BZOJ2802Warehouse Store题解

【BZOJ2802Warehouse Store题解】的更多相关文章

BZOJ2802Warehouse Store题解

链接我太菜了,连贪心题都不会写... 贪心思路很简单,我们能满足顾客就满足他,如果满足不了,就看之前的顾客中有没有需求比该顾客多的顾客,如果有的话改为卖给这位顾客会使解更优所以我们用一个优先队列维护一下所有卖的顾客,然后每此判断一下就好了 # include<iostream> # include<cstdio> # include<algorithm> # include<cstring> # include<cmath> # inclu…

算法与数据结构基础 - 哈希表(Hash Table)

Hash Table基础哈希表(Hash Table)是常用的数据结构,其运用哈希函数(hash function)实现映射,内部使用开放定址.拉链法等方式解决哈希冲突,使得读写时间复杂度平均为O(1). HashMap(std::unordered_map).HashSet(std::unordered_set)的原理与Hash Table一样,它们的用途广泛.用法灵活,接下来侧重于介绍它们的应用. 相关LeetCode题: 706. Design HashMap 题解 705. Des…

大家AK杯灰天飞雁NOIP模拟赛题解/数据/标程

数据 http://files.cnblogs.com/htfy/data.zip 简要题解桌球碰撞纯模拟,注意一开始就在袋口和v=0的情况.v和坐标可以是小数.为保险起见最好用extended/double类型. program prob1; var ans:array[0..6,0..600] of longint; n,i,j:longint; a0,r0,px,py,vx,vy,left,t,newp:extended; flag:boolean; function dist(x1,…

BZOJ2802: [Poi2012]Warehouse Store

2802: [Poi2012]Warehouse Store Time Limit: 10 Sec Memory Limit: 64 MBSec Special JudgeSubmit: 121 Solved: 65[Submit][Status] Description 有一家专卖一种商品的店,考虑连续的n天. 第i天上午会进货Ai件商品,中午的时候会有顾客需要购买Bi件商品,可以选择满足顾客的要求,或是无视掉他. 如果要满足顾客的需求,就必须要有足够的库存.问最多能够满足多少个顾客的需…

【LeetCode题解】二叉树的遍历

我准备开始一个新系列[LeetCode题解],用来记录刷LeetCode题,顺便复习一下数据结构与算法. 1. 二叉树二叉树(binary tree)是一种极为普遍的数据结构,树的每一个节点最多只有两个节点--左孩子结点与右孩子结点.C实现的二叉树: struct TreeNode { int val; struct TreeNode *left; // left child struct TreeNode *right; // right child }; DFS DFS的思想非常朴素:根据…

Codeforces Round #257 (Div. 1)A~C(DIV.2-C~E)题解

今天老师(orz sansirowaltz)让我们做了很久之前的一场Codeforces Round #257 (Div. 1),这里给出A~C的题解,对应DIV2的C~E. A.Jzzhu and Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jzzhu has a big rectangular cho…

usaco training 4.1.2 Fence Rails 题解

Fence Rails题解 Burch, Kolstad, and Schrijvers Farmer John is trying to erect a fence around part of his field. He has decided on the shape of the fence and has even already installed the posts, but he's having a problem with the rails. The local lumbe…