--- tags: note --- # TOPC 卡車題解 ## pA 只有回文長度=2,3的case 將a->b當成點,建邊 ## pE 可證一定有解 $\begin{align} \frac{2}{k}=\frac{1}{x}+\frac{1}{y} \Rightarrow(2x-k)(2y-k)=k^2 \end{align}$ ## pG priority_queue + 枚舉第一個看得片到最後一個看得片的位置 ## pH python 二分搜 or C++ 進制轉換
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