From c469b67f0b50144abe45f8533f9ab127f1eb6a02 Mon Sep 17 00:00:00 2001 From: Isabelle Viktoria Maciohsek Date: Mon, 2 Nov 2020 19:15:44 +0200 Subject: [PATCH] Add roll snippet Resolves #413 --- snippets/roll.md | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 snippets/roll.md diff --git a/snippets/roll.md b/snippets/roll.md new file mode 100644 index 000000000..fbfe3c643 --- /dev/null +++ b/snippets/roll.md @@ -0,0 +1,18 @@ +--- +title: roll +tags: list,beginner +--- + +Moves the specified amount of elements to the start of the list. + +- Use slice notation to get the two slices of the list and combine them before returning. + +```py +def roll(lst, offset): + return lst[-offset:] + lst[:-offset] +``` + +```py +roll([1, 2, 3, 4, 5], 2) # [4, 5, 1, 2, 3] +roll([1, 2, 3, 4, 5], -2) # [3, 4, 5, 1, 2] +```