"rationale": "提供4个样例，覆盖了无需操作、一次修改、两个元素和target_gap=0的典型场景，解释清晰，有助于理解任务。", ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible resultsSome results have been hidden because they may be inaccessible to you
Show inaccessible results