题面 约翰开车来到镇上,他要带V吨饲料回家.如果他的车上有X吨饲料,每公里就要花费X^2元,开车D公里就需要D* X^2元.约翰可以从N家商店购买饲料,所有商店都在一个坐标轴上,第i家店的位置是Xi,饲料的售价为每吨Ci元,库存为Fi.n≤500,k≤10000. 输入格式 第1行:三个整数 V,E,N 第2..N+12..N+1行:第i+1行的三个整数代表Xi​,Fi​,Ci​ . 输出格式 一个整数,代表最小花费. 数据范围 1 ≤ V≤ 10000 , 1 ≤ E ≤ 500 , 1 ≤…

数轴上n<=500个站可以买东西,每个站位置Xi,库存Fi,价格Ci,运东西价格是当前运载重量的平方乘距离,求买K<=10000个东西到达点E的最小代价. f[i,j]--到第i站不买第i站东西的最大值,转移时决策的是买上一个站的东西,f[i,j]=f(i-1,k)+(j-k)*C(i-1)+j*j*(Xi-Xi-1). 这个拆一下就可以单调队列了. #include<stdio.h> #include<string.h> #include<stdlib.h>…

洛谷 P2616 [USACO10JAN]购买饲料II Buying Feed, II https://www.luogu.org/problemnew/show/P2616 题目描述 Farmer John needs to travel to town to pick up K (1 <= K <= 100) pounds of feed. Driving D miles with K pounds of feed in his truck costs D*K cents. The cou…

P2616 [USACO10JAN]购买饲料II Buying Feed, II 题目描述 Farmer John needs to travel to town to pick up K (1 <= K <= 100) pounds of feed. Driving D miles with K pounds of feed in his truck costs D*K cents. The county feed lot has N (1 <= N <= 100) stores…

题目描述 约翰开车来到镇上,他要带 KKK 吨饲料回家.运送饲料是需要花钱的,如果他的车上有 XXX 吨饲料,每公里就要花费 X2X^2X2 元,开车D公里就需要 D×X2D\times X^2D×X2 元.约翰可以从 NNN 家商店购买饲料,所有商店都在一个坐标轴上,第 iii 家店的位置是 XiX_iXi​ ,饲料的售价为每吨 CiC_iCi​ 元,库存为 FiF_iFi​ . 约翰从坐标 X=0X=0X=0 开始沿坐标轴正方向前进,他家在坐标 X=EX=EX=E 上.为了带 KKK 吨饲料…

2020: [Usaco2010 Jan]Buying Feed, II Time Limit: 3 Sec  Memory Limit: 64 MBSubmit: 220  Solved: 162[Submit][Status] Description (buying.pas/buying.in/buying.out 128M 1S) Farmer John needs to travel to town to pick up K (1 <= K <= 100) pounds of feed…

洛谷 P2616 [USACO10JAN]购买饲料II Buying Feed, II 洛谷传送门 JDOJ 2671: USACO 2010 Jan Silver 2.Buying Feed, II JDOJ传送门 Description Farmer John needs to travel to town to pick up K (1 <= K <= 100) The county feed lot has N (1 <= N <= 100) stores (conveni…

Problem F: F BUYING FEED Description Farmer John needs to travel to town to pick up K (1 <= K <= 100)pounds of feed. Driving D miles with K pounds of feed in his truck costs D*K cents. The county feed lot has N (1 <= N <= 100) stores (convenie…

BUYING FEED 时间限制:3000 ms  |  内存限制:65535 KB 难度:4   描述 Farmer John needs to travel to town to pick up K (1 <= K <= 100)pounds of feed. Driving D miles with K pounds of feed in his truck costs D*K cents. The county feed lot has N (1 <= N<= 100) s…

[BZOJ1618][Usaco2008 Nov]Buying Hay 购买干草 试题描述 约翰的干草库存已经告罄,他打算为奶牛们采购H(1≤H≤50000)磅干草． 他知道N(1≤N≤100)个干草公司,现在用1到N给它们编号．第i个公司卖的干草包重量为Pi(1≤Pi≤5000)磅,需要的开销为Ci(l≤Ci≤5000)美元．每个干草公司的货源都十分充足,可以卖出无限多的干草包．    帮助约翰找到最小的开销来满足需要,即采购到至少H磅干草． 输入 第1行输入N和日,之后N行每行输入一个Pi和…