27. 구조체 배열과 화살표 연산자

1#include <stdio.h>
2 
3struct Item {
4    char name[8];
5    int price;
6    int qty;
7};
8 
9int main() {
10    struct Item list[3] = {
11        {"pen", 500, 4},
12        {"cup", 1200, 2},
13        {"bag", 3000, 1}
14    };
15    struct Item *p = list;
16    int total = 0;
17    for (int i = 0; i < 3; i++) {
18        total += (p + i)->price * (p + i)->qty;
19    }
20    p++;
21    p->qty += 3;
22    (*p).price -= 200;
23    printf("%d\n", total);
24    printf("%s %d\n", p->name, p->price * p->qty);
25    printf("%c %d\n", (p + 1)->name[0], list[1].qty);
26    return 0;
27}