VK CUP ROUND1
SkyDec
posted @ 2015年3月22日 14:24
in 杂乱无章
, 1742 阅读
本来想早点睡觉不想打了后来被大爷怂恿去打了
比赛延迟了15分钟真是感动
看UOJ群里的大爷们说开场要先看B，于是我就去看B了
看完后感觉就是枚举高度把贡献排序后贪心好了，于是写掉了，交上去CE了，发现默认语言是python，改了下6min过
看到E有很多人过了于是去看，于是一开始我理解的题意：
给你一坨货币，然后给目标值，求最少用几张货币凑成目标值
这TM不是NP问题吗你在逗我？
然后去看看UOJ群
满满一种被坑了的感觉，仔细看了下题目好像真的有最多用两种，这种东西不是应该加粗么！
然后写掉了，交上去CE了，发现默认语言怎么又是python!22min才过
然后去想C，感觉好像直接扫描线线段树就好了，于是开始写啊写
写到一半有个大爷说不小心用我的号交了一发B
发现我的B从6min变成34min了，感觉很感动，继续写C
写完后WA掉了，检查了一会儿发现我赋线段树初值时n+5打成m+5。。。果然这种东西还是1e9大法好
水平比较低，61min才过
然后去看D，怎么一眼不可做的感觉，然后再去看看A，没啥思路，于是痛苦地挣扎，突然智商上线发现D是个,b贪心，于是写掉了，94min才过
于是就一直颓到比赛结束了
然后发现D喜闻乐见地FST了
发现multiset的erase是全删
人逗不能多说啊，一道用个队列就可以模拟的题我要作死地multiset还FST了，不FST的话应该能20名吧
rating更完发现居然涨了10分，有点感动啊
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