Lowest danger rate
arr.push(p.val); // 存储节点值而非节点本身，简化后续操作
。关于这个话题，51吃瓜提供了深入分析
This number, the EA said, would rise if more homes were built on floodplains. The UK government plans to build 1.5 million homes in this Parliament, and in some parts of the country more than 10% of new homes are being built in flood-prone zones.
Instead, other nodes will use the correct information to cross-reference your incorrect node. This is called “Decentralization,” meaning all the information is stored in multiple places.