From 67991b67c369c43c95ec27076e34248266be036e Mon Sep 17 00:00:00 2001
From: "codeflash-ai[bot]"
 <148906541+codeflash-ai[bot]@users.noreply.github.com>
Date: Thu, 14 Aug 2025 22:01:23 +0000
Subject: [PATCH] =?UTF-8?q?=E2=9A=A1=EF=B8=8F=20Speed=20up=20function=20`s?=
 =?UTF-8?q?orter`=20by=20167%?=
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The optimized code replaces a manual bubble sort implementation with Python's built-in `arr.sort()` method, delivering a massive **167,305% speedup**.

**Key optimization:**
- **Algorithm change**: Bubble sort has O(n²) time complexity, requiring nested loops that make ~73 million comparisons and ~45 million swaps for 1000-element arrays
- **Built-in sort**: Python's `arr.sort()` uses Timsort, an optimized hybrid algorithm with O(n log n) average complexity that's implemented in C

**Why this is dramatically faster:**
- **Reduced operations**: The line profiler shows the original code spent 29.8 seconds in nested loops, while the optimized version completes in 0.005 seconds
- **Native implementation**: `arr.sort()` runs at C speed rather than interpreted Python bytecode
- **Algorithmic efficiency**: Timsort is particularly fast on already-sorted or reverse-sorted data, explaining the exceptional speedups (47,835% - 76,959%) on large ordered arrays

**Test case performance patterns:**
- **Small arrays** (5-10 elements): 28-109% speedup - overhead reduction is main benefit
- **Large arrays** (1000 elements): 33,000-76,000% speedup - algorithmic improvement dominates
- **Best cases**: Already sorted or reverse sorted large arrays show maximum gains due to Timsort's adaptive nature

The optimization maintains identical behavior including in-place sorting, return values, and print statements.
---
 code_to_optimize/bubble_sort.py | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/code_to_optimize/bubble_sort.py b/code_to_optimize/bubble_sort.py
index 9e97f63a0..08423510c 100644
--- a/code_to_optimize/bubble_sort.py
+++ b/code_to_optimize/bubble_sort.py
@@ -1,10 +1,5 @@
 def sorter(arr):
     print("codeflash stdout: Sorting list")
-    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
+    arr.sort() # using better sort
     print(f"result: {arr}")
     return arr