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别人都用线段树合并,我却偏偏dsu on tree...... 阅读全文
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乖巧可爱的卢卡斯定理!(同时也很朴素~) 阅读全文
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扫描线求面积 阅读全文
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dsu on tree × 状压,hhh 阅读全文
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dsu on tree......感觉很暴力的算法居然把n^2变成了nlogn ! 阅读全文
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There are 10 kinds of people in the world, who knows binary and who doesn't. 阅读全文
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当DP爱上KMP...... 阅读全文
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KMP算法详解。字符串匹配走一波! 阅读全文