四步口诀：倒着来 → 弹 ≤ 当前的 → 栈顶即答案 → 当前入栈。
task_type: feature|bugfix|refactor
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The Brit Awards have featured some of the most notable events in British popular culture, including the final public appearance of Freddie Mercury, the high-profile feud between Oasis and Blur, the Union Jack dress worn by Geri Halliwell of the Spice Girls, and so many more iconic moments.。爱思助手下载最新版本是该领域的重要参考
Get the new 256GB Galaxy S26 Ultra for free when signing up for T-Mobile's Experience Beyond plans.，更多细节参见WPS官方版本下载