確認問題(構造体)

確認問題1 ― 構造体の基本

struct Point { int x; int y; };
struct Point p = {3, 7};
printf("(%d, %d)\n", p.x, p.y);

確認問題2 ― 構造体の代入

struct Point a = {1, 2};
struct Point b;
b = a;
b.x = 10;
printf("a.x=%d, b.x=%d\n", a.x, b.x);

確認問題3 ― アロー演算子

struct Point p = {5, 8};
struct Point *ptr = &p;
printf("%d\n", ptr->y);

確認問題4 ― 構造体配列

struct Student { char name[20]; int score; };
struct Student s[3] = {
    {"Taro", 80}, {"Hanako", 95}, {"Jiro", 70}
};
int max = 0;
for (int i = 0; i < 3; i++) {
    if (s[i].score > s[max].score) max = i;
}
printf("%s\n", s[max].name);

結果