Further Practice (1a)
-----------------------
#include <iostream>

using namespace std;

int main()
{
	int number, mark;
	char grade;

	cout << "Number of assignment done = ";
	cin >> number;
 	cout << "Examination mark = ";
	cin >> mark;

	if (mark >= 30)
	{
		if (number >= 6)
			grade = 'A';
		else
			grade = 'B';
	}
	else
	{
		if (number >= 6)
			grade = 'C';
		else
			grade = 'F';
	}
  
	cout << "Grade = " << grade << endl;

	return 0;
}


Further Practice (1b)
-----------------------
#include <iostream>

using namespace std;

int main()
{
	int number, mark;
	char grade;

	cout << "Number of assignment done = ";
	cin >> number;
 	cout << "Examination mark = ";
	cin >> mark;

	if ((mark >= 30) && (number >= 6))
		grade = 'A';
	else if ((mark >= 30) && (number < 6))
		grade = 'B';
	else if ((mark < 30) && (number >= 6))
		grade = 'C';
	else
		grade = 'F';
  
	cout << "Grade = " << grade << endl;

	return 0;
}


Further Practice (2)
---------------------
#include <iostream>

using namespace std;

int main()
{
	int number, x, y;

	cout << "x = ";
	cin >> x;
	cout << "y = ";
	cin >> y;

	if (x % 2 == 0)
		number = x+1;
	else
		number = x;

	while (number <= y)
	{
		cout << number << ", ";
		number = number + 2;
	}
  
	cout << endl;

	return 0;
}


Further Practice (3)
---------------------
#include <iostream>

using namespace std;

int main()
{
	float number, sum=0;
	int c=1, n=0;

	while (c == 1)
	{
		n = n + 1;		
		cout << "Number " << n << " = ";
		cin >> number;
		sum = sum + number;
		cout << "Continue (yes=1/no=0)? ";
		cin >> c;
	}

	cout << "Sum = " << sum << endl;

	return 0;
}


Further Practice 4
--------------------
#include <iostream>
#include <time.h>

using namespace std;

int main()
{
	int x, y;
	int outcome, guess;

	srand(time(NULL));
	x = rand() % 17 + 1;

	while (1)
	{
		cout << "Random number = " << x << endl;
		cout << "More (1) or Less (0) > ";
		cin >> guess;

		y = rand() % 17 + 1;
		if (y == x)
			outcome = 2;
		else if (y > x)
			outcome = 1;
		else
			outcome = 0;

		if (guess == outcome)
			cout << "You are right ......" << endl << endl;
		else
			cout << "You are wrong." << endl << endl;

		x = y;
	}

	return 0;
}


Further Practice 5
--------------------
#include <iostream>

using namespace std;

int main()
{
	int i, x;
	int number[10]={36, 81, 45, 17, 69, 3, 23, 92, 70, 54};

	while (1)
	{
		i = 0;
		while (i < 10)
		{
			cout << number[i] << ", ";
			i = i + 1;
		}
		cout << endl << endl;

		cout << "Array index = ";
		cin >> i;
		while ((i < 0) || (i >= 10))
		{
			cout << "Array index = ";
			cin >> i;
		}

		cout << "Reset value = ";
		cin >> x;
		cout << endl;

		number[i] = x;
	}

	return 0;
}


Further Practice 6
--------------------
#include <iostream>
#include <time.h>

using namespace std;

int main()
{
	int i, x, y, temp;
	int number[10];

	i = 0;
	while (i < 10)
	{
		number[i] = i;
		i = i + 1;
	}

	srand(time(NULL));

	i = 0;
	while (i < 100)
	{
		x = rand() % 10;
		y = rand() % 10;

		temp = number[x];
		number[x] = number[y];
		number[y] = temp;

		i = i + 1;
	}

	cout << "the array elements in random order are " << endl;

	i = 0;
	while (i < 10)
	{
		cout << number[i] << ", ";
		i = i + 1;
	}
	cout << endl << endl;

	return 0;
}