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📄 30,125% (301.25x) speedup for sorter in cli/code_to_optimize/bubble_sort.py

⏱️ Runtime : 9.03 seconds 29.9 milliseconds (best of 32 runs)

📝 Explanation and details

The given code is implementing the bubble sort algorithm, which is not optimal for sorting. We can significantly increase the speed of this function by switching to a more efficient sorting algorithm like Timsort, which is the default sorting algorithm used in Python. Here's the optimized version.

This utilizes Python's built-in sort method, which is highly efficient with a time complexity of O(n log n).

Correctness verification report:

Test Status
⚙️ Existing Unit Tests 39 Passed
🌀 Generated Regression Tests 38 Passed
⏪ Replay Tests 🔘 None Found
🔎 Concolic Coverage Tests 🔘 None Found
📊 Tests Coverage undefined
⚙️ Existing Unit Tests Details
- test_bubble_sort.py
- test_bubble_sort__perfinstrumented.py
- test_bubble_sort_conditional.py
- test_bubble_sort_conditional__perfinstrumented.py
- test_bubble_sort_import.py
- test_bubble_sort_import__perfinstrumented.py
- test_bubble_sort_in_class.py
- test_bubble_sort_in_class__perfinstrumented.py
- test_bubble_sort_parametrized.py
- test_bubble_sort_parametrized__perfinstrumented.py
- test_bubble_sort_parametrized_loop.py
- test_bubble_sort_parametrized_loop__perfinstrumented.py
- test_sorter__unit_test_0.py
- test_sorter__unit_test_1.py
🌀 Generated Regression Tests Details
import pytest  # used for our unit tests
from code_to_optimize.bubble_sort import sorter

# unit tests

def test_already_sorted_list():
    # Test with a list that is already sorted
    codeflash_output = sorter([1, 2, 3, 4, 5])
    codeflash_output = sorter([10, 20, 30])

def test_reverse_sorted_list():
    # Test with a list that is sorted in reverse order
    codeflash_output = sorter([5, 4, 3, 2, 1])
    codeflash_output = sorter([30, 20, 10])

def test_unsorted_list():
    # Test with a list that is unsorted
    codeflash_output = sorter([3, 1, 4, 5, 2])
    codeflash_output = sorter([10, 5, 20, 15])

def test_single_element_list():
    # Test with a list containing a single element
    codeflash_output = sorter([1])
    codeflash_output = sorter([42])

def test_empty_list():
    # Test with an empty list
    codeflash_output = sorter([])

def test_list_with_duplicates():
    # Test with a list containing duplicate elements
    codeflash_output = sorter([2, 3, 2, 1, 3])
    codeflash_output = sorter([5, 5, 5, 5])

def test_list_with_negative_numbers():
    # Test with a list containing negative numbers
    codeflash_output = sorter([-1, -3, -2, 0, 2])
    codeflash_output = sorter([-5, -10, 0, 5, 10])

def test_list_with_mixed_numbers():
    # Test with a list containing both positive and negative numbers
    codeflash_output = sorter([-10, 5, -20, 15, 0])
    codeflash_output = sorter([3, -1, 4, -5, 2])

def test_list_with_floats():
    # Test with a list containing floating point numbers
    codeflash_output = sorter([2.5, 3.1, 1.8, 2.9])
    codeflash_output = sorter([1.1, 1.01, 1.001])

def test_list_with_strings():
    # Test with a list containing strings
    codeflash_output = sorter(["apple", "banana", "cherry"])
    codeflash_output = sorter(["dog", "cat", "bird"])

def test_large_list():
    # Test with a large list to assess performance
    large_list = list(range(1000, 0, -1))
    sorted_large_list = list(range(1, 1001))
    codeflash_output = sorter(large_list)

def test_non_comparable_elements():
    # Test with a list containing non-comparable elements
    with pytest.raises(TypeError):
        sorter([1, "two", 3])
    with pytest.raises(TypeError):
        sorter([None, 1, 2])

def test_stability():
    # Test with a list to check stability (order of equal elements)
    codeflash_output = sorter([1, 2, 2, 3, 3, 1])
    codeflash_output = sorter([5, 3, 3, 5, 1, 1])
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.
import pytest  # used for our unit tests
from code_to_optimize.bubble_sort import sorter

# unit tests

# Test basic functionality with sorted list
def test_sorted_list():
    codeflash_output = sorter([1, 2, 3, 4, 5])
    codeflash_output = sorter(['a', 'b', 'c'])

