Logo.cpp

#include "Logo.h"
#include <string>
#include <iostream>
Logo::Logo(unsigned n):num(n),numDashes(n),numStars(n)
{
	char dash = '-';
	char star = '*';
	unsigned totalLines = num + 1; //Total lines of the logo are always n + 1
	/*
		We see that every line of the first part of the logo
		consists of 3 times n*dashes and 2 times n*stars,
		so since the whole line consists of two parts( two Ms ), we multiply
		this by two and on every line there will always be 2 * 3 times n * dashes and
		2 * 2 times n * stars, so we always have to print 6 times dashes and 4 times stars
	*/

	//start of first part
	
	unsigned wholeLineDashes = 6;
	unsigned wholeLineStars = 4;
	
	unsigned innerDashes = n; //on the first half(part) the pattern follows that inner dashes always start n

	/*
		We break our logo into two parts: 
		1st part is the first (totalLines / 2) lines
		2nd part is the other half
	*/


	for (unsigned i = 0; i < totalLines / 2; i++)
	{
		while(wholeLineDashes > 0)
		{
			if (wholeLineStars != 3 && wholeLineStars != 1)
			{
				printNTimes(dash, numDashes);
				wholeLineDashes--;
			}

			if (wholeLineDashes != 3 && wholeLineStars > 0) //we check if we have reached the middle of the line ( the end of first M )
			{
				printNTimes(star, numStars);
				wholeLineStars--;
				if (wholeLineStars == 3 || wholeLineStars == 1) //we print the inner dashes always after 1st stars and after 3rd stars 
				{
					printNTimes(dash, innerDashes);
					wholeLineDashes--;
				}
			}
		}
		numStars += 2; //the pattern of M says that on the first half we increment stars by 2
		numDashes -= 1; // decrement dashes by 1
		innerDashes -= 2; //and decrement inner dashes by 2
		wholeLineDashes = 6; //reseting value
		wholeLineStars = 4; //reseting value
		std::cout << std::endl;
	}
	
	//end of first part


	//start of second part

	//setting the initial values that the pattern follows for the second half (part)

	numStars -= 2; //resetting to the initial value of numStars
	wholeLineDashes = 8;
	wholeLineStars = 6;
	innerDashes = 1; //in the patters on the second half , inner dashes always start with 1
	
	
	for (unsigned i = 0; i < totalLines / 2; i++)
	{
		unsigned twoMs = 2;//we want the next loop(while) to execute two times, one time for each M in the logo,
						  // and since there are two M's , we initialize this variable with 2
		while (twoMs)
		{
			//This is the pattern for the second part of the logo(lines after totalLines / 2 lines) for the first M
			//and this while loop should iterate 2 times since there are two identical M's in the logo
			printNTimes(dash, numDashes);
			printNTimes(star, n);
			printNTimes(dash, innerDashes);
			printNTimes(star, numStars);
			printNTimes(dash, innerDashes);
			printNTimes(star, n);
			printNTimes(dash, numDashes);
			twoMs--;
		}
		numDashes--;
		innerDashes += 2;
		numStars -= 2;
		std::cout << std::endl;
	}
}
void Logo::printNTimes(char c, int n)
{
	// character c will be printed n times 
	std::cout << std::string(n, c);
}

Logo.h

#pragma once
class Logo
{
private:
	unsigned num; //This is initialized to N the user enters
	unsigned numDashes;
	unsigned numStars;
public:
	Logo(unsigned); //constructor
	void printNTimes(char,int); //prints a charater N times. We will use this to print dashes and stars N times
};

main.cpp

#include <iostream>
#include "Logo.h"

using namespace std;
int main()
{
	cout << "Enter N: " << endl;
	unsigned n = 0;
	cin >> n;
	while (n <= 2 || n >= 10000 || n % 2 == 0)
	{
		cout << "Incorrect digit!\nN must be at least 3, no bigger than 10 000 and an odd number. Re enter N: " << endl;
		cin >> n;
	}

	Logo l(n);

	system("PAUSE");
}