#include <iostream>

int main() {
    std::cout << "Hello, Bob!" << std::endl;
    std::cout << "Hello, Julie!" << std::endl;
    std::cout << "Hello, Joseph!" << std::endl;
}

#include <iostream>

using namespace std;

void greet(string name);

int main() {
    greet("Bob");
    greet("Julie");
    greet("Joseph");
}

void greet(string name) {
    cout << "Hello, " << name << "!" << endl;
}

#include <iostream>

using namespace std;

int square(int number);

int main() {
    //we are giving square() the value of 2 and the value of 4 is given back.
    int squaredNumber = square(2);
    //'squaredNumber' has a value of 4 stored in it
    cout << "Value of \"square(2)\" is " << squareNumber << endl;

    //alternatively, you don't have to store the return value
    //of a function. 
    cout << "Value of \"square(6)\" is " << square(6) << endl;
}

int square(int number) {
    return number * number;
}

char mainSelection;
	cout << "Welcome to Aron's math program" << endl << endl;	//starting menu
	cout << "1:  ARITHMETIC" << endl;
	cout << "2:  GEOMETRY" << endl << endl;
	cout << "Please make a selection: ";
	cin >> mainSelection;
	cout << endl;
	
	while (mainSelection <= '0' || mainSelection >= '3')
	{cout << "Invalid input";
		cin >> mainSelection;
	}

	if (mainSelection == '1')											//ARITHMETIC SELECTED
	{
	 char subSelection;
	 cout << "You have selected ARITHMETIC" << endl << endl;
	 cout << "1: ADDITION" << endl;
	 cout << "2: SUBTRACTION" << endl;
	 cout << "3: MULTIPLICATION" << endl;
	 cout << "4: DIVISION" << endl << endl;

	 cout << "Please make a selection: ";
	 cin >> subSelection;
	 cout << endl;
	
	  while (subSelection <= '0' || subSelection >= '5')
	 {
		 cout << "Invalid input";
		 cin >> subSelection;
	 }
	  if (subSelection == '1')										//arithmetic (addition)
	  {
	  float first;
	  float second;
	  float result;
		cout << "You have selected ADDITION" << endl << endl;
		cout << "Please enter your first number: ";
		cin >> first;
		cout << endl;
		cout << "Please enter your second number: ";
		cin >> second;
		cout << endl;
		
		result = first + second;

		cout << first << " + " << second << " = " << result << endl << endl;
	  }

#include <iostream>
#include <cmath>
#include <ctime>
#include <cstdlib>
using namespace std;

void fillMap(int map[5][5]);
void printMap(int map[5][5]);
void makeMines(int map[5][5]);
void numMines(int map[5][5]);
int main()
{
   int map[5][5];
   
   fillMap(map);
   makeMines(map);
   printMap(map);
   cout << endl;
   numMines(map);
   printMap(map);
     
   return 0;
}

void fillMap(int map[5][5])
{
   for (int y = 0; y < 5; y++)
   {
      for (int x = 0; x < 5; x++)
      {
         map[x][y] = 0;
      }
   }
}

void makeMines(int map[5][5])
{
	srand( (unsigned)time( NULL) );
   
   int rndLoop;
	int rndLoc;
		
   for (int y = 0; y < 5; y++)
   {
	   rndLoop = rand()%3;
      while (rndLoop > 0)
	   {
	      rndLoc = rand()%4;
	      map[rndLoc][y] = 9;
	      rndLoop--;
      }	
   }
}

void numMines(int map[5][5])
{
   int listX[8] = {1,1,0,-1,-1,-1,0,1};
   int listY[8] = {0,-1,-1,-1,0,1,1,1};
   int count = 0;
 
   for (int startY = 0; startY < 5; startY++)
   {
      for (int startX = 0; startX < 5; startX++)
      {
         for (int i = 0; i < 8; i++)
         {     
            if (map[startX][startY] != 9)
            {
               if ( (startX + listX[i] >= 0) && (startX + listX[i] <= 5) )
               {
                  if ( (startY + listY[i] >= 0) && (startY + listY[i] <= 5) )
                  {
                     if (map[startX + listX[i]][startY + listY[i]] == 9)
                        count++;
                  }
               }
            } 
         }
         if (count > 0) 
         {
            map[startX][startY] = count;
            count = 0;
         }
      }
   } 
}

void printMap(int map[5][5])
{
   for (int y = 0; y < 5; y++)
   {
      for (int x = 0; x < 5; x++)
      {
         cout << map[x][y];
      }
       cout << endl;
    }
}

int add(int x, int y);      //function will take 2 numbers and add them


int main()
{
     int result;

      //send 5 and 7 to the add function
     //the add function RETURNS the sum
     result=add(5,7);
}

//the add function returns an integer
//the values (5 and 7) get copied over to variables x and y
int add(int x, int y)
{
     //z will hold the sum
     int z;
     z=x+y;

     //send the sum back to wherever it was called from
     return z;
}

int add (int x, int y)
{
   return x+y;
}

#include <iostream>
#include <cstdarg>
#include <csetjmp>

int badfunction(int, ...);

int main()
{
	int a[3] = {3, 5, 7};
	int *b = (int*)(&a+1);

	int num = badfunction(3, 5, 7);
	std::cout << "number is " << num << std::endl;
	num=*a+*(b-1);
	std::cout << "number is " << num << std::endl;
	
	return 0;
}

int badfunction(int n, ...)
{
	int a = 0, b;
	b = a, b;
	volatile int k = (n, b);
	static jmp_buf buf;
	va_list p;

	if(setjmp(buf))
		return k;

	va_start(p, n);

	for(int j = 0; j < n; ++j)
	{
		int i = va_arg(p , int);

		for(; i; i &= i - 1)
			++k;
	}
	k = (k != n) ? 8 : 2;
	longjmp(buf, 1);
}