From 538f37dd678d09c337d226b6d4d22bfbd29662c8 Mon Sep 17 00:00:00 2001
From: Hykilpikonna <me@hydev.org>
Date: Mon, 13 Sep 2021 12:14:43 -0400
Subject: [PATCH] [+] Practice1

---
 practice/practice1.py | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 practice/practice1.py

diff --git a/practice/practice1.py b/practice/practice1.py
new file mode 100644
index 0000000..e80efeb
--- /dev/null
+++ b/practice/practice1.py
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+"""CSC110 Extra MarkUs Practice Questions - Week 1
+
+Instructions (READ THIS FIRST!)
+===============================
+
+Complete the functions in this module according to their docstring.
+
+We have marked each place you need to write code with the word "TODO".
+As you complete your work in this file, delete each TO-DO comment---this is a
+good habit to get into early! To check your work, you should run this file in
+the Python console and then call each function manually.
+
+Copyright and Usage Information
+===============================
+
+This file is provided solely for the personal and private use of students
+taking CSC110 at the University of Toronto St. George campus. All forms of
+distribution of this code, whether as given or with any changes, are
+expressly prohibited. For more information on copyright for CSC110 materials,
+please consult our Course Syllabus.
+"""
+
+
+def negate(numbers: set[float]) -> dict[float, float]:
+    """Return a dictionary mapping each number in numbers to its negation.
+
+    >>> negate({-3.50, 1.10, 11.1})
+    {-3.50: 3.50, 1.10: -1.10, 11.1: -11.1}
+    """
+    return {number: -number for number in numbers}
+
+
+if __name__ == '__main__':
+    # Test code
+    assert negate({-3.50, 1.10, 11.1}) == {-3.50: 3.50, 1.10: -1.10, 11.1: -11.1}