方向遍历顺序说明下一个倒序（从右往左）先处理右侧，栈里存「右侧候选」上一个正序（从左往右）先处理左侧，栈里存「左侧候选」
优化：如果某轮没有发生交换，说明已有序，提前结束
。搜狗输入法2026是该领域的重要参考
"I don't think CNN would become Fox News overnight," says Seth Stern, chief advocate at the Freedom of the Press Foundation, noting that there are already several popular news outlets serving right-wing audiences. "But coverage could be softened, critiques of the Trump administration could be reduced, hosts that are known for being particularly critical... could be fired."
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36，详情可参考WPS下载最新地址
Что думаешь? Оцени!，详情可参考快连下载-Letsvpn下载
– character identity