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# Export as CSV

res[i] = stack.length ? stack.at(-1) : -1;

，详情可参考下载安装 谷歌浏览器 开启极速安全的 上网之旅。

记忆技巧：找「更大」→ 弹掉 ≤ 当前的（栈顶保留比当前大的）；找「更小」→ 弹掉 ≥ 当前的；找「相等可接受」→ 用 < / ，否则用 <= / =。

Pat McFadden, the Work and Pensions Secretary, said the issue of young Neets was "a long-term challenge".

First Quarter - Half of the Moon is lit on the right side. It looks like a half-Moon.