PAT_A1085#Perfect Sequence
Source:
Description:
Given a sequence of positive integers and another positive integer p. The sequence is said to be a perfect sequence if M≤m×p where M and m are the maximum and minimum numbers in the sequence, respectively.
Now given a sequence and a parameter p, you are supposed to find from the sequence as many numbers as possible to form a perfect subsequence.
Input Specification:
Each input file contains one test case. For each case, the first line contains two positive integers N and p, where N (≤) is the number of integers in the sequence, and p (≤) is the parameter. In the second line there are N positive integers, each is no greater than 1.
Output Specification:
For each test case, print in one line the maximum number of integers that can be chosen to form a perfect subsequence.
Sample Input:
10 8
2 3 20 4 5 1 6 7 8 9
Sample Output:
8
Keys:
- 双指针
Code:
#include<cstdio>
#include<algorithm>
using namespace std;
const int M=1e5+;
typedef long long LL; int main()
{
#ifdef ONLINE_JUDGE
#else
freopen("Test.txt", "r", stdin);
#endif // ONLINE_JUDGE LL n,p,s[M];
scanf("%lld%lld", &n,&p);
for(LL i=; i<n; i++)
scanf("%lld", &s[i]);
sort(s,s+n);
LL i=,j=,step=;
while(j < n)
{
while(j<n && s[j]<=s[i]*p)
j++;
if(j-i > step)
step = j-i;
i++;
j=i+step;
}
printf("%lld", step); return ;
}
PAT_A1085#Perfect Sequence的更多相关文章
- 1085. Perfect Sequence (25) -二分查找
题目如下: Given a sequence of positive integers and another positive integer p. The sequence is said to ...
- A1085. Perfect Sequence
Given a sequence of positive integers and another positive integer p. The sequence is said to be a & ...
- 1085. Perfect Sequence
Given a sequence of positive integers and another positive integer p. The sequence is said to be a “ ...
- PAT 甲级 1085 Perfect Sequence
https://pintia.cn/problem-sets/994805342720868352/problems/994805381845336064 Given a sequence of po ...
- 1085 Perfect Sequence (25 分)
1085 Perfect Sequence (25 分) Given a sequence of positive integers and another positive integer p. T ...
- PAT 1085 Perfect Sequence
PAT 1085 Perfect Sequence 题目: Given a sequence of positive integers and another positive integer p. ...
- PAT 1085 Perfect Sequence[难]
1085 Perfect Sequence (25 分) Given a sequence of positive integers and another positive integer p. T ...
- pat1085. Perfect Sequence (25)
1085. Perfect Sequence (25) 时间限制 300 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CAO, Peng Give ...
- PAT Perfect Sequence (25)
题目描写叙述 Given a sequence of positive integers and another positive integer p. The sequence is said to ...
随机推荐
- kvm扩容home目录
KVM虚拟磁盘扩容 1.磁盘扩容分为raw和qcow2两种扩容方式,命令相同,区别是后缀名 [root@daixuan ~]# qemu-img info /data/daixuan1.qcow2 / ...
- Topcoder SRM652div2
开始接触Topcode..div2.. 250题目: Problem Statement You are given a String s consisting of lower to , ...
- linux查看进程数
命令行: $ ps -ef | wc -l 如果想匹配某个关键词的话,加上grep,下面命令是匹配关键词 “XXX”,并统计含有该关键词的进程数 $ ps -ef | grep XXX | wc -l
- elasticsearch 基础 —— Jion父子关系
前言 由于ES6.X版本以后,每个索引下面只支持单一的类型(type),因此不再支持以下形式的父子关系: PUT /company { "mappings": { "br ...
- 关于Jenkins的网站及其他学习的网站
配置efk https://www.cnblogs.com/fzxiaomange/p/efk-getstart.html https://blog.csdn.net/wangmuming/artic ...
- 没有dockerfile的情况下如何查看docker的镜像信息
前言 参考资料 https://baijiahao.baidu.com/s?id=1564406878758073&wfr=spider&for=pc 很实用的功能哈.. 步骤 1.先 ...
- 在IDEA中如何将Spring boot项目打包成可执行的jar包并发布到linux服务
这两年微服务很流行,这里简单介绍一下如何将自己使用idea写的微服务打包成一个可执行的jar包,并发布到linux服务器的步骤.因为spring boot有内置的tomcat所以一般使用内置的tomc ...
- Center OS 7
1:关闭防火墙 systemctl stop iptables.service 2:禁止开启启动 systemctl disable firewalld.service 3:查看防火墙 firewal ...
- python基础:5.请编写一个函数实现将IP地址转换成一个整数。
如 10.3.9.12 转换规则为: 10 00001010 3 00000011 9 ...
- grep正则表达式(一)
新建一批 txt 文件: [me@linuxbox ~]$ ls /bin > dirlist-bin.txt [me@linuxbox ~]$ ls /usr/bin > dirlist ...