Arrays and Pointers

Question 1

Define an array

Answer 1

A series of elements of only one data type

Question 2

What the range of values of array indices, for an array of length n?

Answer 2

0 to n-1

Question 3

What happens if you do not initialize an array at all?

Answer 3

The compiler stores each element of the array with a random garbage value

Question 4

What happens if you partially initialize an array?

Answer 4

The remaining elements of the array store zero as their value

Question 5

what are the values of each element in an array scores declared as follows:
arr[] = {[7] = 12};
(or is there a compilation error?)

Answer 5

arr[0] = 0,
arr[1] = 0,
arr[2] = 0,
arr[3] = 0,
arr[4] = 0,
arr[5] = 0,
arr[6] = 0,
arr[7] = 12,
arr[8+] = garbage values

Question 6

what are the values of each element in an array scores declared as follows:
arr[11] = {[7] = 12};
(or is there a compilation error?)

Answer 6

arr[0] = 0,
arr[1] = 0,
arr[2] = 0,
arr[3] = 0,
arr[4] = 0,
arr[5] = 0,
arr[6] = 0,
arr[7] = 12,
arr[8] = 0,
arr[9] = 0,
arr[10] = 0,
arr[11+] = garbage values

Question 7

what are the values of each element in an array scores declared as follows:
arr[11] = {[7] = 12, [11] = 5};
(or is there a compilation error?)

Answer 7

Compilation error