Cse 122 Final Exam Solution Official

This article is not just a set of answers—it is a for the exam itself. We will break down the most common question archetypes, provide step-by-step solution strategies, and reveal how to reverse-engineer the grader’s rubric.

Write a recursive method expand(String s) that returns a new string where each character is repeated by its position in the string (1-indexed). Example: expand("abc") → "abbccc" . Cse 122 Final Exam Solution

A) 125