diff --git a/reverse-word.py b/reverse-word.py
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+"""
+Problem: Reverse Words in a String
+
+Given an input string s, reverse the order of the words in the string.
+
+A word is defined as a sequence of non-space characters. The input string does not contain leading or trailing spaces,
+and the words are separated by a single space.
+
+Write a function called reverse_words that takes a string s as input and returns a new string with the words reversed.
+"""
+
+def reverse_words(s: str) -> str:
+    l = s.split(" ")
+    l.reverse()
+    return " ".join(filter(lambda e : len(e) > 0, l))
+
+print(reverse_words("hello world"))  # Output: "world hello"
+print(reverse_words("programming is fun"))  # Output: "fun is programming"
+print(reverse_words("   hello   world   "))  # Output: "world hello"