codeforces 723C : Polycarp at the Radio
Description
Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be represented as a sequence a1, a2, ..., an, where ai is a band, which performs the i-th song. Polycarp likes bands with the numbers from 1 to m, but he doesn't really like others.
We define as bj the number of songs the group j is going to perform tomorrow. Polycarp wants to change the playlist in such a way that the minimum among the numbers b1, b2, ..., bm will be as large as possible.
Find this maximum possible value of the minimum among the bj (1 ≤ j ≤ m), and the minimum number of changes in the playlist Polycarp needs to make to achieve it. One change in the playlist is a replacement of the performer of the i-th song with any other group.
The first line of the input contains two integers n and m (1 ≤ m ≤ n ≤ 2000).
The second line contains n integers a1, a2, ..., an (1 ≤ ai ≤ 109), where ai is the performer of the i-th song.
In the first line print two integers: the maximum possible value of the minimum among the bj (1 ≤ j ≤ m), where bj is the number of songs in the changed playlist performed by the j-th band, and the minimum number of changes in the playlist Polycarp needs to make.
In the second line print the changed playlist.
If there are multiple answers, print any of them.
4 2
1 2 3 2
2 1
1 2 1 2
Input
7 3
1 3 2 2 2 2 1
2 1
1 3 3 2 2 2 1
4 4
1000000000 100 7 1000000000
1 4
1 2 3 4
In the first sample, after Polycarp's changes the first band performs two songs (b1 = 2), and the second band also performs two songs (b2 = 2). Thus, the minimum of these values equals to 2. It is impossible to achieve a higher minimum value by any changes in the playlist.
In the second sample, after Polycarp's changes the first band performs two songs (b1 = 2), the second band performs three songs (b2 = 3), and the third band also performs two songs (b3 = 2). Thus, the best minimum value is 2.
正解:贪心
解题报告:
最优的次数显然,方案的话,每次暴力找到一个多余的,并把多出来的部分给别的缺少的即可。
//It is made by jump~
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <ctime>
#include <vector>
#include <queue>
#include <map>
#include <set>
using namespace std;
typedef long long LL;
const int inf = (<<);
const int MAXN = ;
int n,m,ans,zong;
int a[MAXN],cnt[MAXN];
bool pd[MAXN]; inline int getint()
{
int w=,q=; char c=getchar();
while((c<'' || c>'') && c!='-') c=getchar(); if(c=='-') q=,c=getchar();
while (c>='' && c<='') w=w*+c-'', c=getchar(); return q ? -w : w;
} inline void work(){
n=getint(); m=getint(); for(int i=;i<=n;i++) a[i]=getint();
for(int i=;i<=n;i++) if(a[i]<=m) cnt[a[i]]++;
ans=n/m; printf("%d ",ans); bool flag=false;
for(int i=;i<=n;i++) {
if(a[i]<=m && cnt[a[i]]>ans) {
flag=false;
for(int j=;j<=m;j++) {
if(cnt[j]<ans) {
flag=true;
cnt[j]++; cnt[a[i]]--;a[i]=j; break;
}
}
if(flag) zong++;
}
else if(a[i]>m) {
flag=false;
for(int j=;j<=m;j++) {
if(cnt[j]<ans) {
flag=true;
cnt[j]++; a[i]=j;
break;
}
}
if(flag) zong++;
}
}
printf("%d\n",zong);
for(int i=;i<=n;i++) printf("%d ",a[i]);
} int main()
{
work();
return ;
}
codeforces 723C : Polycarp at the Radio的更多相关文章
- Codeforces 723C. Polycarp at the Radio 模拟
C. Polycarp at the Radio time limit per test: 2 seconds memory limit per test: 256 megabytes input: ...
- CodeForces 723C Polycarp at the Radio (题意题+暴力)
题意:给定 n 个数,让把某一些变成 1-m之间的数,要改变最少,使得1-m中每个数中出现次数最少的尽量大. 析:这个题差不多读了一个小时吧,实在看不懂什么意思,其实并不难,直接暴力就好,n m不大. ...
