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CF1165F2 Microtransactions (hard version) 题目描述 The only difference between easy and hard versions is constraints. Ivan plays a computer game that cont 阅读全文
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傻叉题 优先级:dfs不能bfs 剪枝:确定行不通的点不用再走第2遍 unable[][]; (m xx) 2 include include include include include include include using namespace std; //how to get it i 阅读全文