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Remove duplicate implementation of median of two arrays algorithm (#11420)

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* Remove duplicate implementation of median of two arrays algorithm

Remove maths/median_of_two_arrays.py because the repo has two
implementations of this algorithm, with
data_structures/arrays/median_two_array.py being the other. Even though
maths/median_of_two_arrays.py is the older implementation, the newer
implementation is better documented, has better error handling, and is
already located in a more appropriate directory.

* updating DIRECTORY.md

---------

Co-authored-by: tianyizheng02 <tianyizheng02@users.noreply.github.com>
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Tianyi Zheng 2024-06-01 02:17:07 -07:00 committed by GitHub
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1
DIRECTORY.md
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@ -661,7 +661,6 @@
* [Manhattan Distance](maths/manhattan_distance.py)
* [Matrix Exponentiation](maths/matrix_exponentiation.py)
* [Max Sum Sliding Window](maths/max_sum_sliding_window.py)
* [Median Of Two Arrays](maths/median_of_two_arrays.py)
* [Minkowski Distance](maths/minkowski_distance.py)
* [Mobius Function](maths/mobius_function.py)
* [Modular Division](maths/modular_division.py)

33
maths/median_of_two_arrays.py
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@ -1,33 +0,0 @@
from __future__ import annotations
def median_of_two_arrays(nums1: list[float], nums2: list[float]) -> float:
"""
>>> median_of_two_arrays([1, 2], [3])
2
>>> median_of_two_arrays([0, -1.1], [2.5, 1])
0.5
>>> median_of_two_arrays([], [2.5, 1])
1.75
>>> median_of_two_arrays([], [0])
0
>>> median_of_two_arrays([], [])
Traceback (most recent call last):
...
IndexError: list index out of range
"""
all_numbers = sorted(nums1 + nums2)
div, mod = divmod(len(all_numbers), 2)
if mod == 1:
return all_numbers[div]
else:
return (all_numbers[div] + all_numbers[div - 1]) / 2
if __name__ == "__main__":
import doctest
doctest.testmod()
array_1 = [float(x) for x in input("Enter the elements of first array: ").split()]
array_2 = [float(x) for x in input("Enter the elements of second array: ").split()]
print(f"The median of two arrays is: {median_of_two_arrays(array_1, array_2)}")