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====== 2024暑期训练第一场加训 ====== [[https://codeforces.com/group/08xATaaemG/contest/538671|比赛链接]] ===== 赛时记录 ===== 第一次三人场，fks ljz读题，my负责签到，my在6min 19min 和32min 签了A、M、H。这个时候，ljz会了I，my会了O，然后my先写O，1h20min，交了一发O wa了，然后肉眼开始debug，开始换ljz写I，1h30min也交了一发，wa了，两边开始串行debug，后面ljz写了数据生成器，拍了一下找出了bug。在2h20min过了I。后面发现L也会了，就在2h40min过了L，同时my重构了O，也在2h50min过了O。后面ljz手玩了D之后发现了结论，fks把D实现了。之前一直纠结的N似乎陷入了死胡同，ljz这个时候又N了，把N的关键idea想出来了，过了N。后面fks和my讨论出了F，最后写完没交上去，同时ljz把C的容斥和分块矩阵的idea想出来了。在4h55min过了。 ===== 总结 ===== fks纯纯拖后腿 ===== Dirt ===== O(-6):重构了，没找出之前错哪 I(-4) C(-4)