# Test basic functionality with reverse sorted list
def test_reverse_sorted_list():
    codeflash_output = sorter([5, 4, 3, 2, 1])
    codeflash_output = sorter(['z', 'y', 'x'])

# Test basic functionality with unsorted list
def test_unsorted_list():
    codeflash_output = sorter([3, 1, 4, 2, 5])
    codeflash_output = sorter(['b', 'a', 'd', 'c'])

# Test edge case with empty list
def test_empty_list():
    codeflash_output = sorter([])

# Test edge case with single element list
def test_single_element_list():
    codeflash_output = sorter([1])
    codeflash_output = sorter(['a'])

# Test edge case with repeated elements
def test_repeated_elements():
    codeflash_output = sorter([2, 3, 2, 1, 1])
    codeflash_output = sorter(['a', 'b', 'a', 'c', 'b'])

# Test edge case with negative numbers
def test_negative_numbers():
    codeflash_output = sorter([-1, -3, -2, 0, 2])

# Test edge case with mixed positive and negative numbers
def test_mixed_numbers():
    codeflash_output = sorter([3, -1, 2, -3, 0])

# Test special case with all identical elements
def test_identical_elements():
    codeflash_output = sorter([5, 5, 5, 5])

# Test special case with large numbers
def test_large_numbers():
    codeflash_output = sorter([1000000, 500000, 1000001])

# Test performance with large list
def test_large_list():
    large_list = list(range(1000, 0, -1))
    sorted_list = list(range(1, 1001))
    codeflash_output = sorter(large_list)

# Test robustness with non-comparable elements
def test_non_comparable_elements():
    with pytest.raises(TypeError):
        sorter([1, 'a', 3])

# Test edge case with floats
def test_floats():
    codeflash_output = sorter([3.1, 2.2, 5.5, 4.4])

# Test edge case with mixed integers and floats
def test_mixed_integers_floats():
    codeflash_output = sorter([1, 2.2, 3, 0.5])
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

To edit these changes git checkout codeflash/optimize-sorter-mbh29gu6 and push.

Codeflash

The given code is implementing the bubble sort algorithm, which is not optimal for sorting. We can significantly increase the speed of this function by switching to a more efficient sorting algorithm like Timsort, which is the default sorting algorithm used in Python. Here's the optimized version.

 

This utilizes Python's built-in `sort` method, which is highly efficient with a time complexity of O(n log n).
@codeflash-ai-dev codeflash-ai-dev bot added the ⚡️ codeflash Optimization PR opened by CodeFlash AI label Jun 3, 2025
@codeflash-ai-dev codeflash-ai-dev bot requested a review from HeshamHM28 June 3, 2025 21:59
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
@codeflash-ai-dev
Copy link
Author

⚡️ Codeflash found optimizations for this PR

📄 4211531.56 (42115.32) speedup for sorter in code_to_optimize/bubble_sort.py

⏱️ Runtime : 1070554.63 25.42 (best of undefined runs)

I created a new dependent PR with the suggested changes. Please review:

If you approve, it will be merged into this PR (branch codeflash/optimize-sorter-mbh29gu6).

codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai-dev bot added a commit that referenced this pull request Jun 3, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
codeflash-ai bot added a commit that referenced this pull request Jun 9, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
Copy link

codeflash-ai bot commented Jun 9, 2025

⚡️ Codeflash found optimizations for this PR

📄 4211531.56 (42115.32) speedup for sorter in code_to_optimize/bubble_sort.py

⏱️ Runtime : 1070554.63 25.42 (best of undefined runs)

I created a new dependent PR with the suggested changes. Please review:

If you approve, it will be merged into this PR (branch codeflash/optimize-sorter-mbh29gu6).

codeflash-ai bot added a commit that referenced this pull request Jun 9, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
Copy link

codeflash-ai bot commented Jun 9, 2025

⚡️ Codeflash found optimizations for this PR

📄 4211531.56 (42115.32) speedup for sorter in code_to_optimize/bubble_sort.py

⏱️ Runtime : 1070554.63 25.42 (best of undefined runs)

I created a new dependent PR with the suggested changes. Please review:

If you approve, it will be merged into this PR (branch codeflash/optimize-sorter-mbh29gu6).

Copy link

codeflash-ai bot commented Jun 16, 2025

⚡️Codeflash found 4211531.56 (42115.32) speedup for sorter in code_to_optimize/bubble_sort.py

⏱️ Runtime : 1070554.63 25.42 (best of undefined runs)

📝 Explanation and details

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

def sorter(arr):
    return sorted(arr)

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:

Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).

