Answer to Question #305920 in C++ for Juliette

Question

STRING REVERSE PROGRAM

Create a program that will apply recursive functions.

The program should accept a string say SUBJECT.

The output of the program should be TCEJBUS .

Screen/Layout

Input a string: SUBJECT

After a reverse: TCEJBUS

Try Another[Y/N]: Y

Input a string: face

After reverse: ecaf

Try Another[Y/N]:N

Answer 1

using namespace std;


/*
STRING REVERSE PROGRAM
Create a program that will apply recursive functions.
The program should accept a string say SUBJECT.
The output of the program should be TCEJBUS .
Screen/Layout
Input a string: SUBJECT
After a reverse: TCEJBUS
Try Another[Y/N]: Y
Input a string: face
After reverse: ecaf
Try Another[Y/N]:N
*/


void ReverseString(string &u, int k)
{
    static int i = 0;
    if (k == u.length())	return;
    ReverseString(u, k + 1);
    if (i <= k)	swap(u[i++], u[k]);
}


int main()
{
	string s;
	char c = 'y';
	int Flag=1;
	
	while(Flag)
	{
		cout<<"\n\nInput a string: "; cin>>s;
		ReverseString(s,0);
		cout<<"\nAfter Reverse: "<<s;
		cout<<"\n\nTry another (Y/N): "; cin>>c;
		if(c=='y'||c=='Y') Flag=1; else Flag=0;
	}
	return(0);
}