// Program to perform Arithmetic Operations using functions - Type 4

#include <stdio.h>

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

int sub(int a, int b)
{
    return a - b;
}

float mul(float x, float y)
{
    return x * y;
}

float div(float x, float y)
{
    return x / y;
}

void main()
{
    int operation;
    int a, b;
    float num1, num2;
    printf("-----Select the Operation------\n");
    printf("1. Addition\n2. Subtraction\n3. Multiplication\n4. Division\n");
    printf("Enter the corresponding number of Operation: ");
    scanf("%d", &operation);

    switch (operation)
    {
    case 1:
        printf("Enter 2 numbers: \n");
        scanf("%d\n%d", &a, &b);
        printf("Addition is: %d", add(a, b));
        break;

    case 2:
        printf("Enter 2 numbers: \n");
        scanf("%d\n%d", &a, &b);
        printf("Subtraction is: %d", sub(a, b));
        break;

    case 3:
        printf("Enter 2 numbers: \n");
        scanf("%f\n%f", &num1, &num2);
        printf("Multiplication is: %f", mul(num1, num2));
        break;

    case 4:
        printf("Enter 2 numbers: \n");
        scanf("%f\n%f", &num1, &num2);
        printf("Division is: %f", div(num1, num2));
        break;

    default:
        printf("Wrong input");
    }
}