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=====A===== *题意：找到距离起始点最近的没有装修的楼层 *题解：水题，练手速 =====B===== *题意：$s$个对手，答错淘汰，每次淘汰$t$人，得分$t/s$，最后只剩自己，求最大得分 *题解：易证每次淘汰一个人是最优的，遍历即可 =====C===== *题意：q个时间点，每个时间点会有格子可通过状态变化，询问每次能否到达终点 *题解：因为只有两行，已知障碍有三种情况，每次$check$周围的方块，记录总障碍的个数，为0即可到达 =====D===== *题意：根据规律存在特殊点，每到达一个特殊点可以得一分，每次移动代价为$t$，求最大得分 *题解：数据范围能看出最多不超过$60$个，暴力跑即可（注意爆$ll$） ---- （$E$、$F$下课再补吧//QAQ//）