[BZOJ3312][Usaco2013 Nov]No Change Description Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases…

Description Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases (1 <= N <= 100,000), where th…

题目描述 Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases (1 <= N <= 100,000), where the ith p…

题意: K个硬币,要买N个物品.K<=16,N<=1e5 给定买的顺序,即按顺序必须是一路买过去,当选定买的东西物品序列后,付出钱后,货主是不会找零钱的.现希望买完所需要的东西后,留下的钱越多越好,如果不能完成购买任务,输出-1 =>K那么小...那么我们可以想到二进制枚举状态...然后转移...好像算不上状压dp吧...时间复杂度O(K2^Klogn) #include<cstdio> #include<cstring> #include<cctype&g…

Description 约翰带着 N 头奶牛在超市买东西,现在他们正在排队付钱,排在第 i 个位置的奶牛需要支付 Ci元.今天说好所有东西都是约翰请客的,但直到付账的时候,约翰才意识到自己没带钱,身上只有 K张消费卡,第 i 张卡里有 Vi 元余额. 问题是,这些消费卡都是一次性的,它们可以被收银机读取,但如果卡一旦离开了收银机,卡里的余额就会归零,而且超市也不负责找零!奶牛的队伍很长,不可能再调整她们的位置了,所以一张卡只能支付一段连在一起的账单.而且,一张账单只能用一张消费卡支付,超市的系统…

K个硬币,要买N个物品. 给定买的顺序,即按顺序必须是一路买过去,当选定买的东西物品序列后,付出钱后,货主是不会找零钱的.现希望买完所需要的东西后,留下的钱越多越好,如果不能完成购买任务,输出-1 $$k \leq 16 N \leq 100000$$ 考虑状压dp $dp[STATE]$表示状态为$STATE$的时候能买的最多的东西 记一下最大值 二分一下 .. #include <bits/stdc++.h> using namespace std; ; typedef long long…

听说KPM初二暑假就补完了啊%%% 先刷Gold再刷Silver(因为目测没那么多时间刷Silver,方便以后TJ2333(雾 按AC数降序刷 ------------------------------------------------------------------------------------------------------- bzoj1597: [Usaco2008 Mar]土地购买  斜率优化DP h升序,w降序. f[i]=min(f[j]+h[i]*w[j+1])…