保存最为完好的是东院。最出彩的是它的门楼，西方哥特式门顶和中国传统的砖雕结合，使其芳华难掩。门匾上书“平为福”，两侧影壁砖雕富贵牡丹花开。院内主宅正房是2层砖碹窑洞，门楣高处挂有“自省堂”阴刻石匾。西厢房主门留有石刻对联一副：“文成蕉叶书犹绿，吟到梅花句亦香”。东厢房主门留有石刻对联一副：“水色凝蓝辉宇栋，山光摇翠上楼台”。
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，详情可参考91视频
* 核心思路：单调递增栈 + 控制删除位数（k0），优先移除高位大数，保证剩余数字最小
Just outside the perimeter fence stand the hulking remains of grand stone engine houses, a testament to Cornwall’s proud tin and copper mining history.
the era of the traveler's check. A lot of consumers didn't want to carry a lot