operator

#include <stdio.h>
#include <conio.h>

float formula(float x, float y, int z);

void main()
{
	int choice;
	float num1,num2;

	printf("1-Addition");
	printf("\n2-Subtraction");
	printf("\n3-Multiplication");
	printf("\n4-Division");
	
	printf("\n1st Number: ");
	scanf("%f",&num1);
	
	printf("2nd Number: ");
	scanf("%f",&num2);
	
	printf("Type of Operation: ");
	scanf("%d",&choice);

	switch(choice) {
		case 1:
			printf("%.0f+%.0f=%.0f", num1, num2, formula(num1, num2, choice));
		break;

		case 2:
			printf("%.0f-%.0f=%.0f", num1, num2, formula(num1, num2, choice));
		break;

		case 3:
			printf("%.0f*%.0f=%.0f", num1, num2, formula(num1, num2, choice));
		break;

		case 4:
			printf("%0.f/%.0f=%.1f", num1, num2, formula(num1, num2, choice));
		break;
	}

}

float formula(float x,float y, int z) {
	switch(z) {
		case 1:
			return x + y;
		break;

		case 2:
			return x - y;
		break;

		case 3:
			return x * y;
		break;

		case 4:
			return x / y;
		break;
	}
}