测试评估
| 指标 | 结果 |
|---|---|
| Base 测试 | PASS |
| Plus 测试 | PASS |
| 代码长度 | 283 字符 |
模型生成的代码 （283 字符）
def first_repeated_char(s: str) -> str | None:
"""
Returns the first repeated character in the given string.
If no character repeats, returns None.
"""
seen = set()
for ch in s:
if ch in seen:
return ch
seen.add(ch)
return NoneBase 失败测试用例
- 无失败测试
Plus 失败测试用例
- 无失败测试