正在访华的德国总理默茨26日下午在浙江杭州率团参访宇树科技。根据行程安排，默茨一行还将参访在华德企。
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」
，更多细节参见体育直播
"Having been a contestant, a contributor and now a host, I get to meet people I've been in the shoes of - it's a unique journey," she tells the BBC.
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