Codeforces Round #321 (Div. 2) A. Kefa and First Steps 水题
A. Kefa and First Steps
Time Limit: 1 Sec
Memory Limit: 256 MB
题目连接
http://codeforces.com/contest/580/problem/A
Description
Kefa decided to make some money doing business on the Internet for exactly n days. He knows that on the i-th day (1 ≤ i ≤ n) he makesai money. Kefa loves progress, that's why he wants to know the length of the maximum non-decreasing subsegment in sequence ai. Let us remind you that the subsegment of the sequence is its continuous fragment. A subsegment of numbers is called non-decreasing if all numbers in it follow in the non-decreasing order.
Help Kefa cope with this task!
Input
The first line contains integer n (1 ≤ n ≤ 105).
The second line contains n integers a1, a2, ..., an (1 ≤ ai ≤ 109).
Output
Print a single integer — the length of the maximum non-decreasing subsegment of sequence a.
Sample Input
6
2 2 1 3 4 1
Sample Output
3
HINT
题意
求最长非降子序列
题解:
暴力扫一遍就好了……
@)1%KBO0HM418$J94$1R.jpg)
代码:
//qscqesze
#pragma comment(linker, "/STACK:1024000000,1024000000")
#include <cstdio>
#include <cmath>
#include <cstring>
#include <ctime>
#include <iostream>
#include <algorithm>
#include <set>
#include <bitset>
#include <vector>
#include <sstream>
#include <queue>
#include <typeinfo>
#include <fstream>
#include <map>
#include <stack>
typedef long long ll;
using namespace std;
//freopen("D.in","r",stdin);
//freopen("D.out","w",stdout);
#define sspeed ios_base::ssecondnc_with_stdio(0);cin.tie(0)
#define maxn 100006
#define mod 1000000007
#define eps 1e-9
#define PI acos(-1)
const double EP = 1E- ;
int Num;
//const int inf=0first7fffffff;
const ll inf=;
inline ll read()
{
ll x=,f=;char ch=getchar();
while(ch<''||ch>''){if(ch=='-')f=-;ch=getchar();}
while(ch>=''&&ch<=''){x=x*+ch-'';ch=getchar();}
return x*f;
}
//************************************************************************************* int a[maxn];
int ans = ;
int Ans = ;
int main()
{
int n=read();
for(int i=;i<n;i++)
{
a[i]=read();
}
for(int i=;i<n;i++)
{
if(a[i]>=a[i-])
{
ans++;
Ans=max(Ans,ans);
}
else
ans=;
}
printf("%d\n",Ans+);
}
Codeforces Round #321 (Div. 2) A. Kefa and First Steps 水题的更多相关文章
- Codeforces Round #321 (Div. 2) A. Kefa and First Steps【暴力/dp/最长不递减子序列】
A. Kefa and First Steps time limit per test 2 seconds memory limit per test 256 megabytes input stan ...
- Codeforces Round #321 (Div. 2)-A. Kefa and First Steps,暴力水过~~
A. Kefa and First Steps time limit per test 2 seconds memory limit per test 256 megabytes input stan ...
- codeforces水题100道 第十四题 Codeforces Round #321 (Div. 2) A. Kefa and First Steps (brute force)
题目链接:http://www.codeforces.com/problemset/problem/580/A题意:求最长连续非降子序列的长度.C++代码: #include <iostream ...
- Codeforces Round #368 (Div. 2) A. Brain's Photos (水题)
Brain's Photos 题目链接: http://codeforces.com/contest/707/problem/A Description Small, but very brave, ...
- Codeforces Round #373 (Div. 2) C. Efim and Strange Grade 水题
C. Efim and Strange Grade 题目连接: http://codeforces.com/contest/719/problem/C Description Efim just re ...
- Codeforces Round #185 (Div. 2) A. Whose sentence is it? 水题
A. Whose sentence is it? Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/ ...
- Codeforces Round #373 (Div. 2) A. Vitya in the Countryside 水题
A. Vitya in the Countryside 题目连接: http://codeforces.com/contest/719/problem/A Description Every summ ...
- Codeforces Round #371 (Div. 2) A. Meeting of Old Friends 水题
A. Meeting of Old Friends 题目连接: http://codeforces.com/contest/714/problem/A Description Today an out ...
- Codeforces Round #355 (Div. 2) B. Vanya and Food Processor 水题
B. Vanya and Food Processor 题目连接: http://www.codeforces.com/contest/677/problem/B Description Vanya ...
随机推荐
- bzoj4028
一眼分块题…… 分块,维护每个块的总的gcd和xor和 先思考我们应该怎么查询,考虑到gcd是一个神奇的东西,因为它最多变化logX次 于是我们从前往后扫描每个块,如果一个块内总的gcd是当前扫描的前 ...
- session问题
如果 <sessionState mode="StateServer" stateConnectionString="tcpip=127.0.0.1:42424&q ...
- Js计算-当月每周有多少天
查看Demo: 源代码如下: <script> //计算当月总天数 function getCountDays() { var curDate = new Date(); /* 获取当前月 ...
- SharePoint 2010 master page 控件介绍(1)
转:http://blog.csdn.net/lgm97/article/details/6409204 以下所有的内容都是根据Randy Drisgill (MVP SharePoint Serve ...
- gdi写的2048
//-------------------------------------------[头文件及引用]----------------------------------------------- ...
- Javascript 知识点简介
如何在HTML中引入JS? 所有重定向的HTML标签内都可以嵌入javascript代码. 浮点数不要用 == 来进行判断 var num=0; for(var i=0;i<10;i++) ...
- [转]VPN服务器配置详解
借助VPN,企业外出人员可随时连到企业的VPN服务器,进而连接到企业内部网络.借助windows2003的“路由和远程访问”服务,可以实现基于软件的VPN. VPN(Virtual Private N ...
- mac远程连接 win8
首先 打开组策略 .windows8 下 按win+R 可以唤出运行,输入[gpedit.msc]按下 回车键 选择[计算机配置]>[管理模板]>[Windows组件]>[远程桌面服 ...
- STM32学习笔记——FSMC 驱动大容量NAND FLASH [复制链接]
本文原创于观海听涛,原作者版权所有,转载请注明出处. 近几天开发项目需要用到STM32驱动NAND FLASH,但由于开发板例程以及固件库是用于小页(512B),我要用到的FLASH为1G bit的大 ...
- 给定金额m和红包数量n
这一题如果是采用暴力手段,不一定能获得正确答案,而且也非常耗时. 所以下面我们采用一个小技巧,也就是先产生n-1个红包,总得sum<m的,这样最后只要添加一个sum-m的红包钱数就可以了. 具体 ...