GoalScope — longest_palindromic_substring (Qwen2.5-Coder-32B-Instruct) — hover a token to see the patched verbalization
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<code>↵
def longest_palindromic_substring(s):↵
"""Expand around center approach"""↵
if not s:↵
return ""↵
start, end = 0, 0↵
for i in range(len(s)):↵
len1 = expand_around_center(s, i, i)↵
len2 = expand_around_center(s, i, i + 1)↵
max_len = max(len1, len2)↵
if max_len > end - start:↵
start = i - (max_len - 1) // 2↵
end = i + max_len // 2↵
return s[start:end + 1]↵
↵
def expand_around_center(s, left, right):↵
while left >= 0 and right < len(s) and s[left] == s[right]:↵
left -= 1↵
right += 1↵
return right - left - 1↵
</code>