2025 Jan OPPE 1 - Set 3

Section 1 · Question 1

Even & Second Last Digit is Two

Check if a number is even and its second last digit is 2. Covers modulo arithmetic and boolean logic.

Solved

Section 1 · Question 2

Capitalize nth Character

Uppercase a specific index in a string. Covers string immutability and slicing to rebuild a string.

Solved

Section 1 · Question 3

Merge and Remove Duplicates

Merge two lists and return unique elements. Covers set operations and the union pattern.

Solved

Section 2 · Question 1

Replace Vowels with Next Alphabet

Replace every vowel with the next letter in the alphabet. Covers ord(), chr(), and string building with join().

Solved

Section 2 · Question 2

Max Column Sum and Index

Find the column with the largest sum in an m×n matrix. Full I/O problem covering 2D lists and zip(*matrix).

Solved

Section 3 · Question 1

Analyze Sentences

A multi-task dispatcher - count words, find palindromes, detect repeated characters, and return the longest words.

Solved

Section 3 · Question 2

Centered Triangle of Zeroes

Print a centred triangle of space-separated zeroes. Full I/O pattern printing problem.

Solved

📁 All slides for this set (GitHub)