From 389429ff161141e4b641761533db7272ee71dca0 Mon Sep 17 00:00:00 2001 From: natgho Date: Wed, 2 Oct 2019 20:06:04 +0300 Subject: [PATCH] wrong definition updated, code developed correctly according to definition --- snippets/filter_non_unique.md | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/snippets/filter_non_unique.md b/snippets/filter_non_unique.md index b9dd96923..71f83d003 100644 --- a/snippets/filter_non_unique.md +++ b/snippets/filter_non_unique.md @@ -5,13 +5,14 @@ tags: list,beginner Filters out the non-unique values in a list. -Use list comprehension and `list.count()` to create a list containing only the unique values. +Use list comprehension and `list.count()` to create a list containing only the non-unique values. ```py def filter_non_unique(lst): - return [item for item in lst if lst.count(item) == 1] + return [x for x in set(item for item in lst if lst.count(item) > 1)] ``` ```py -filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [1, 3, 5] +filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [2, 4] ``` +