From 389429ff161141e4b641761533db7272ee71dca0 Mon Sep 17 00:00:00 2001 From: natgho Date: Wed, 2 Oct 2019 20:06:04 +0300 Subject: [PATCH 1/6] 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] ``` + From 3c5c69741a64f72fa6cbce0a4912dd9604b019df Mon Sep 17 00:00:00 2001 From: natgho Date: Wed, 2 Oct 2019 20:06:24 +0300 Subject: [PATCH 2/6] filter unique definition added --- snippets/filter_unique.md | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 snippets/filter_unique.md diff --git a/snippets/filter_unique.md b/snippets/filter_unique.md new file mode 100644 index 000000000..b4dd40e12 --- /dev/null +++ b/snippets/filter_unique.md @@ -0,0 +1,18 @@ +--- +title: filter_unique +tags: list,beginner + +--- + +Filters out the unique values in a list. + +Use list comprehension and `list.count()` to create a list containing only the unique values. + +```py +def filter_unique(lst): + return [item for item in lst if lst.count(item) == 1] +``` + +```py +filter_unique([1, 2, 2, 3, 4, 4, 5]) # [1, 3, 5] +``` \ No newline at end of file From f2d5d2ca9fb8d9ade796559faca142c30aeb53b1 Mon Sep 17 00:00:00 2001 From: natgho Date: Wed, 2 Oct 2019 20:20:39 +0300 Subject: [PATCH 3/6] remove whitespace --- snippets/filter_unique.md | 1 - 1 file changed, 1 deletion(-) diff --git a/snippets/filter_unique.md b/snippets/filter_unique.md index b4dd40e12..95b97fbc8 100644 --- a/snippets/filter_unique.md +++ b/snippets/filter_unique.md @@ -1,7 +1,6 @@ --- title: filter_unique tags: list,beginner - --- Filters out the unique values in a list. From ed4d9f4f4f8daca5a0d49e92077ad1a92bdde349 Mon Sep 17 00:00:00 2001 From: Angelos Chalaris Date: Tue, 8 Oct 2019 09:38:15 +0300 Subject: [PATCH 4/6] Update filter_non_unique.md --- snippets/filter_non_unique.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/snippets/filter_non_unique.md b/snippets/filter_non_unique.md index 71f83d003..3ab733c3e 100644 --- a/snippets/filter_non_unique.md +++ b/snippets/filter_non_unique.md @@ -5,14 +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 non-unique values. +Use list comprehension and `list.count()` to create a list containing only the unique values. ```py def filter_non_unique(lst): - return [x for x in set(item for item in lst if lst.count(item) > 1)] + return [item for item in lst if lst.count(item) == 1] ``` ```py -filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [2, 4] +filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [1, 3, 5] ``` From 67b4032021838917841e1d186a0209272de9264a Mon Sep 17 00:00:00 2001 From: Angelos Chalaris Date: Tue, 8 Oct 2019 09:38:29 +0300 Subject: [PATCH 5/6] Update filter_non_unique.md --- snippets/filter_non_unique.md | 1 - 1 file changed, 1 deletion(-) diff --git a/snippets/filter_non_unique.md b/snippets/filter_non_unique.md index 3ab733c3e..b9dd96923 100644 --- a/snippets/filter_non_unique.md +++ b/snippets/filter_non_unique.md @@ -15,4 +15,3 @@ def filter_non_unique(lst): ```py filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [1, 3, 5] ``` - From 87c072e44476b51230aae6e2827767f59f2ee5ab Mon Sep 17 00:00:00 2001 From: Angelos Chalaris Date: Tue, 8 Oct 2019 09:39:12 +0300 Subject: [PATCH 6/6] Update filter_unique.md --- snippets/filter_unique.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/snippets/filter_unique.md b/snippets/filter_unique.md index 95b97fbc8..92184cf0b 100644 --- a/snippets/filter_unique.md +++ b/snippets/filter_unique.md @@ -5,13 +5,13 @@ tags: list,beginner Filters out the 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_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_unique([1, 2, 2, 3, 4, 4, 5]) # [1, 3, 5] -``` \ No newline at end of file +filter_unique([1, 2, 2, 3, 4, 4, 5]) # [2, 4] +```