Program to display arithmetic operator using switch case.

			#include<stdio.h>
			#include<conio.h>
			void main()
			{
			int a,b,n,s,m,su,d;
			clrscr();
			printf("enter two no’s : ");
			scanf("%d%d",&a,&b);
			printf("enter 1 for sum\n2 for multiply\n3for subtraction\n4 for division: ");
			scanf("%d",&n);
			switch(n)
			{
			case 1:
			s=a+b;
			printf("sum=%d",s);
			break;
			case 2:
			m=a*b;
			printf("multiply=%d",m);
			break;
			case 3:
			su=a-b;
			printf("subtraction=%d",su);
			break;
			case 4:
			d=a/b;
			printf("divission=%d",d);
			break;
			default:
			printf("wrong input");
			break;
			}
			getch();
			}
Output:
enter two no's: 8
4
enter 1 for sum
2 for multiply
3 for subtraction
4 for division: 1
sum=12