int idx = arr[i] - min;
然而，本轮涨价与以往周期最大的不同在于一个关键变量——HBM（高带宽内存）的爆发式增长。AI芯片（如英伟达H200/B200）对HBM的需求是传统DRAM的数倍甚至数十倍。三大原厂将大量先进制程产能转向HBM，挤占了原本用于生产手机LPDDR（低功耗内存）的产能。这种“结构性短缺”成为本轮涨价的核心推手。
。关于这个话题，搜狗输入法2026提供了深入分析
backpressure: 'strict'
Today’s puzzle is a new twist on a classic genre: the “common knowledge” hat riddle in which logicians deduce facts about their hats based on what they know, and what they know others know.