// Program file:  simpleif.cpp
// This program demos if statements

#include <conio.c>
#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
    int n1, n2, n3, n4;
    char c1, c2;
    
    clrscr();
    cout << "Enter 3 integer numbers and press enter:  ";
    cin  >> n1 >> n2 >> n3;
    cout << "Enter 2 letters and press enter:          ";
    cin  >> c1 >> c2;
    cout << endl << endl;
    cout << "n1 = " << n1 << "  n2 = " << n2 << "  n3 = " << n3 << "  n4 = " << n4 << endl;
    cout << "c1 = " << c1 << "  c2 = " << c2 << endl << endl;
    
    if ( n1 > 5 )
        cout << "n1 is greater than 5" << endl;
    
    if ( n1 >= n2 )
        cout << "n1 is greater than or equal to n2" << endl;
    else
        cout << "n1 is not greater than or equal to n2" << endl;
        
    if ( n2 < n3 )
    {
        n4 = n1 + n2;
        cout << "n2 is less than n3";
        cout << " and n4 = " << n4 << endl;
    }
    else
        cout << "n2 is not less than n3" << endl;
    
    if ( n2 > 1 && n2 < 10)
        cout << "n2 is in the range of 2-9" << endl;
    else
    {
        cout << "n2 is out of the range of 2-9" << endl;
        n4 = n2;
        cout << "n2 = " << n2 << "  and n4 = " << n4 << endl;
    }
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    if ( n1 < n2 || n2 < n3 )
        if ( n1 < n2 )
        {
                cout << "n1 is less than n2 but ";
                cout << "n2 may not be less than n3" << endl;
        }
        else
                cout << "n2 is less than n3" << endl;
    else
    {
        cout << "n1 is not less than n2";
        cout << " and n2 is not less than n3" << endl;
    }    
    
    if ( c1 == c2 )
        cout << "c1 is equal to c2" << endl;
    
    if ( c1 != c2 )
        cout << "c1 is not equal to c2" << endl;
    else
        cout << "c1 is equal to c2" << endl;

    getch();
    return 0;
}