From fe7f9748c67f2345cc11be15e68e60a965512fab Mon Sep 17 00:00:00 2001
From: Diogenis15 <148352448+Diogenis15@users.noreply.github.com>
Date: Fri, 30 Jan 2026 22:01:04 +0200
Subject: [PATCH 1/4] Add implementation for Trimorphic Number

An algorithm that checks if a number is trimorphic, which is a number whose cube ends with the same digits as the number itself
---
 trimorphic_number.py | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 trimorphic_number.py

diff --git a/trimorphic_number.py b/trimorphic_number.py
new file mode 100644
index 000000000000..c667b6ab67b5
--- /dev/null
+++ b/trimorphic_number.py
@@ -0,0 +1,26 @@
+"""
+A Trimorphic Number is a number whose cube ends in the same digits as the number itself.
+For example, 4^3 = 64, which ends in 4.
+
+Reference: https://en.wikipedia.org/wiki/Automorphic_number#Trimorphic_numbers
+"""
+
+
+def is_trimorphic(number: int) -> bool:
+    """
+    Checks if a number is a Trimorphic number.
+    """
+    if number < 0:
+        raise ValueError("Input must be a non-negative integer")
+
+    if number == 0:
+        return True
+
+    cube = number**3
+    return str(cube).endswith(str(number))
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()

From 13378ddba3949fbd5fc907e1244e5d57fde36e05 Mon Sep 17 00:00:00 2001
From: Diogenis15 <148352448+Diogenis15@users.noreply.github.com>
Date: Fri, 30 Jan 2026 22:29:45 +0200
Subject: [PATCH 2/4] Add doctests for is_trimorphic function

Added doctests for the is_trimorphic function to validate its behavior with various inputs, including edge cases.
---
 trimorphic_number.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/trimorphic_number.py b/trimorphic_number.py
index c667b6ab67b5..a3e71aef5cc3 100644
--- a/trimorphic_number.py
+++ b/trimorphic_number.py
@@ -9,6 +9,29 @@
 def is_trimorphic(number: int) -> bool:
     """
     Checks if a number is a Trimorphic number.
+
+    >>> is_trimorphic(0)
+    True
+    >>> is_trimorphic(1)
+    True
+    >>> is_trimorphic(4)
+    True
+    >>> is_trimorphic(5)
+    True
+    >>> is_trimorphic(24)
+    True
+    >>> is_trimorphic(249)
+    True
+    >>> is_trimorphic(2)
+    False
+    >>> is_trimorphic(7)
+    False
+    >>> is_trimorphic(10)
+    False
+    >>> is_trimorphic(-1)
+    Traceback (most recent call last):
+        ...
+    ValueError: Input must be a non-negative integer
     """
     if number < 0:
         raise ValueError("Input must be a non-negative integer")

From 4b371c9c216a2380022474c34add2afbd1047a27 Mon Sep 17 00:00:00 2001
From: Diogenis15 <148352448+Diogenis15@users.noreply.github.com>
Date: Fri, 30 Jan 2026 22:36:00 +0200
Subject: [PATCH 3/4] Enhance docstring for is_trimorphic function

Added parameter and return type documentation to is_trimorphic function.
---
 trimorphic_number.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/trimorphic_number.py b/trimorphic_number.py
index a3e71aef5cc3..08a21c99be4e 100644
--- a/trimorphic_number.py
+++ b/trimorphic_number.py
@@ -10,6 +10,10 @@ def is_trimorphic(number: int) -> bool:
     """
     Checks if a number is a Trimorphic number.
 
+    :param number: The number to check
+    :return: True if the number is trimorphic, False otherwise
+    :raises ValueError: If the input number is negative
+
     >>> is_trimorphic(0)
     True
     >>> is_trimorphic(1)

From 9a094cdcc2313629c0bcb6e65f9978515dbff9f7 Mon Sep 17 00:00:00 2001
From: Diogenis15 <148352448+Diogenis15@users.noreply.github.com>
Date: Fri, 30 Jan 2026 22:49:31 +0200
Subject: [PATCH 4/4] Rename trimorphic_number.py to
 maths/special_numbers/trimorphic_number.py

---
 .../special_numbers/trimorphic_number.py                          | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename trimorphic_number.py => maths/special_numbers/trimorphic_number.py (100%)

diff --git a/trimorphic_number.py b/maths/special_numbers/trimorphic_number.py
similarity index 100%
rename from trimorphic_number.py
rename to maths/special_numbers/trimorphic_number.py