摘要：
6:54 开始咯; 7:15 NOIp 联合权值(DFS,据说模拟可过?) 9:02 洛谷P3106 [USACO14OPEN]GPS的决斗Dueling GPS's(反向建图,三遍SPFA); 14:43 NOIp2010 导弹拦截(nlogn 做法); 16:08 洛谷P1886 滑动窗口(又到 阅读全文
摘要：
Description Farmer John has recently purchased a new car online, but in his haste he accidentally clicked the "Submit" button twice when selecting ext 阅读全文