Having trouble with some HW and dont want the answers, just looking for some ste

Question

Having trouble with some HW and dont want the answers, just looking for some step-by-step directions on how one would go about creating the following C++ code.

1. Design a function whose task is to robustly confirm the validity of the user’s input for a dimension (the user’s input will occur in main). When an incorrect value for a dimension has been entered, the function should output a message to those given below and prompt the user to re-enter the dimension. The function should return to the function call a valid value.
“The height of a rectangle must be greater than zero.” (when checking the input for height of a rectangle)
“The radius of a sphere must be greater than zero.” (when checking the input for radius of a sphere)

will rate!

Explanation / Answer

#include<iostream>
using namespace std;

double readHeight(int Validity)
{
double height1;
if(Validity == 0)
{

cout<<"The height of a rectangle must be greater than zero"<<endl;
cout<<"Re-Enter the Height"<<endl;
cin>>height1;
}

return height1;
}

double readRadius(int validity)
{
double radius1;
if(validity == 0)
{

cout<<"The radius of a sphere must be greater than zero"<<endl;
cout<<"Re-Enter Radius"<<endl;
cin>>radius1;
}
return radius1;
}

int main()
{
double height, radius;

int validity1, validity2;
cout<<"Enter Height of An Reactange"<<endl;
cin>>height;
if(height > 0)
{
validity1 = 1;
cout<<"Height of Reactangle is : "<<height<<endl;
}
else
{
cout<<"Height of Reactangle is : "<<readHeight(0)<<endl;
}

cout<<"Enter Radius of sphere"<<endl;
cin>>radius;
if(radius > 0)
{
validity2 = 1;
cout<<"Radius of Sphere is "<<radius<<endl;
}
else
{
cout<<"Height of Reactangle is : "<<readRadius(0)<<endl;
}

return 0;
}

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