Array of structures

Which of the following declares an array of structures of size 5, where each structure holds two integers (x and y)?

• struct point arr[5];

• struct point arr[] = {x: 1, y: 2};

• struct point {int x; int y;} arr[5];

• struct point arr = {1, 2};

What is the correct way to access the second element’s x field of an array of structures called points?

• points.x[1];

• points[0].x;

• points[1].x;

• points.x[2];

Given a pointer p to an array of structures, which statement accesses the third element's y field?

• (*p[2]).y;

• p[2].y;

• (*p).y[2];

• p->y[2];

Which of the following code snippets correctly traverses an array of structures points of size 5 and prints all the x values?

• for (int i = 0; i arr[0] = 10;

• struct data {int arr[5];} *d; d.arr[0] = 10;

Given the following code: struct point { int x; int y; }; struct point points[3] = {{1,2}, {3,4}, {5,6}}; What is the correct way to access the y value of the second point using a pointer to the array?

• points[1]->y;

• points->y;

• points[2].y;

• points[1].y;

What is the correct way to define a structure named 'circle' that contains a float for the radius and a point structure for the center?

• struct circle {struct point center; float radius;};

• struct circle {float radius; struct point center;};

• struct circle {float radius; int center[2];};

• struct circle {int center[2]; float radius;};

Given an array of structures 'shapes' of size 4, how can you access the y value of the first shape?

• shapes[0].y;

• shapes[1].y;

• shapes.y[0];

• shapes[0]->y;

Which of the following correctly initializes an array of structures 'rectangles' with two elements, each having width and height?

• struct rectangle {int width; int height;} rectangles[2] = {{10, 20}, {30, 40}};

• struct rectangle rectangles = {10, 20};

• struct rectangle rectangles[2] = {10, 20, 30, 40};

• struct rectangle rectangles[2] = {{10, 20}, {30}};

Which of the following statements correctly defines a structure named 'student' that contains a character array for the name and an integer for the age?

• struct student {char name; int age[50];};

• struct student {int age; char name;};

• struct student name[50]; int age;

• struct student {char name[50]; int age;};

How can you declare an array of structures 'cars' with 3 elements, where each structure contains a string for the model and an integer for the year?

• struct car cars = {"Honda", 2019};

• struct car {char model; int year;} cars[3];

• struct car cars[3] = {"Toyota", 2020};

• struct car {char model[20]; int year;} cars[3];