🐍 Python Pattern Challenge — Day 22

Pattern printing is a great way to improve your Python loops, conditions, repetition, and logical thinking. For Day 22, let's try something different by combining numbers and stars in the same pattern.

🎯 Today's Challenge

Write a Python program to print:

The pattern alternates between numbers and *, making it simple but different from the usual star-only patterns.

Best and cleanest code will be rewarded! 🏆

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Solution 1 — Using Nested Loops

for i in range(1, 7):
    for j in range(1, i + 1):
        if j % 2 == 1:
            print((j + 1) // 2, end=" ")
        else:
            print("*", end=" ")
    print()

How it works

The outer loop controls the number of rows:

for i in range(1, 7):

The inner loop controls how many elements are printed in each row:

for j in range(1, i + 1):

Then we check whether the position is odd or even:

if j % 2 == 1:

Odd positions contain numbers:

1 2 3

Even positions contain stars:

* * *

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Solution 2 — Using a Simple List

items = [1, "*", 2, "*", 3, "*"]

for i in range(1, len(items) + 1):
    print(*items[:i])

Output

1
1 *
1 * 2
1 * 2 *
1 * 2 * 3
1 * 2 * 3 *

This is a very clean approach because every row simply takes one more element from the list.

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Solution 3 — Using a Function

def pattern(n):

    for i in range(1, n + 1):
        for j in range(1, i + 1):
            print(
                (j + 1) // 2 if j % 2 else "*",
                end=" "
            )
        print()


pattern(6)

Using a function makes the pattern reusable.

Try:

pattern(10)

to generate more rows.

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⚡ Short & Clean Code

a = [1, "*", 2, "*", 3, "*"]

for i in range(1, 7):
    print(*a[:i])

🔥 Just a few lines are enough to create the complete pattern.

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🚀 Challenge Yourself

Can you modify this pattern:

• Continue it up to 5 or 10 numbers?
• Replace * with #?
• Create the same pattern using a while loop?
• Reverse the pattern?
• Take the number of rows using input()?
• Create your own pattern by mixing numbers, letters, and symbols?

Drop your solution below! 👇

22 Days. 22 Patterns. Stronger Python Logic. 🐍🔥

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