#include <stdio.h> int main(void) { int a, b, op; printf("Enter first number: "); scanf("%d", &a); printf("Enter second number: "); scanf("%d", &b); printf("Enter 0 to add, 1 to multiply: "); scanf("%d", &op); if(op == 0) printf("%d", a + b ); else printf("%d", a * b ); return 0; }