From 61d7cdecdf27e9885744b6badf32636e4b3e18b4 Mon Sep 17 00:00:00 2001 From: vafan Date: Tue, 29 Sep 2026 10:58:03 +0000 Subject: [PATCH] 2 --- u2/list_ops.py | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/u2/list_ops.py b/u2/list_ops.py index b351eab..252486a 100644 --- a/u2/list_ops.py +++ b/u2/list_ops.py @@ -4,4 +4,14 @@ def append(list1, list2): result = result + [item] for item in list2 : result = result + [item] - return result \ No newline at end of file + return result +def concat(lists): + result = [] + for item in lists + result = append(result, item) + return result +def filter(function, list): + res = [] + if function(item) : + res = res + item + return res