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Add Sleep Sort algorithm to advanced Python sorting algorithms (#13203) #13415

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Add Sleep Sort algorithm to advanced Python sorting algorithms (#13203) #13415

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0bcdd37
Add Sleep Sort algorithm with definition and Python implementation
Aviraj2929 Oct 10, 2025
2c462b1
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Oct 10, 2025
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40 changes: 40 additions & 0 deletions sorts/sleep_sort.py
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import threading
import time


def sleep_sort(arr):
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As there is no test file in this pull request nor any test function or class in the file sorts/sleep_sort.py, please provide doctest for the function sleep_sort

Please provide return type hint for the function: sleep_sort. If the function does not return a value, please provide the type hint as: def function() -> None:

Please provide type hint for the parameter: arr

"""
Sorts a list of positive integers using Sleep Sort.

Args:
arr (list[int]): List of positive integers to sort.

Returns:
list[int]: Sorted list in ascending order.
"""
result = []

def sleeper(x):
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As there is no test file in this pull request nor any test function or class in the file sorts/sleep_sort.py, please provide doctest for the function sleeper

Please provide return type hint for the function: sleeper. If the function does not return a value, please provide the type hint as: def function() -> None:

Please provide descriptive name for the parameter: x

Please provide type hint for the parameter: x

# Sleep for a duration proportional to the number
time.sleep(x * 0.01) # scale down to avoid long delays
result.append(x)

threads = [threading.Thread(target=sleeper, args=(num,)) for num in arr]

# Start all threads
for t in threads:
t.start()

# Wait for all threads to finish
for t in threads:
t.join()

return result


# Example Usage
if __name__ == "__main__":
numbers = [4, 1, 3, 2]
sorted_numbers = sleep_sort(numbers)
print("Original:", numbers)
print("Sorted:", sorted_numbers)