diff --git a/seed/challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-algorithm-questions.json b/seed/challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-algorithm-questions.json
index 6d3bc463e23..01d7732f6f4 100644
--- a/seed/challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-algorithm-questions.json
+++ b/seed/challenges/08-coding-interview-questions-and-take-home-assignments/coding-interview-algorithm-questions.json
@@ -98,7 +98,7 @@
"id": "a3f503de51cf954ede28891d",
"title": "Symmetric Difference",
"description": [
- "Create a function that takes two or more arrays and returns an array of the symmetric difference (△
or ⊕
) of the provided arrays.",
+ "Create a function that takes two or more arrays and returns an array of the iterative symmetric difference (△
or ⊕
) of the provided arrays. In other words, start with the first array and keep on taking symmetric differences of each the following arrays after it.",
"Given two sets (for example set A = {1, 2, 3}
and set B = {2, 3, 4}
), the mathematical term \"symmetric difference\" of two sets is the set of elements which are in either of the two sets, but not in both (A △ B = C = {1, 4}
). For every additional symmetric difference you take (say on a set D = {2, 3}
), you should get the set with elements which are in either of the two the sets but not both (C △ D = {1, 4} △ {2, 3} = {1, 2, 3, 4}
). The resulting array must contain only unique values (no duplicates).",
"Remember to use Read-Search-Ask if you get stuck. Try to pair program. Write your own code."
],