Static vs dynamic arrays in Data Structures Theory - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to describe static arrays.

Data Structures Theory

A static array has a fixed size that is set at [1] and cannot be changed later.

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Aruntime

Buser input

Ccompile time

Ddeletion

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing static arrays with dynamic arrays that can change size at runtime.

Static arrays have their size fixed at compile time, meaning the size is determined before the program runs and cannot be changed during execution.

2fill in blank

medium

Complete the sentence to describe dynamic arrays.

Data Structures Theory

Dynamic arrays can change their size during [1] to accommodate more or fewer elements.

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Aruntime

Bdebugging

Cinstallation

Dcompilation

Attempts:

3 left

💡 Hint

Common Mistakes

Thinking dynamic arrays have fixed size like static arrays.

Dynamic arrays can resize during runtime, which means while the program is running, they can grow or shrink as needed.

3fill in blank

hard

Fix the error in the statement about static arrays.

Data Structures Theory

Static arrays can [1] their size after creation.

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Aincrease

Bdecrease

Cchange

Dnot change

Attempts:

3 left

💡 Hint

Common Mistakes

Assuming static arrays can grow or shrink like dynamic arrays.

Static arrays cannot change their size after creation; their size is fixed.

4fill in blank

hard

Fill both blanks to complete the sentence about dynamic arrays.

Data Structures Theory

Dynamic arrays usually [1] their size by [2] the current capacity when more space is needed.

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Adouble

Badding

Cmultiplying

Dreducing

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'adding' instead of 'multiplying' for resizing strategy.

Dynamic arrays often double their size by multiplying the current capacity to efficiently allocate more space.

5fill in blank

hard

Fill all three blanks to complete the dictionary comprehension about array types.

Data Structures Theory

array_info = [1]: [2] for [3] in ['static', 'dynamic']

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Aarr

B'fixed size' if arr == 'static' else 'resizable'

Carr.upper()

Attempts:

3 left

💡 Hint

Common Mistakes

Using the variable name as key without converting to uppercase.

Mixing up the conditional expression for values.

This comprehension creates a dictionary where keys are the uppercase array type names and values describe if they are fixed size or resizable.