Array Declaration and Initialization in DSA C - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare an integer array named 'numbers' of size 5.

DSA C

int numbers[[1]];

Drag options to blanks, or click blank then click option'

A10

B5

C0

Dsize

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 as size which is invalid.

Using a variable name instead of a number without declaration.

The code declares an integer array 'numbers' with 5 elements.

2fill in blank

medium

Complete the code to initialize the array 'scores' with values 10, 20, 30.

DSA C

int scores[] = { [1] };

Drag options to blanks, or click blank then click option'

A10, 20, 30

B10 20 30

C"10, 20, 30"

D10; 20; 30

Attempts:

3 left

💡 Hint

Common Mistakes

Using spaces instead of commas between values.

Putting values inside quotes making it a string.

The array is initialized with three integer values separated by commas inside curly braces.

3fill in blank

hard

Fix the error in the array declaration to create an array 'data' of size 4.

DSA C

int data[[1]];

Drag options to blanks, or click blank then click option'

Afour

B0

C4

D-4

Attempts:

3 left

💡 Hint

Common Mistakes

Using a word instead of a number.

Using negative or zero size.

Array size must be a positive integer literal or constant. '4' is correct.

4fill in blank

hard

Fill both blanks to declare and initialize an array 'ages' with 3 elements: 18, 21, 25.

DSA C

int ages[[1]] = { [2] };

Drag options to blanks, or click blank then click option'

A3

B18, 21, 25

C18 21 25

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Mismatch between size and number of values.

Using spaces instead of commas between values.

The array 'ages' has size 3 and is initialized with three values separated by commas.

5fill in blank

hard

Fill all three blanks to declare an array 'temps' of size 4 and initialize with 15, 20, 25, 30.

DSA C

int temps[[1]] = { [2] , [3] };

Drag options to blanks, or click blank then click option'

A4

B15, 20

C25, 30

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong size for the array.

Not separating all values with commas.

The array 'temps' has size 4 and is initialized with four values split into two parts separated by a comma.