博客
关于我
sdnu1172.Queue(双向LIS)
阅读量:286 次
发布时间:2019-03-01

本文共 1532 字,大约阅读时间需要 5 分钟。

Description

    On the PE,the teacher wants to choose some of n students to play games. Teacher asks n students stand in a line randomly(obviously,they have different height), then teacher tells someone to leave the queue(relative position is not change)to make the left students keep a special queue:

    Assuming that the left students’ numbers are 1, 2,……, m from left to right and their height are T1,T2,……,Tm. Then they satisfy T1<T2<......<Ti, Ti>Ti+1>……>Tm (1<=i<=m).
    Giving you the height of n students (from left to right), please calculate how many students left at most if you want to keep such a special queue.
 

Input

    The first line contains an integer n (2<=n<=1000) represents the number of students.

    The second line contains n integers Ti(150<=Ti<=200) separated by spaces, represent the height(cm) of student i.

Output

    One integer represents the number of the left students.

Sample Input

8186 180 150 183 199 130 190 180

Sample Output

5

n个学生,求满足身高左递增右递减的最长序列 可以没有递增部分或没有递减部分

正序 反序分别求一遍LIS,然后遍历每个点,正序+反序-1 即为结果 -1是因为该点会重复一次

#include 
using namespace std;int dp1[1005],dp2[1005],a[1005],b[1005];int main(){ int n; while(scanf("%d",&n)!=EOF) { memset(a,0,sizeof(a)); memset(b,0,sizeof(b)); for(int i=1;i<=n;i++) { scanf("%d",&a[i]); b[n-i+1]=a[i]; } memset(dp1,0,sizeof(dp1)); memset(dp2,0,sizeof(dp2)); dp1[1]=1; dp2[1]=1; for(int i=2;i<=n;i++) { dp1[i]=1; dp2[i]=1; for(int j=1;j

 

转载地址:http://ksio.baihongyu.com/

你可能感兴趣的文章
multi-angle cosine and sines
查看>>
Mysql Can't connect to MySQL server
查看>>
mysql case when 乱码_Mysql CASE WHEN 用法
查看>>
Multicast1
查看>>
MySQL Cluster 7.0.36 发布
查看>>
Multimodal Unsupervised Image-to-Image Translation多通道无监督图像翻译
查看>>
multipart/form-data与application/octet-stream的区别、application/x-www-form-urlencoded
查看>>
mysql cmake 报错,MySQL云服务器应用及cmake报错解决办法
查看>>
Multiple websites on single instance of IIS
查看>>
mysql CONCAT()函数拼接有NULL
查看>>
multiprocessing.Manager 嵌套共享对象不适用于队列
查看>>
multiprocessing.pool.map 和带有两个参数的函数
查看>>
MYSQL CONCAT函数
查看>>
multiprocessing.Pool:map_async 和 imap 有什么区别?
查看>>
MySQL Connector/Net 句柄泄露
查看>>
multiprocessor(中)
查看>>
mysql CPU使用率过高的一次处理经历
查看>>
Multisim中555定时器使用技巧
查看>>
MySQL CRUD 数据表基础操作实战
查看>>
multisim变压器反馈式_穿过隔离栅供电:认识隔离式直流/ 直流偏置电源
查看>>