Finish advanced section about functions

Day_2/Tasks_day_2.jl

@@ -0,0 +1,65 @@
+### A Pluto.jl notebook ###
+# v0.18.4
+
+using Markdown
+using InteractiveUtils
+
+# ╔═╡ ce10609f-94ee-4b39-95b8-a2573c60b0e7
+md"""
+# Useful functions
+These are useful functions that might help you doing the tasks.
+
+## `string(N)`
+Converts a number `N` to a string.
+
+Example:
+
+	string(42) == "42"
+
+## `parse(TYPE, S)`
+Parses a type `TYPE` out of string `S`.
+
+Example:
+
+	parse(Int64, "-55") == -55
+"""
+
+# ╔═╡ 148125d2-aed5-11ec-2e5b-715891a04c69
+md"""
+# Universal pop
+Define a function named `universal_pop` that takes a variable `var` and returns a version of it where the last "element" in this variable is removed.
+
+`var` itself should NOT be modified!
+
+The function `universal_pop` should be able to deal with (and only with) the following types of `var`:
+- `AbstractVector`: `var=[1, 2, 3]` should return `[1, 2]`
+- `AbstractString`: `var="Hello world!"` should return `"Hello world"`
+- `Integer`: `var=51237` should return `5123`
+- One more type of your choice if you think that this type would make sense with this function.
+"""
+
+# ╔═╡ 1dcfef68-48c3-4e54-9ac7-d0eba40621c8
+# Your code starts here
+
+
+# ╔═╡ 00000000-0000-0000-0000-000000000001
+PLUTO_PROJECT_TOML_CONTENTS = """
+[deps]
+"""
+
+# ╔═╡ 00000000-0000-0000-0000-000000000002
+PLUTO_MANIFEST_TOML_CONTENTS = """
+# This file is machine-generated - editing it directly is not advised
+
+julia_version = "1.7.2"
+manifest_format = "2.0"
+
+[deps]
+"""
+
+# ╔═╡ Cell order:
+# ╠═ce10609f-94ee-4b39-95b8-a2573c60b0e7
+# ╟─148125d2-aed5-11ec-2e5b-715891a04c69
+# ╠═1dcfef68-48c3-4e54-9ac7-d0eba40621c8
+# ╟─00000000-0000-0000-0000-000000000001
+# ╟─00000000-0000-0000-0000-000000000002