⚡️ Speed up function encode_str by 40% in PR #224 (remove-tiktoken)

Certainly! Let's optimize the function.

- The major cost here is calculating `int(0.75 * len(s))`.  
    - Multiplying floating-point numbers and casting to int is a minor but measurable cost in a tight loop.
    - Instead, use integer multiplication and floor division to avoid float arithmetic. (i.e., `len(s) * 3 // 4`)
- Slicing cost is minimal and can't be improved.
- No need to further optimize or use extra imports as slicing is already a C-level operation.

**Optimized Code:**


This approach completely eliminates the float multiplication and the int cast, making it faster, especially when called many times. The semantics are unchanged for all practical string lengths.

Author: codeflash-ai[bot]

codeflash/code_utils/code_utils.py

@@ -10,8 +10,11 @@
 
 from codeflash.cli_cmds.console import logger
 
+
 def encode_str(s: str) -> str:
-    return s[:int(0.75 * len(s))]
+    # Use integer math for the index calculation to avoid float operations
+    return s[: len(s) * 3 // 4]
+
 
 def get_qualified_name(module_name: str, full_qualified_name: str) -> str:
     if not full_qualified_name: