Bug tracking and fixing in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the value of variable count.

Intro to Computing

count = 5
print([1])

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

ACount

Bcout

Ccount

Dcnt

Attempts:

3 left

💡 Hint

Common Mistakes

Using a misspelled variable name causes a NameError.

Ignoring case sensitivity leads to errors.

The variable count holds the value 5. To print it, use print(count). The other options are misspelled or undefined variables.

2fill in blank

medium

Complete the code to fix the syntax error in the if statement.

Intro to Computing

number = 10
if number [1] 5:
    print("Greater than 5")

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

A=

B==

C<

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using single equals = instead of comparison operators.

Confusing equality == with greater than >.

The if statement needs a comparison operator. > checks if number is greater than 5. Using = causes a syntax error because it is an assignment, not a comparison.

3fill in blank

hard

Fix the error in the loop to correctly print numbers from 0 to 4.

Intro to Computing

for i in range([1]):
    print(i)

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

A4

B5

C6

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using 4 in range excludes the number 4 from output.

Confusing inclusive and exclusive ranges.

The range(5) generates numbers 0 to 4. Using 4 would generate 0 to 3, missing 4. Using 5 is correct to include 4.

4fill in blank

hard

Fill both blanks to create a dictionary of squares for numbers greater than 2.

Intro to Computing

squares = {x: x[1]2 for x in range(1, 6) if x [2] 2}

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

A**

B>

C<

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using * instead of ** for squaring.

Using < instead of > in the condition.

The expression x**2 calculates the square of x. The condition x > 2 filters numbers greater than 2. Other options either calculate incorrectly or filter wrong numbers.

5fill in blank

hard

Fill all three blanks to create a dictionary with uppercase keys and values greater than 0.

Intro to Computing

result = [1]: [2] for k, v in data.items() if v [3] 0}

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

Ak.upper()

Bv

C>

Dk

Attempts:

3 left

💡 Hint

Common Mistakes

Using k instead of k.upper() for keys.

Using < or == instead of > in condition.

k.upper() converts keys to uppercase. v is the value. The condition v > 0 filters values greater than zero. This creates a dictionary with uppercase keys and positive values.