Thread: New to c++, could use some guidance

Ok, so I'm still trying to get a hang of all these different things I'm learning and obviously not likely making good programing sense yet, but I was wondering if anybody got some good pointers on what I've done so far.

Code:

#include <iostream>


using namespace std;


struct error {
	string invalid;
};


int main()
{
	// Initializing struct error for variable selection
	error selection;
		// Text for selection in invalid
		selection.invalid = "--- Invalid selection! ---";


	// Adding Section & Chapter text to array 'lable'
	string lable[4][6];
		// Overall header/title
		lable[0][0] = "Quiz: The basics of C++";


		// Section titles
		lable[1][0] = "Introduction and Basic C++ Features";
		lable[2][0] = "Pointers, Arrays and Strings";
		lable[3][0] = "File IO, command line arguments and intro to classes";


		// Chapter titles - Section 1
		lable[1][1] = "Intro";
		lable[1][2] = "If Statements";
		lable[1][3] = "Loops";
		lable[1][4] = "Functions";
		lable[1][5] = "Switch case";


		// Chapter titles - Section 2
		lable[2][1] = "Accessing Memory with Pointers";
		lable[2][2] = "Structures in C++";
		lable[2][3] = "Storing data with Arrays";
		lable[2][4] = "Character Strings in C++";
		lable[2][5] = " ";


		// Chapter titles - Section 3
		lable[3][1] = "File I/O";
		lable[3][2] = "Typecasting";
		lable[3][3] = "Classes and introduction to object-oriented programming";
		lable[3][4] = "Inline functions";
		lable[3][5] = "Command line arguments";


	// Inistializing string(s)
	string title;
		title = lable[0][0];


	// Initializing integers and setting default values
	int x;
	int y;
	int z = 5;
	int section_id = 0;
	int chapter_id = 0;
	int sctn = 0;
	int chptr = 0;


	cout << title << endl << endl;


	while (sctn == 0 || sctn > 3)
	{
		// Get Section text for selection and asign selection
		cout << "Please select a section (1-3):" << endl;
		for (x=1; x<4; x++)
		{
			y=chptr;
			section_id = x;
			cout << section_id << ". " << lable[x][y] << endl;
		}
		cin >> sctn;
		cin.ignore();
		// change z depending on nr of chapter in section
		if (sctn==2) {z=4;}


		// Error check
		if (sctn == 0 || sctn > 3)
		{
			cout << selection.invalid << endl << endl;
		}
	}


	while (chptr == 0 || chptr >= z)
	{
		// Get Section text for selection
		cout << endl << endl;
		cout << lable[sctn][y] << endl;


		// Get Chapter text for selection and asign selection
		cout << endl << endl;
		cout << "Please select a chapter (1-" << z << "):" << endl;


		for (y=1; y<=z; y++)
		{
			x=sctn;
			chapter_id = y;
			cout << chapter_id << ". " << lable[x][y] << endl;
		}
		cin >> chptr;
		cin.ignore();


		// Error check
		if (chptr == 0 || chptr >= z)
		{
			y = 0;
			cout << selection.invalid << endl << endl;
		}
	}


	if (sctn!=0 && chptr!=0)
	{
		// Temporary selection output
		cout << "----------------------------------" << endl << endl;
		cout << "You have selected section-number: " << sctn << endl;
		cout << "The title of the section is: " << lable[sctn][0] << endl;
		cout << endl << endl;
		cout << "You have selected chapter-number: " << chptr << endl;
		cout << "The title of the chapter is: " << lable[sctn][chptr] << endl;
		cout << "----------------------------------" << endl << endl;
		cout << "The array-code is: lable[" << sctn << "][" << chptr << "]" << endl;
	}
}

Please keep in mind, that I'm practicing all the different things in the tutorials and try to find ways to use them, even when it's not necessarily needed. I also think that, if I understand it correctly, my use of the array is probably something a coder shouldn't do, do to memory usage?

Well, at least I'm happy to be starting to write code without having to look at the examples so much anymore :P

edit: oh, i suppose i don't need the last If statement, do I?