```c

include

// Function to calculate the sum of two numbers int add(int a, int b) { return a + b; }

// Function to calculate the difference of two numbers int subtract(int a, int b) { return a - b; }

// Function to calculate the product of two numbers int multiply(int a, int b) { return a * b; }

// Function to calculate the quotient of two numbers float divide(int a, int b) { if (b != 0) { return (float)a