Word Replacement

Write a function $replace(ws, x, y)$ that given a list of words $ws$ , and two words $x$ and $y$ , replaces all occurrences of $x$ in $ws$ with $y$ . The function must return two lists: The original list ws and the modified list with the replaced elements (if any).

Problem information

Author: ProAl1 professors

Generation: 2026-01-25T16:48:47.096Z