Update dynamic_programming/word_break.py

Co-authored-by: Christian Clauss <cclauss@me.com>

Author: alexpantyukhin

dynamic_programming/word_break.py

@@ -58,8 +58,8 @@ def word_break(string: str, words: list[str]) -> bool:
     if not isinstance(string, str) or len(string) == 0:
         raise ValueError("the string should be not empty string")
 
-    if not isinstance(word_dict, list) or not all(
-        isinstance(item, str) and len(item) > 0 for item in word_dict
+    if not isinstance(words, list) or not all(
+        isinstance(item, str) and len(item) > 0 for item in words
     ):
         raise ValueError("the word_dict should a list of non empty string")