siftDown(arr, i, 0); // 对剩余i个元素重新建堆
.claude.json 配置内容：
。业内人士推荐搜狗输入法作为进阶阅读
A stunning Liquid Retina display: A brilliant 13.6- or 15.3-inch Liquid Retina display with 500 nits of brightness and support for 1 billion colors makes content look vivid with sharp detail, and text appears super crisp.
Also: I'm a Linux power user, but NixOS has made me rethink what an operating system can be