Break vs continue execution difference in Python - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to stop the loop when the number 3 is found.

Python

for num in range(5):
    if num == 3:
        [1]
    print(num)

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

Abreak

Bcontinue

Cpass

Dexit

Attempts:

3 left

💡 Hint

Common Mistakes

Using continue instead of break, which skips the rest of the loop but does not stop it.

The break statement stops the loop immediately when the condition is met.

2fill in blank

medium

Complete the code to skip printing the number 3 but continue the loop.

Python

for num in range(5):
    if num == 3:
        [1]
    print(num)

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

Acontinue

Bbreak

Cpass

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using break which stops the loop entirely instead of skipping one iteration.

The continue statement skips the current loop iteration and moves to the next one.

3fill in blank

hard

Fix the error in the code to correctly skip even numbers and print only odd numbers.

Python

for num in range(1, 6):
    if num % 2 == 0:
        [1]
    print(num)

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

Apass

Bskip

Ccontinue

Dbreak

Attempts:

3 left

💡 Hint

Common Mistakes

Using break stops the loop too early, printing fewer numbers.

Using continue skips even numbers and prints only odd numbers.

4fill in blank

hard

Fill both blanks to create a dictionary of squares for numbers less than 5, skipping number 3.

Python

squares = {x: x[1]2 for x in range(1, 7) if x [2] 5 and x != 3}

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, or > instead of < for filtering.

Use ** for power and < to filter numbers less than 5.

5fill in blank

hard

Fill all three blanks to create a dictionary of uppercase keys and values greater than 2.

Python

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

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

Ak.upper()

Bv

C>

Dk.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using k.lower() instead of k.upper(), or using < instead of > for filtering.

Use k.upper() for uppercase keys, v for values, and > to filter values greater than 2.

Practice

1. What does the break statement do inside a loop in Python?

easy

A. Stops the entire loop immediately

B. Skips the current iteration and continues with the next

C. Ends the current function

D. Restarts the loop from the beginning

Solution

1. Step 1: Understand the role of break

   The break statement is used to exit a loop completely when a condition is met.

2. Step 2: Compare with other options

   Unlike continue, which skips one iteration, break stops the loop entirely.

3. Final Answer:

   Stops the entire loop immediately -> Option A

4. Quick Check:

   break = stop loop [OK]

Hint: Break stops loop; continue skips iteration [OK]

Common Mistakes:

• Confusing break with continue
• Thinking break skips only one iteration
• Assuming break restarts the loop

2. Which of the following is the correct syntax to skip the current iteration in a loop?

easy

A. skip

B. break

C. continue

D. stop

Solution

1. Step 1: Identify the keyword to skip iteration

   The keyword continue is used to skip the current iteration and move to the next one.

2. Step 2: Check other options for correctness

   break stops the loop, while skip and stop are not valid Python keywords.

3. Final Answer:

   continue -> Option C

4. Quick Check:

   continue skips iteration [OK]

Hint: Use continue to skip iteration, break to stop loop [OK]

Common Mistakes:

• Using break instead of continue
• Using non-existent keywords like skip
• Confusing syntax for loop control

3. What is the output of the following code?

for i in range(5):
    if i == 3:
        break
    print(i)

medium

A. 0 1 2 3

B. 0 1 2 3 4

C. 3 4

D. 0 1 2

Solution

1. Step 1: Analyze the loop and break condition

   The loop runs from 0 to 4. When i == 3, the break stops the loop immediately.

2. Step 2: Determine printed values before break

   Values 0, 1, and 2 are printed. When i reaches 3, loop stops before printing 3.

3. Final Answer:

   0 1 2 -> Option D

4. Quick Check:

   break stops loop at 3, prints before it [OK]

Hint: Break stops loop before printing current value [OK]

Common Mistakes:

• Including the break value in output
• Confusing break with continue
• Assuming loop runs fully

4. Find the error in this code snippet:

for i in range(4):
    if i == 2:
        continue
    print(i)
    break

medium

A. The break is inside the loop and will stop after first iteration

B. continue is used incorrectly and causes syntax error

C. The loop will never run because of break before print

D. No error, code runs and prints 0, 1, 3

Solution

1. Step 1: Understand loop flow with continue and break

   When i == 2, continue skips print and break for that iteration. For other values, print runs then break stops loop immediately.

2. Step 2: Identify effect of break placement

   Break inside the loop after print causes loop to stop after first printed value, so only one value prints.

3. Final Answer:

   The break is inside the loop and will stop after first iteration -> Option A

4. Quick Check:

   Break stops loop early due to placement [OK]

Hint: Break after print stops loop early, continue skips iteration [OK]

Common Mistakes:

• Thinking continue causes syntax error
• Assuming loop prints all values
• Ignoring break effect inside loop

5. You want to print all numbers from 0 to 9 except 5, but stop printing if the number reaches 8. Which code snippet correctly uses break and continue?

hard

A. for i in range(10):
if i == 5:
break
if i == 8:
continue
print(i)

B. for i in range(10):
if i == 5:
continue
if i == 8:
break
print(i)

C. for i in range(10):
if i == 8:
continue
if i == 5:
break
print(i)

D. for i in range(10):
if i == 5:
continue
if i == 8:
continue
print(i)

Solution

1. Step 1: Understand requirements for skipping and stopping

   We skip printing 5 (use continue) and stop printing at 8 (use break).

2. Step 2: Check each option for correct order and logic

   for i in range(10): if i == 5: continue if i == 8: break print(i) correctly continues at 5 to skip it, breaks at 8 to stop loop, and prints others.

3. Final Answer:

   Option B code snippet -> Option B

4. Quick Check:

   continue skips 5, break stops at 8 [OK]

Hint: Continue skips unwanted, break stops loop early [OK]

Common Mistakes:

• Swapping break and continue conditions
• Using break to skip instead of continue
• Not stopping loop at 8