Question

(only by if-else and nested if- else)

Write a program that ask the users to enter three characters. Then the program should display the 

following menu

1. Sort in Ascending order

2. Sort in Descending order

The program should perform sorting of these three characters in ascending or descending order as per the 

user requirement.

Answer 1

using namespace std;




int main()
{
    char a,b,c;
    int Option=3;
	while(Option)
	{
	    Option = 4; 
	    while(Option<0 || Option>2)
	    {
			cout<<"\n\tPress 1 for ascending";
    		cout<<"\n\tPress 2 for descending";
	    	cout<<"\n\tPress 0 to QUIT";
	    	cout<<"\n\tEnter Option: "; cin>>Option;
		}
		if(Option==1 || Option==2)
		{
    	cout<<"\n\tEnter numbers followed by space: ";
	    cin>>a>>b>>c;
    	if((a>=b)&&(a>=c))
    	{
        	if(b>=c)
        	{
            	if(Option==2) cout<<"\n Descending order : "<<a<<", "<<b<<", "<<c;
	            if(Option==1) cout<<"\n Ascending  order : "<<c<<", "<<b<<", "<<a;
    	    }
        	else
	        {
    	        if(Option==2) cout<<"\n Descending order : "<<a<<", "<<c<<", "<<b;
        	    if(Option==1) cout<<"\n Ascending  order : "<<b<<", "<<c<<", "<<a;
	        }
    	}
	    else if((b>=a)&&(b>=c))
    	{
        	if(a>=c)
	        {
    	        if(Option==2) cout<<"\n Descending order : "<<b<<", "<<a<<", "<<c;
        	    if(Option==1) cout<<"\n Ascending  order : "<<c<<", "<<a<<", "<<b;
	        }
    	    else
        	{
            	if(Option==2) cout<<"\n Descending order : "<<b<<", "<<c<<", "<<a;
	            if(Option==1) cout<<"\n Ascending  order : "<<a<<", "<<c<<", "<<b;
    	    }
    	}
	    else if((c>=a)&&(c>=b))
    	{
        	if(a>=b)
	        {
    	        if(Option==2) cout<<"\n Descending order : "<<c<<", "<<a<<", "<<b;
        	    if(Option==1) cout<<"\n Ascending  order : "<<b<<", "<<a<<", "<<c;
	        }
    	    else
	        {
    	        if(Option==2) cout<<"\n Descending order : "<<c<<", "<<b<<", "<<a;
        	    if(Option==1) cout<<"\n Ascending  order : "<<a<<", "<<b<<", "<<c;
	        }
    	}
    }
    else exit(0);
	}
}