Fix sorts/bucket_sort.py implementation (#5786)

* Fix sorts/bucket_sort.py

* updating DIRECTORY.md

* Remove unused var in bucket_sort.py

* Fix list index in bucket_sort.py

---------

Co-authored-by: Tianyi Zheng <[email protected]>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Author: 3 people

Diff for: DIRECTORY.md

@@ -710,6 +710,7 @@
   * [2 Hidden Layers Neural Network](neural_network/2_hidden_layers_neural_network.py)
   * Activation Functions
     * [Exponential Linear Unit](neural_network/activation_functions/exponential_linear_unit.py)
+    * [Leaky Rectified Linear Unit](neural_network/activation_functions/leaky_rectified_linear_unit.py)
   * [Back Propagation Neural Network](neural_network/back_propagation_neural_network.py)
   * [Convolution Neural Network](neural_network/convolution_neural_network.py)
   * [Perceptron](neural_network/perceptron.py)

Diff for: sorts/bucket_sort.py

@@ -30,7 +30,7 @@
 from __future__ import annotations
 
 
-def bucket_sort(my_list: list) -> list:
+def bucket_sort(my_list: list, bucket_count: int = 10) -> list:
     """
     >>> data = [-1, 2, -5, 0]
     >>> bucket_sort(data) == sorted(data)
@@ -43,21 +43,27 @@ def bucket_sort(my_list: list) -> list:
     True
     >>> bucket_sort([]) == sorted([])
     True
+    >>> data = [-1e10, 1e10]
+    >>> bucket_sort(data) == sorted(data)
+    True
     >>> import random
     >>> collection = random.sample(range(-50, 50), 50)
     >>> bucket_sort(collection) == sorted(collection)
     True
     """
-    if len(my_list) == 0:
+
+    if len(my_list) == 0 or bucket_count <= 0:
         return []
+
     min_value, max_value = min(my_list), max(my_list)
-    bucket_count = int(max_value - min_value) + 1
+    bucket_size = (max_value - min_value) / bucket_count
     buckets: list[list] = [[] for _ in range(bucket_count)]
 
-    for i in my_list:
-        buckets[int(i - min_value)].append(i)
+    for val in my_list:
+        index = min(int((val - min_value) / bucket_size), bucket_count - 1)
+        buckets[index].append(val)
 
-    return [v for bucket in buckets for v in sorted(bucket)]
+    return [val for bucket in buckets for val in sorted(bucket)]
 
 
 if __name__ == "__main__":