Correctness verification report:

Test Status
⚙️ Existing Unit Tests 39 Passed
🌀 Generated Regression Tests 38 Passed
⏪ Replay Tests 🔘 None Found
🔎 Concolic Coverage Tests 🔘 None Found
📊 Tests Coverage undefined
⚙️ Existing Unit Tests Details
- test_bubble_sort.py
- test_bubble_sort__perfinstrumented.py
- test_bubble_sort_conditional.py
- test_bubble_sort_conditional__perfinstrumented.py
- test_bubble_sort_import.py
- test_bubble_sort_import__perfinstrumented.py
- test_bubble_sort_in_class.py
- test_bubble_sort_in_class__perfinstrumented.py
- test_bubble_sort_parametrized.py
- test_bubble_sort_parametrized__perfinstrumented.py
- test_bubble_sort_parametrized_loop.py
- test_bubble_sort_parametrized_loop__perfinstrumented.py
- test_sorter__unit_test_0.py
- test_sorter__unit_test_1.py
🌀 Generated Regression Tests Details
# imports
import pytest  # used for our unit tests

# function to test

def sorter(arr):
    for i in range(len(arr)):
        for j in range(len(arr) - 1):
            if arr[j] > arr[j + 1]:
                temp = arr[j]
                arr[j] = arr[j + 1]
                arr[j + 1] = temp
    return arr

# unit tests

# Test with an empty list
def test_sorter_empty():
    assert sorter([]) == []

# Test with a single-element list
def test_sorter_single_element():
    assert sorter([42]) == [42]

# Test with a two-element list
def test_sorter_two_elements():
    assert sorter([2, 1]) == [1, 2]
    assert sorter([1, 2]) == [1, 2]

# Test with sorted lists
def test_sorter_sorted_list():
    assert sorter([1, 2, 3, 4, 5]) == [1, 2, 3, 4, 5]
    assert sorter([0, 2, 4, 6, 8, 10]) == [0, 2, 4, 6, 8, 10]

# Test with reverse-sorted lists
def test_sorter_reverse_sorted_list():
    assert sorter([5, 4, 3, 2, 1]) == [1, 2, 3, 4, 5]
    assert sorter([-1, -2, -3, -4, -5]) == [-5, -4, -3, -2, -1]

# Test with lists with duplicates
def test_sorter_with_duplicates():
    assert sorter([3, 1, 2, 1, 3]) == [1, 1, 2, 3, 3]
    assert sorter([5, 5, 5, 5]) == [5, 5, 5, 5]

# Test with lists with negative numbers
def test_sorter_with_negative_numbers():
    assert sorter([-1, -3, -2, 0, 2]) == [-3, -2, -1, 0, 2]
    assert sorter([-10, 100, -50, 0]) == [-50, -10, 0, 100]

# Test with lists with varying types of numbers
def test_sorter_with_various_number_types():
    assert sorter([1.5, 2.3, 1.1, 2.0, 1.9]) == [1.1, 1.5, 1.9, 2.0, 2.3]
    assert sorter([1, 2.0, 3, 4.5]) == [1, 2.0, 3, 4.5]

# Test with large lists
def test_sorter_large_list():
    large_list = list(range(1000, 0, -1))  # 1000 to 1 in reverse order
    assert sorter(large_list) == sorted(large_list)

# Test with lists with non-numeric values
def test_sorter_non_numeric():
    with pytest.raises(TypeError):  # We expect a TypeError because sorter is not designed for non-numeric values
        sorter(['apple', 'banana', 'cherry'])

    with pytest.raises(TypeError):  # We expect a TypeError because sorter is not designed for non-numeric values
        sorter(['a', 'aa', 'aaa'])

To test or edit this optimization locally git merge codeflash/optimize-pr295-2025-06-16T17.03.17

codeflash-ai bot added a commit that referenced this pull request Jun 16, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
Copy link

codeflash-ai bot commented Jun 16, 2025

⚡️Codeflash found 4211531.56 (42115.32) speedup for sorter in code_to_optimize/bubble_sort.py

⏱️ Runtime : 1070554.63 25.42 (best of undefined runs)

📝 Explanation and details

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

def sorter(arr):
    return sorted(arr)

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:

Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).

