for (let i = len - 1; i = 0; i--) {
（五）多次发送淫秽、侮辱、恐吓等信息或者采取滋扰、纠缠、跟踪等方法，干扰他人正常生活的；
。业内人士推荐搜狗输入法2026作为进阶阅读
"Whether HS2 is a good or bad thing is debatable, but I tell you what, if they built the railway and they didn't do the archaeology that would be more tragic," said historian Graham Evans, who chairs the Northamptonshire Battlefields Society.
// 本地测试示例：head = [2,1,5] → 输出 [5,5,0]