Member: Chairman Jing and XGN Also: Dummy Rong 19:35 2019/4/6 Pretest Passed: A,B,C,D,E ProblemSolverFSTABothNOBBothNOCCM.J.NODCM.J.NOEXGNNO A good competition 🙂

应XZM要求，这次改用中文 I told you there was nothing wrong with %I64d and %lld!XGN 预言：6题省选题中至少有3题和数据结构有关 Problem A 给出长度为N的整数数组A。求出A中区间异或值最大的K个的异或和。 好吧，其实60分很好拿（N小于等于1000）。但……

JSOI 2019 Diary Day 0 I came from the White House --ZKY Morning Get up at 7:40(can't sleep well) then watched Anime until 10am. Gonna take a Didi to South Station but waited for 20 minutes without seeing a car come. Then finally get a Didi Zhua……