- Codeforces Round #375 (Div. 2) C. Polycarp at the Radio 贪心
C. Polycarp at the Radio time limit per test 2 seconds memory limit per test 256 megabytes input sta ...
- Codeforces 659F Polycarp and Hay 并查集
链接 Codeforces 659F Polycarp and Hay 题意 一个矩阵,减小一些数字的大小使得构成一个连通块的和恰好等于k,要求连通块中至少保持一个不变 思路 将数值从小到大排序,按顺 ...
- 【23.48%】【codeforces 723C】Polycarp at the Radio
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard o ...
- 【Codeforces 723C】Polycarp at the Radio 贪心
n个数,用最少的次数来改变数字,使得1到m出现的次数的最小值最大.输出最小值和改变次数以及改变后的数组. 最小值最大一定是n/m,然后把可以改变的位置上的数变为需要的数. http://codefor ...
- Codeforces Round #375 (Div. 2) Polycarp at the Radio 优先队列模拟题 + 贪心
http://codeforces.com/contest/723/problem/C 题目是给出一个序列 a[i]表示第i个歌曲是第a[i]个人演唱,现在选出前m个人,记b[j]表示第j个人演唱歌曲 ...
- cf723c Polycarp at the Radio
Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be re ...
- codeforces 727F. Polycarp's problems
题目链接:http://codeforces.com/contest/727/problem/F 题目大意:有n个问题,每个问题有一个价值ai,一开始的心情值为q,每当读到一个问题时,心情值将会加上该 ...
随机推荐
- NET Core中怎么使用HttpContext.Current
NET Core中怎么使用HttpContext.Current 阅读目录 一.前言 二.IHttpContextAccessor 三.HttpContextAccessor 回到目录 一.前言 我们 ...
- VMware Fusion DHCP方式下如何指定虚拟机IP地址
默认情况下,vmware fusion中的虚拟机,网卡设置成dhcp(动态分配 )时,会分配一个IP地址,但这个IP通常很难记,如果我们想为某台虚拟机挑一个好记的IP地址,可以按如下步骤操作: 命令行 ...
- 工作随笔——pre-commit钩子限制日志长度和提交的文件类型
2014-09-18:解决Subversion edge 的hook中文乱码问题 近期检查SVN时发现备份好的文件体积异常庞大.才跑2个月备份出来的大小就有4G多.仔细查询发现很多很多IDE自动生成的 ...
- Python2.3-原理之语句和语法
此节来自于<Python学习手册第四版>第三部分 一.python语句简介(第10章) 1.首先记得一个概念:a.程序由模块构成:b.模块包含语句:c.语句包含表达式:d.表达式建立并处理 ...
- 读懂IL代码就这么简单(二)
一 前言 IL系列 第一篇写完后 得到高人指点,及时更正了文章中的错误,也使得我写这篇文章时更加谨慎,自己在了解相关知识点时,也更为细致.个人觉得既然做为文章写出来,就一定要保证比较高的质量,和正确率 ...
- Android闹钟设置的解决方案
Android设置闹钟并不像IOS那样这么简单,做过Android设置闹钟的开发者都知道里面的坑有多深.下面记录一下,我解决Android闹钟设置的解决方案. 主要问题 API19开始AlarmMan ...
- STM32 (战舰)
一.战舰STM32 1.引脚描述表---有ft 兼容5V 2.原理图----有ADC,不兼容5V 3.(1)学会基本外设:GPIO输入输出,外部中断,定时器,串口. (2)学会外设接口:SPI IIC ...
- 关于拉格朗日乘子法和KKT条件
解密SVM系列(一):关于拉格朗日乘子法和KKT条件 标签: svm算法支持向量机 2015-08-17 18:53 1214人阅读 评论(0) 收藏 举报 分类: 模式识别&机器学习(42 ...
- CXF集成Spring实现webservice的发布与请求
CXF集成Spring实现webservice的发布(服务端) 目录结构: 主要代码: package com.cxf.spring.pojo; public class User { int id ...
- 【UOJ #29】【IOI 2014】holiday
http://uoj.ac/problem/29 cdq四次处理出一直向左, 一直向右, 向左后回到起点, 向右后回到起点的dp数组,最后统计答案. 举例:\(fi\)表示一直向右走i天能参观的最多景 ...