2025 Jan OPPE 1 - Set 1

Section 1 · Question 1

Even or Divisible by 5

Check if a number satisfies either of two conditions. Covers modulo arithmetic and the or operator.

Solved

Section 1 · Question 2

Deinterleave Even and Odd Indices

Rearrange a string by placing even-index characters before odd-index ones. Covers step slicing s[::2].

Solved

Section 1 · Question 3

Make Dictionary from Elements in Index

Build a single key-value pair dict from two lists at a given index. Covers dict literals and negative indexing.

Solved

Section 2 · Question 1

Count Unique Even and Odd Numbers

Count unique even and odd numbers in a list. Covers set() deduplication and counting patterns.

Solved

Section 2 · Question 2

Vowel Count of Words

Append vowel count to each word in a sentence. Full I/O problem covering string splitting, counting and joining.

Solved

Section 3 · Question 1

Student Score Filter

Filter students by four criteria - excellent, good, all_pass, balanced. Covers all(), averages, and set comprehensions.

Solved

Section 3 · Question 2

W Pattern

Print a W-shaped pattern with |, / and \. Full I/O pattern printing problem.

Solved

📁 All slides for this set (GitHub)