tugas file.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>


void showMenu(){
    printf("Yogurt Shop\n");
    printf("------------\n");
    printf("1. Buy Yogurt\n");
    printf("2. View History\n");
    printf("3. Delete History\n");
    printf("4. Exit\n\n");
}

int countPrice(char name[50], char topping[50], int size) {
	// Price = size x pjg karakter nama yogurt x pjg karakter topping x 10
	int price = (unsigned)strlen(name) * (unsigned)strlen(topping) * size * 10;
	return price;
}

void detailPuchase(char name[50], char topping[50], int size){
	int total = countPrice(name, topping, size);
	printf("\n\n");
	printf("Detail Purchase\n");
	printf("Name 		: %s\n", name);
	printf("Topping 	: %s\n", topping);
	printf("Size 		: %i\n", size);
	printf("Total		: %i\n", total);

	// char historyFormat = 2
	// putc(, fp)

	FILE * fp;
	fp = fopen("yogurt.txt","w");
	fprintf(fp, "%s \t | %s \t | %i \t | %i \t | \n", name, topping, size, total );
}

int main(){
    int menuChoice;

    while(1) {
    	showMenu();

	    printf("Input Your choice 1-4: "); scanf("%i", &menuChoice);

	    if(menuChoice == 1) {
	        char yogurtName[50], yogurtTopping[50], confirm[1];
	        int yogurtSize;

	        printf("Input your yogurt [chocolate/vanilla/strawberry]: "); scanf("%s", yogurtName);
	        printf("Input your topping [kitkat/jelly/kiwi/mango]: "); scanf("%s", yogurtTopping);
	        printf("Input your size[100-500]: "); scanf("%i", &yogurtSize);
	        printf("are you sure? y/n : "); scanf("%s", confirm);

	        if(confirm == 'y'){
	        	detailPuchase(yogurtName, yogurtTopping, yogurtSize);
	        }
	        printf("\n\n");
	        continue;
   		}

   		if(menuChoice == 2) {

   		}

   		if(menuChoice == 3) {

   		}

   		if(menuChoice == 4) {

   		}

   		if(menuChoice == 5) {

   		}

    }

    return 0;
}