_Long = 0;

const double PI = 3.141592653589793;

double length_Short = 0;

double height = 0;

double height_Long = 0;

double height_Short = 0;

double base = 0;

double length = 0;

double diameter = 0;

double perimeter = 0;

double area = 0;

double base_Length = 0;

double perimeter_Length = 0;

double edge_Length = 0;

double inner_Angle = 0;

double outer_Angle = 0;

double spike_Base = 0;

double spike_Height = 0;

double chord_Length = 0;

double number_of_Points = 0;

cout<<"*******************************************"<<endl;

cout<< "* Rebel Alliance Computation Support"<<endl;

cout<< "* Star area calculator"<<endl;

cout<< "*******************************************"<<endl;

cout<< " "<<endl;

cout<< "(d/D/2) - Double Star Polygon"<<endl;

cout<< "(t/T/3) - Three Star Polygon"<<endl;

cout<< "(p/P) - Polygram Polygon"<<endl;

cout<< "(q/Q) - Quit"<<endl;

Answer 3

I applied that to the first part of the code:

if(user_Input == 'd' || user_Input == 'D' || user_Input == '2')
{
cout<<"Your selection: "<<user_Input<<endl;
cout<<"Double Star Polygon Calculator"<<endl;
}

and when i run the program and input any of the three possible inputs it just says press any key to continue. why isn't it displaying what its suppose to do?

Answer 4

yea my bad, here is the link, hopefully it works https://code.sololearn.com/cyJ0IjKJHewZ