Rubbish Calculator

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int func,num1,num2;
    float result;
    printf("Welcome to the world's most rubbish calculator\n\n");
    printf("What function do you require?\n");
    printf("Press 1 for addition\n");
    printf("Press 2 for subtraction\n");
    printf("Press 3 for multiplication\n");
    printf("Press 4 for division\n");
    scanf("%d",&func);
    printf("\nEnter your first value\n");
    scanf("%d",&num1);
    printf("\nEnter your second value\n");
    scanf("%d",&num2);
    switch(func)
    {
        case 1:result = num1 + num2;
            break;
        case 2:result = num1 - num2;
            break;
        case 3:result = num1 * num2;
            break;
        case 4:result = (float)num1 / (float)num2;
            break;
        default: printf("\nERROR! I have no idea what you are on about mate!\n");
            return 1;
    }
    printf("\nYour answer is... %g\n",result);
    return 0;
}