# Practice questions on Variables and literals

## Level 1

1.
Store two integers in two variables x and y. Print the sum of the two.
```#include <iostream>
int main()
{
using namespace std;
int x = 3;
int y =5;
cout << x+y << endl;
return 0;
}
```

2.
Store two integers in two variables x and y. Print the product of the two.
```#include <iostream>
int main()
{
using namespace std;
int x = 3;
int y =5;
cout << x*y << endl;
return 0;
}
```

3.
Write a C++ program to take two integer inputs from user and print sum and product of them.
```#include <iostream>
int main()
{
using namespace std;
int x;
int y;
cin >> x; //taking input for x
cin >> y; //taking input for y
cout << x+y << endl;
cout << x*y << endl;
return 0;
}
```

4.
Take two integer inputs from user. First calculate the sum of two then product of two. Finally, print the sum and product of both obtained results.
```#include <iostream>
int main()
{
using namespace std;
int x;
int y;
cin >> x; //taking input for x
cin >> y; //taking input for y
int sum = x+y;
int prod = x*y;
cout << sum+prod << endl;
cout << sum*prod << endl;
return 0;
}
```

5.
Write a program to take input of length and breadth of a rectangle from the user and print its area.
```#include <iostream>
int main()
{
using namespace std;
int length;
cout << "Enter value of length" << endl;
cin >> length;
cout << "Enter value of breadth" << endl;
cin >> breadth; //taking input for y

cout << "Area is " << area << endl;
return 0;
}
```

6.
Write a C++ program to print an int, a double and a char on screen.
```#include <iostream>
int main()
{
using namespace std;
int x;
double y;
char z;
cout << "Enter value of a int, double and a char" << endl;
cin >> x;
cin >> y;
cin >> z;

cout << "int is " << x << " double is " << y << " char is " << z << endl;
return 0;
}
```

7.
Print the ASCII value of the character 'h'.
```#include <iostream>
int main()
{
using namespace std;
cout << "ASCII value of h is " << (int)'h' << endl;
return 0;
}
```

8.
Write a program to assign a value of 100.235 to a double variable and then convert it to int.
```#include <iostream>
int main()
{
using namespace std;
double x = 100.235;
cout << (int)x << endl;
return 0;
}
```

9.
Write a program to add 3 to the ASCII value of the character 'd' and print the equivalent character.
```#include <iostream>
int main()
{
using namespace std;
char x = 'd'+3;
cout << x << endl;
return 0;
}
```

10.
Write a program to add an integer variable having value 5 and a double variable having value 6.2.

11.
Write a program to find the square of the number 3.9.

12.
Take value of length and breath of a rectangle from user as float. Find its area and print it on screen after type casting it to int.

13.
Take a char input from user and print it's ASCII value.