Correctness verification report:

Test Status
⚙️ Existing Unit Tests 39 Passed
🌀 Generated Regression Tests 38 Passed
⏪ Replay Tests 🔘 None Found
🔎 Concolic Coverage Tests 🔘 None Found
📊 Tests Coverage undefined
⚙️ Existing Unit Tests Details
- test_bubble_sort.py
- test_bubble_sort__perfinstrumented.py
- test_bubble_sort_conditional.py
- test_bubble_sort_conditional__perfinstrumented.py
- test_bubble_sort_import.py
- test_bubble_sort_import__perfinstrumented.py
- test_bubble_sort_in_class.py
- test_bubble_sort_in_class__perfinstrumented.py
- test_bubble_sort_parametrized.py
- test_bubble_sort_parametrized__perfinstrumented.py
- test_bubble_sort_parametrized_loop.py
- test_bubble_sort_parametrized_loop__perfinstrumented.py
- test_sorter__unit_test_0.py
- test_sorter__unit_test_1.py
🌀 Generated Regression Tests Details
# imports
import pytest  # used for our unit tests

# function to test

def sorter(arr):
    for i in range(len(arr)):
        for j in range(len(arr) - 1):
            if arr[j] > arr[j + 1]:
                temp = arr[j]
                arr[j] = arr[j + 1]
                arr[j + 1] = temp
    return arr

# unit tests

# Test with an empty list
def test_sorter_empty():
    assert sorter([]) == []

# Test with a single-element list
def test_sorter_single_element():
    assert sorter([42]) == [42]

# Test with a two-element list
def test_sorter_two_elements():
    assert sorter([2, 1]) == [1, 2]
    assert sorter([1, 2]) == [1, 2]

# Test with sorted lists
def test_sorter_sorted_list():
    assert sorter([1, 2, 3, 4, 5]) == [1, 2, 3, 4, 5]
    assert sorter([0, 2, 4, 6, 8, 10]) == [0, 2, 4, 6, 8, 10]

# Test with reverse-sorted lists
def test_sorter_reverse_sorted_list():
    assert sorter([5, 4, 3, 2, 1]) == [1, 2, 3, 4, 5]
    assert sorter([-1, -2, -3, -4, -5]) == [-5, -4, -3, -2, -1]

# Test with lists with duplicates
def test_sorter_with_duplicates():
    assert sorter([3, 1, 2, 1, 3]) == [1, 1, 2, 3, 3]
    assert sorter([5, 5, 5, 5]) == [5, 5, 5, 5]

# Test with lists with negative numbers
def test_sorter_with_negative_numbers():
    assert sorter([-1, -3, -2, 0, 2]) == [-3, -2, -1, 0, 2]
    assert sorter([-10, 100, -50, 0]) == [-50, -10, 0, 100]

# Test with lists with varying types of numbers
def test_sorter_with_various_number_types():
    assert sorter([1.5, 2.3, 1.1, 2.0, 1.9]) == [1.1, 1.5, 1.9, 2.0, 2.3]
    assert sorter([1, 2.0, 3, 4.5]) == [1, 2.0, 3, 4.5]

# Test with large lists
def test_sorter_large_list():
    large_list = list(range(1000, 0, -1))  # 1000 to 1 in reverse order
    assert sorter(large_list) == sorted(large_list)

# Test with lists with non-numeric values
def test_sorter_non_numeric():
    with pytest.raises(TypeError):  # We expect a TypeError because sorter is not designed for non-numeric values
        sorter(['apple', 'banana', 'cherry'])

    with pytest.raises(TypeError):  # We expect a TypeError because sorter is not designed for non-numeric values
        sorter(['a', 'aa', 'aaa'])

To test or edit this optimization locally git merge codeflash/optimize-pr295-2025-06-16T17.04.12

codeflash-ai bot added a commit that referenced this pull request Jun 16, 2025
…timize-sorter-mbh29gu6`)

The function you provided, sorter, is already using Python's built-in sort function which has a time complexity of O(n log n), where n is a number of elements in the array. This is the fastest achievable sorting complexity for comparison-based sorts.

However, if you want to achieve a marginal speed increase, writing this in-place might help.

Here's an alternative version using list comprehension. Although this does not improve the time complexity, it gives a Pythonic touch:

```python
def sorter(arr):
    return sorted(arr)
```

Again, this command returns a new sorted list and does not modify the original list. If you want to sort the list in-place, you only have the original function:



Please note that sorting time complexity cannot be improved further than O(n log n) using comparison-based sorting algorithms. To really optimize this function, you would need a guarantee about the content of your data, for example, if your array only contained integers in a particular range, then you could use counting sort or radix sort, which can have a time complexity of O(n).
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