Program to draw the calculator using the switch statements in c language.

 #include <stdio.h>

int main()
{

    
 long long int f1 , f2  , f3 , n1 , n2 , f4 ;
 
    int choice;


	
	printf("-----------------Simple Calculator----------------------------------\n");
	printf(" press 1 for Addition\n");
	printf(" press 2 for Subtraction\n");
	printf(" press 3 for Multiplication \n");
	printf(" press 4 Division\n");
	
	printf("Enter the choice: ");
	scanf("%d" , &choice);
	
	printf("Enter two number: ");
	scanf("%lld %lld" , &n1 , &n2);
	

	switch (choice){
	
	case 1 :
	
	   f1 = n1 + n2 ;
		printf("The sum of two number is = %lld\n" , f1);
		
	break;
	
	case 2 :
	 f2 = n1 - n2 ;
		printf("The Subtraction of two number is = %lld\n" , f2);
		
	break;

      case 3 : 

	  f3 = n1 * n2 ;
		printf("The Multiplication of two number is = %lld\n" , f3);
		
	break;
	
	case 4 :
	         
			
			f4 = n1 / n2 ;
	
		printf("The Division of two number is = %lld\n" , f4);
	        
		
	break;
	

	}
	


	
}