Python Learning Series · @onlysamarrr · Day 11 / 30

Day 11: while Loop, break, continue

Q: What is the common mistake on Day 11?

Forgetting to update the loop variable inside a while loop creates an infinite loop: the program never finishes.

Q: Where is Day 11 used in real life?

Retry logic, menus and guessing games use while loops with break and continue.

Day 11 teaches the while loop, break and continue. A while loop runs while its condition is True, break stops the loop immediately, and continue skips the current round and moves to the next one.

Phase: Beginner · Reels: 51/450 – 55/450

Quick Answer

Day 11 teaches the while loop, break and continue. A while loop runs while its condition is True, break stops the loop immediately, and continue skips the current round and moves to the next one.

What You Will Learn

while count < 3 keeps looping until count reaches 3.
count += 1 changes the counter each round. Without it the loop would never stop.
continue skips the current round, for example skipping even numbers.
break exits the loop completely as soon as it is reached.
Use for when the count is known; use while when you loop until a condition changes.

Code

count = 0
while count < 3:
    print("count:", count)
    count += 1
for n in range(1, 10):
    if n % 2 == 0:
        continue
    if n > 5:
        break
    print(n, end=" ")
print()

Output

count: 0
count: 1
count: 2
1 3 5

Code Explained, Line by Line

while count < 3 keeps looping until count reaches 3.
count += 1 changes the counter each round. Without it the loop would never stop.
continue skips the current round, for example skipping even numbers.
break exits the loop completely as soon as it is reached.
Use for when the count is known; use while when you loop until a condition changes.

Common Mistake: Forgetting to update the loop variable inside a while loop creates an infinite loop: the program never finishes.

Real-Life Use

Retry logic, menus and guessing games use while loops with break and continue.

Practice Task: Write the guessing game logic: if the guess is bigger print 'Too high', if smaller print 'Too low', if equal print 'Correct!' and break.

Test Yourself — MCQs

Select (tick) an option, then tap Check answer to see instantly whether your answer is right or wrong, with an explanation. You can change your answer and check again.

Q1. What does break do inside a loop?

A. Skips one round B. Stops the loop completely C. Restarts the loop D. Nothing

Q2. What does continue do?

A. Stops the loop B. Skips the current round and continues C. Pauses the program D. Repeats the last value

Q3. What causes an infinite while loop?

A. A large range B. Not updating the loop variable C. Using break D. Using print

Today's 5 Reels (from the 90-Day Plan Excel)

51/450	Concept	while loop basics
52/450	Live demo	break aur continue demo
53/450	Common mistake	Infinite loop galti
54/450	Quiz	Quiz: number guessing
55/450	Interview / real life	Interview: for vs while

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