How many elements does the array int x[20]; contain?

Q How many elements does the array int x[20]; contain?

Question ID

#24493

Subchapter

Array in C++

Action

Choose one option below

Choose Your Answer

Click an option to check whether your answer is correct.

A 19 ✔ ✖

B 21 ✔ ✖

C 20 ✔ ✖

D 0 ✔ ✖

Correct Answer: C

The declaration:

int x[20];

creates an array that can store 20 elements.

The number inside the brackets [20] specifies the total number of elements
Array indexing starts from 0
Valid indices range from 0 to 19

So even though the last index is 19, the array still contains 20 elements.

Correct Answer: C) 20

Description:
x[20] means the array size is 20, not 19.

Q How many elements does the array int x[20]; contain?