结了silver的坑来做做看gold的神题（肯定要被虐翻了
现在做了几题
40
【BZOJ1230】【USACO2008 Nov】开关灯 线段树
【BZOJ1231】【USACO2008 Nov】混乱的奶牛 状压DP
【BZOJ1233】【USACO2009 Open】干草堆 开始YY了个贪心是萎的囧。。单调队列
【BZOJ1571】【USACO2009 Open】滑雪课 贪心+DP
【BZOJ1572】【USACO2009 Open】工作安排 堆，倒着贪心
【BZOJ1574】【USACO2009 Jan】地震损坏 DFS一遍就好了，不要走报告点相邻的节点
【BZOJ1575】【USACO2009 Jan】气象牛 DP
【BZOJ1577】【USACO2009 Feb】庙会捷运 按L排序后用堆贪心
【BZOJ1578】【USACO2009 Feb】股票市场 可以每天买后在第二天卖出再买入。这样就是完全背包了。
后面做的一些题目懒得写题解了。（暂时先结了？
2023年1月31日 01:43
It is no secret that the USACO self-cultivation program is becoming increasingly popular. However, it has been reported that some individuals are taking advantage of the system and exploiting it engagement rings for their own benefit. This is a serious matter that must be addressed promptly in order to protect the integrity of the program. While there is no doubt that the USACO self-cultivation program provides a valuable service, it is important to ensure that it is not misused by those who seek to gain an unfair advantage.