Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals)
A
题意:给你人的坐标,钥匙的坐标,办公室的坐标。要求所有人能够拿到钥匙并且走到办公室的最短时间。一个位置只能有一个人,一个位置只有一把钥匙,人和钥匙可以在同一个位置。
思路:DP+贪心,dp[i]表示i这把钥匙被使用时人走的距离
代码:
#include<stdio.h>
#include<algorithm>
#include<string.h>
#define Inf 1e19;
#define ll long long
using namespace std;
int n,k;
ll p;
ll a[1100];
ll b[2200];
ll dp[2200];
int main()
{
while(~scanf("%d%d%I64d",&n,&k,&p))
{
for(int i=0; i<n; i++)
scanf("%I64d",&a[i]);
for(int i=0; i<k; i++)
scanf("%I64d",&b[i]);
sort(a,a+n);
sort(b,b+k);
ll ans=Inf;
memset(dp,0,sizeof(dp));
for(int i=0; i<k; i++)
{
if(i+n>k)
break;
for(int j=0; j<n; j++)
{
ll cnt=abs(b[i+j]-a[j])+abs(p-b[i+j]);
dp[i]=max(dp[i],cnt);
}
ans=min(ans,dp[i]);
}
printf("%I64d\n",ans);
}
return 0;
}
Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals)的更多相关文章
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals)
http://codeforces.com/contest/831 A. Unimodal Array time limit per test 1 second memory limit per te ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) Problem C (Codeforces 831C) - 暴力 - 二分法
Polycarp watched TV-show where k jury members one by one rated a participant by adding him a certain ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals)A,B,C
A:链接:http://codeforces.com/contest/831/problem/A 解题思路: 从前往后分别统计递增,相等,递减序列的长度,如果最后长度和原序列长度相等那么就输出yes: ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) Problem F (Codeforces 831F) - 数论 - 暴力
题目传送门 传送门I 传送门II 传送门III 题目大意 求一个满足$d\sum_{i = 1}^{n} \left \lceil \frac{a_i}{d} \right \rceil - \sum ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) Problem D (Codeforces 831D) - 贪心 - 二分答案 - 动态规划
There are n people and k keys on a straight line. Every person wants to get to the office which is l ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) Problem E (Codeforces 831E) - 线段树 - 树状数组
Vasily has a deck of cards consisting of n cards. There is an integer on each of the cards, this int ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) Problem A - B
Array of integers is unimodal, if: it is strictly increasing in the beginning; after that it is cons ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) A 水 B stl C stl D 暴力 E 树状数组
A. Unimodal Array time limit per test 1 second memory limit per test 256 megabytes input standard in ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) - D
题目链接:http://codeforces.com/contest/831/problem/D 题意:在一个一维坐标里,有n个人,k把钥匙(钥匙出现的位置不会重复并且对应位置只有一把钥匙),和一个终 ...
- Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) - C
题目链接:http://codeforces.com/contest/831/problem/C 题意:给定k个评委,n个中间结果. 假设参赛者初始分数为x,按顺序累加这k个评委的给分后得到k个结果, ...
随机推荐
- 算法练习LeetCode初级算法之动态规划
爬楼梯:斐波那契数列 假设你正在爬楼梯.需要 n 阶你才能到达楼顶. 每次你可以爬 1 或 2 个台阶.你有多少种不同的方法可以爬到楼顶呢? 注意:给定 n 是一个正整数. 非递归解法 class S ...
- shell执行Python并传参
shell: python test.py a1 222 test.py import sys print(sys.argv[1], type(sys.argv[1])) # a1 str print ...
- python读取数据库出txt报表
python出报表使用到了数据库访问,文件读写,字符串切片处理.还可以扩展到电子邮件的发送,异常处理以及定时批任务. 总之在学习中发现还是有蛮多乐趣在其中. #coding=utf-8 ' impor ...
- centos 防火墙端口开放
开放端口 永久的开放需要的端口 sudo firewall-cmd --zone=public --add-port=3000/tcp --permanent sudo firewall-cmd -- ...
- 微信小程序实战[01]
接触微信小程序也有一段时间了,以天气预报练一下手. 主要实现了以下功能: (1) 首页图标式菜单,便于以后扩展功能 (2)首页顶部滚动消息 (3)页面右上角三点菜单转发功能,便于小程序的传播 (4)天 ...
- 如何在OneNote for Mac 中插入文件附件?
OneNote 2016 Mac是一款非常方便的云笔记软件,可以随时记录您稍纵即逝的创意,灵感和发现,发挥您的潜能,简化你的生活和工作.有用户反应如何在OneNote for Mac 中插入文件附件呢 ...
- common skill
lunix watch and kill progress 1. ps -ef 2. kill -9 pid
- vue与js混用
Vue 的官方是不建议直接操作 DOM 的,Vue 的用途在于视图和数据的绑定.如果通过JQuery 直接操作 DOM 的话,势必会造成视图数据和模型数据的不匹配,这样 Vue 就失去它存在的意义了. ...
- pypi batch download
https://wiki.archlinux.org/index.php/Python_package_guidelines_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87 ...
- 从阿里巴巴面试题到java类加载机制
首先很经典的阿里巴巴面试题 加上我自己的一些疑惑代码 public class Text { public static int k = 0; public final int k1 = 3; //自 ...