Update app.py

app.py

@@ -50,7 +50,7 @@ button = st.button("Find Similar Questions on Leetcode")
 if text_input:
   query = text_input
   answer = get_similar_links(query, db, embedding_vector)
-  for link in answer:
+  for link in set(answer):
       st.write(link)
   st.balloons()