poj_2393 Yogurt factory 贪心】的更多相关文章

Yogurt factory Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 16669   Accepted: 8176 Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000) weeks, the price of milk…
Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000) weeks, the price of milk and labor will fluctuate weekly such that it will cost the company C_i (1 <= C_i <= 5,000) c…
http://poj.org/problem?id=2393 奶牛们有一个工厂用来生产奶酪,接下来的N周时间里,在第i周生产1 单元的奶酪需要花费ci,同时它们也有一个储存室,奶酪放在那永远不会坏,并且可以无限放,每一单元奶酪放在那的价格恒定为每周s.然后奶牛在第i周会交付顾客yi的奶酪,让你求最小花费. 因为第i周的奶酪,可以在第i周生产,也可以在前几周生产,然后储存.通过把s转化为花费,跟原有花费去比较,取一个最小值,这样从头到尾,每一周都可以取得一个花费的最小值.贪心求解. #includ…
题目链接:https://cn.vjudge.net/problem/POJ-2393 题意 有一个生产酸奶的工厂,还有一个酸奶放在其中不会坏的储存室 每一单元酸奶存放价格为每周s元,在接下来的N周时间里,在第i周生产1单元的酸奶需要花费ci,然后奶牛在第i周会交付顾客yi的酸奶 求最小花费 思路 多生产的酸奶可以放在下周来卖,其实可以看作提前生产下周酸奶的成本会增加s元 维护一个最小的价格即可 代码 #include <cstdio> int main(void){ int n, s; wh…
Yogurt factory Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8205   Accepted: 4197 Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000) weeks, the price of milk…
http://www.lydsy.com/JudgeOnline/problem.php?id=1680 看不懂英文.. 题意是有n天,第i天生产的费用是c[i],要生产y[i]个产品,可以用当天的也可以用以前的(多生产的).每单位产品保存一天的费用是s.求最小费用 显然贪心,每次查找之前有没有哪一天保存到现在的价值最小,然后比较更新.. #include <cstdio> #include <cstring> #include <cmath> #include <…
Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000) weeks, the price of milk and labor will fluctuate weekly such that it will cost the company C_i (1 <= C_i <= 5,000) c…
Yogurt factory Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6821   Accepted: 3488 Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000) weeks, the price of milk…
1680: [Usaco2005 Mar]Yogurt factory Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 106  Solved: 74[Submit][Status][Discuss] Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10,000)…
1740: [Usaco2005 mar]Yogurt factory 奶酪工厂 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 119  Solved: 100[Submit][Status][Discuss] Description The cows have purchased a yogurt factory that makes world-famous Yucky Yogurt. Over the next N (1 <= N <= 10…