C. Bear and Colors
2 seconds
256 megabytes
standard input
standard output
Bear Limak has n colored balls, arranged in one long row. Balls are numbered 1 through n, from left to right. There are n possible colors, also numbered 1 through n. The i-th ball has color ti.
For a fixed interval (set of consecutive elements) of balls we can define a dominant color. It's a color occurring the biggest number of times in the interval. In case of a tie between some colors, the one with the smallest number (index) is chosen as dominant.
There are
non-empty intervals in total. For each color, your task is to count the number of intervals in which this color is dominant.
The first line of the input contains a single integer n (1 ≤ n ≤ 5000) — the number of balls.
The second line contains n integers t1, t2, ..., tn (1 ≤ ti ≤ n) where ti is the color of the i-th ball.
Print n integers. The i-th of them should be equal to the number of intervals where i is a dominant color.
4
1 2 1 2
7 3 0 0
3
1 1 1
6 0 0
In the first sample, color 2 is dominant in three intervals:
- An interval [2, 2] contains one ball. This ball's color is 2 so it's clearly a dominant color.
- An interval [4, 4] contains one ball, with color 2 again.
- An interval [2, 4] contains two balls of color 2 and one ball of color 1.
There are 7 more intervals and color 1 is dominant in all of them.
模拟每个区间,通过if(cnt[a[j]]>cnt[a[best]]||(cnt[a[j]] == cnt[a[best]]&&a[j]<a[best])) best = j来转移
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
using namespace std;
const int maxn = ;
int a[maxn],cnt[maxn],ans[maxn];
void solve(){
int n;
scanf("%d",&n);
for(int i = ; i<=n; i++) scanf("%d",&a[i]);
for(int i = ; i<=n; i++){
// ans[a[i]]++;
int best = i;
memset(cnt,,sizeof(cnt));
// for(int j = i; j<=n; j++) cnt[a[j]] = 0;
for(int j = i; j<=n; j++)
{
cnt[a[j]]++;
if(cnt[a[j]]>cnt[a[best]]||(cnt[a[j]] == cnt[a[best]]&&a[j]<a[best])) best = j;
ans[a[best]]++;
}
}
for(int i = ; i<n; i++)
{
printf("%d ",ans[i]);
}
printf("%d",ans[n]); }
int main()
{
solve();
return ;
}
C. Bear and Colors的更多相关文章
- codeforces 351 div2 C. Bear and Colors 暴力
C. Bear and Colors time limit per test 2 seconds memory limit per test 256 megabytes input standard ...
- Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) C. Bear and Colors 暴力
C. Bear and Colors 题目连接: http://www.codeforces.com/contest/673/problem/C Description Bear Limak has ...
- codeforces 673C C. Bear and Colors(暴力)
题目链接: C. Bear and Colors time limit per test 2 seconds memory limit per test 256 megabytes input s ...
- Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) C - Bear and Colors
题目链接: http://codeforces.com/contest/673/problem/C 题解: 枚举所有的区间,维护一下每种颜色出现的次数,记录一下出现最多且最小的就可以了. 暴力n*n. ...
- [Codeforces673C]Bear and Colors(枚举,暴力)
题目链接:http://codeforces.com/contest/673/problem/C 题意:给一串数,不同大小的区间内出现次数最多的那个数在计数的时候会+1,问所有区间都这样计一次数,所有 ...
- C. Bear and Colors 区间枚举的技巧
http://codeforces.com/problemset/problem/673/C 先说一个枚举区间的技巧,枚举前缀,不要枚举后缀. 就是下面这个代码是不好的 ; i <= n; ++ ...
- 【Henu ACM Round#16 B】 Bear and Colors
[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] O(n^2)枚举每一个区间. 然后维护这个区间里面的"统治数字"是什么. 对于每个区间cnt[统治数字]++; ...
- Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) C (用map 超时)
C. Bear and Colors time limit per test 2 seconds memory limit per test 256 megabytes input standard ...
- Sort Colors
Given an array with n objects colored red, white or blue, sort them so that objects of the same colo ...
随机推荐
- lldpd-0.7.7代码解读(send_pdu部分)
此文档是经过逆序推到出的,可能有错误之处,敬请指教,谢谢. 1)interfaces_update 更新一些接口信息 2)levent_iface_subscribe 该接口通过socket通信(非阻 ...
- Android实现Excel表格,且表格能左右、上下滑动
1.自定义实现一个水平滚动控件HorizontalScrollView import android.content.Context; import android.util.AttributeSet ...
- Java-if 嵌套结构
import java.util.Scanner; public class ifs{ public static void main(String args[]){ Scanner in=new S ...
- away 3d的一些问题
不能成功draw m3u8视频流问题: Texture2DBase.as return context.createRectangleTexture(_width, _height, Context3 ...
- OpenGL-------状态机
状态机就是一种存在于理论中的机器,它具有以下的特点: 1. 它有记忆的能力,能够记住自己当前的状态. 2. 它可以接收输入,根据输入的内容和自己的状态,修改自己的状态,并且可以得到输出. 3. 当它进 ...
- UIImageView 的contentMode属性应用
UIImageView 的contentMode这个属性是用来设置图片的显示方式,如居中.居右,是否缩放等,有以下几个常量可供设定:UIViewContentModeScaleToFillUIView ...
- Learning Java characteristics (Java in a Nutshell 6th)
Java characteristics: Java .class files are machine-independent, including the endianness. Java .cla ...
- JavaScript(1)——变量、函数声明及作用域
这是我的第一篇博客文章,本人不才,文笔也不好,所以可能写的有点凌乱.有什么不对的地方还望见谅.不过每天进步一小步,总有一天会迈出那一大步.以下内容是我对变量.函数声明及函数表达式.作用域的理解. [变 ...
- Spark集群搭建中的问题
参照<Spark实战高手之路>学习的,书籍电子版在51CTO网站 资料链接 Hadoop下载[链接](http://archive.apache.org/dist/hadoop/core/ ...
- sessionStorage用于分页,瀑布流和存储用户数据等
在手机网页开发中,会用到分页和瀑布流来分量显示数据.这里会遇到一个问题.当点击某条数据进入详情后,再按手机的返回键会到上一个页面,该页面是重新加载的. 本人在微信里用内置的qq浏览器打开页面,wind ...