this.arr = []; // 存储所有历史价格，通过索引快速获取对应价格
然而不可避免地，我们也要谈到 S26 系列的售价——
，推荐阅读谷歌浏览器【最新下载地址】获取更多信息
第二十一条 纳税人购进贷款服务的利息支出，及其向贷款方支付的与该贷款服务直接相关的投融资顾问费、手续费、咨询费等费用支出，对应的进项税额暂不得从销项税额中抵扣。
res[i] = stack.length ? cur - stack[stack.length - 1] : cur;
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.