Update product_sum.py

jainav-exe · web-flow · commit d3ab4a8303d9 · 2026-05-12T01:46:43.000+05:30
diff --git a/data_structures/arrays/product_sum.py b/data_structures/arrays/product_sum.py
@@ -25,7 +25,7 @@ def product_sum(arr: list[int | list], depth: int) -> int:
     Recursively calculates the product sum of an array.
 
     The product sum of an array is defined as the sum of its elements multiplied by
-    their respective depths.  If an element is a list, its product sum is calculated
+    their respective depths. If an element is a list, its product sum is calculated
     recursively by multiplying the sum of its elements with its depth plus one.
 
     Args:
