Day 6 of My 30-Day Coding Challenge on HackerRank

Day 6 was all about loops and repetition—one of the most fundamental concepts in programming.

Today’s challenge focused on generating the multiplication table of a given number using a loop.

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Problem Overview

Today’s challenge focused on:

• Understanding loops

• Repeating tasks efficiently

• Performing multiplication operations

• Formatting output properly

We were given an integer n and asked to print its first 10 multiples in the format:

n x i = result

Where i ranges from 1 to 10.

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My Solution

n = int(input())

for i in range(1, 11):
    print(f"{n} x {i} = {n*i}")

What I Did Today

I learned how to:

• Use a for loop for repeated execution

• Generate multiplication tables dynamically

• Format strings neatly using f-strings

• Combine logic with loops

Here’s the logic I followed:

1. Read integer n
2. Start loop from 1 to 10
3. Multiply n with current loop value
4. Print in required format
5. Repeat until 10

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What I Learned

Today’s key takeaways:

• Loops help automate repetitive tasks

• for loops are useful when the number of iterations is known

• Output formatting improves readability

• Multiplication tables are a great beginner example of loops

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Challenges Faced

• Understanding loop range values

• Making sure output format matches exactly

• Avoiding spacing mistakes in print statements

Why This Problem Matters

This problem helps in understanding:

• Iteration in programming

• Mathematical automation using loops

• Pattern-based output generation

Loops are used everywhere—from simple tasks to complex algorithms.

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🧪 Sample Run

Input:

2

Output:

2 x 1 = 2
2 x 2 = 4
2 x 3 = 6
2 x 4 = 8
2 x 5 = 10
2 x 6 = 12
2 x 7 = 14
2 x 8 = 16
2 x 9 = 18
2 x 10 = 20

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Plan for Day 7

• Improve problem-solving speed

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💬 Final Thoughts

Day 6 was a simple but important reminder that loops are incredibly powerful.

Instead of writing the same code again and again, loops help us solve problems efficiently and cleanly.

Let’s keep the momentum going