Just some miscellaneous stuff.

FizzBuzz.cpp

// Fizzbuzz

#include <iostream>
using std::cout;
using std::endl;

int main () {
	for (int i = 0; i <= 100; i++) {
		if (i % 15 == 0)
			cout << i << ": FizzBuzz";
		else if (i % 3 == 0)
			cout << i << ": Fizz";
		else if (i % 5 == 0)
			cout << i << ": Buzz";
		else
			cout << i;

		cout << endl;
	}

	system("pause");
	return 0;
}

Swap.cpp

// Swapping without temporary variable

#include <iostream>
using std::cout;
using std::endl;
using std::cin;

int main () {
	int a, b;
	cout << "Enter two integers: ";
	cin >> a >> b;

	cout << "a: " << a << ", b: " << b << endl;

	a = a + b;
	b = a - b;
	a = a - b;

	cout << "a: " << a << ", b: " << b << endl;

	system("pause");
	return 0;
}