start from the end of the text (below), and as you move left, you will encounter a lot of “possible matches” that are waiting for confirmation. all the heavy computation has already been done in the states of the automaton, which are reused for subsequent characters, so after initial wind-up time, you will not create any new states, just reusing the same ones over and over again, and marking the positions of matches as you go.
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体验方面，Snap 支持触控交互，用户可快速调节曝光、切换滤镜或拍摄模式，并支持一键镜像翻转画面。该配件不仅兼容手机原生相机 App，也可配合主流美图或专业摄影 App 使用，用后置镜头完成自拍或视频创作。
采访那天是大年初二，河北雄安新区启动区的街道两旁灯笼高挂，洋溢着喜庆的年味。
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