// assign amt depending on the value of option 
#include <stdio.h>

int main(void)
{
	int option = 2, amt = 0;

	// switch implementation
	switch (option) {
		case 1: 	amt = 100; 	break;
		case 2: 	amt = 50; 	break;
		case 3: 	amt = 20; 	break;
		case 4: 	amt = 10; 	break;
		default: 	printf("Error: unknown option\n");
	}
	printf("switch amt = %d\n", amt);

	amt = 0;
	// assign amt depending on the value of option 
	if (option == 1) 		amt = 100;
	else if (option == 2) 	amt = 50;
	else if (option == 3) 	amt = 20;
	else if (option == 4) 	amt = 10;
	else printf("Error: unknown option\n");
	printf("if amt = %d\n", amt);
}