Itaf8F - Online C Compiler & Debugging Tool

#include <stdio.h>
int main() {
	int a,b,c,d,e;
	scanf("%d %d %d", &a,&b,&c);


		switch(c)
		{
			case 1:
				d=a+b;
				printf("%d＋%d＝%d",a,b,d);
				break;
			case 2:
				d=a-b;
				printf("%dー%d＝%d",a,b,d);
				break;
			case 3:
				d=a*b;
				printf("%d×%d＝%d",a,b,d);
				break;
			case 4:
				d=a/b;
				e=a%b;
				if(e==0)
					printf("%d÷%d＝%d",a,b,d);
				else
					printf("%d÷%d＝%d余り%d",a,b,d,e);
				break;

		}
		return 0;
}