Answer:
Here is a sample program demonstrating the use of a variable:
#include <iostream>
using namespace std;
int main()
{
int thisisanumber;
cout<<"Please enter a number: ";
cin>> thisisanumber;
cin.ignore();
cout<<"You entered: "<< thisisanumber <<"n";
cin.get();
}</iostream>
#include <iostream>
using namespace std;
int main()
{
int thisisanumber;
cout<<"Please enter a number: ";
cin>> thisisanumber;
cin.ignore();
cout<<"You entered: "<< thisisanumber <<"n";
cin.get();
}</iostream>
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