res[realIdx] = stack.length ? stack.at(-1) : -1;
High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.。关于这个话题，搜狗输入法下载提供了深入分析
Continue reading...，这一点在搜狗输入法2026中也有详细论述
you get with an offset of 0, which is a use of language that I find charming.