CodeForces 620C Pearls in a Row
水题,每当出现重复就分割开来,最后留下的尾巴给最后一段
#include<cstdio>
#include<cstring>
#include<cmath>
#include<stack>
#include<vector>
#include<map>
#include<string>
#include<iostream>
#include<algorithm>
using namespace std; const int maxn=*+;
map<int,int>m;
int n;
int a[maxn];
struct X
{
int l,r;
};
vector<X>ans; int main()
{
scanf("%d",&n);
for(int i=;i<=n;i++) scanf("%d",&a[i]);
m.clear();
int FinalRight=-;
int left=,right=;
for(int i=;i<=n;i++)
{
if(m[a[i]]==)
{
m.clear();
FinalRight=i;
X seg;
seg.l=left;
seg.r=i;
ans.push_back(seg);
left=i+;
}
else
{
m[a[i]]=;
right=i;
}
}
if(ans.size()==) printf("-1\n");
else
{
ans[ans.size()-].r=n;
printf("%d\n",ans.size());
for(int i=;i<ans.size();i++)
printf("%d %d\n",ans[i].l,ans[i].r);
}
return ;
}
CodeForces 620C Pearls in a Row的更多相关文章
- CodeForces - 620C Pearls in a Row 贪心 STL
C. Pearls in a Row time limit per test 2 seconds memory limit per test 256 megabytes input standard ...
- codeforces C. Pearls in a Row map的应用
C. Pearls in a Row time limit per test 2 seconds memory limit per test 256 megabytes input standard ...
- cf 620C Pearls in a Row(贪心)
d.有一串数字,要把这些数字分成若干连续的段,每段必须至少包含2个相同的数字,怎么分才能分的段数最多? 比如 是1 2 1 3 1 2 1 那么 答案是 21 34 7 即最多分在2段,第一段是1~3 ...
- Codeforces 620C EDU C.Pearls in a Row ( set + greed )
C. Pearls in a Row There are n pearls in a row. Let's enumerate them with integers from 1 to n from ...
- 【32.26%】【codeforces 620C】Pearls in a Row
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard o ...
- Educational Codeforces Round 6 C. Pearls in a Row
Educational Codeforces Round 6 C. Pearls in a Row 题意:一个3e5范围的序列:要你分成最多数量的子序列,其中子序列必须是只有两个数相同, 其余的数只能 ...
- Educational Codeforces Round 6 C. Pearls in a Row set
C. Pearls in a Row There are n pearls in a row. Let's enumerate them with integers from 1 to n from ...
- C. Pearls in a Row
C. Pearls in a Row time limit per test 2 seconds memory limit per test 256 megabytes input standard ...
- CF620C Pearls in a Row
CF620C Pearls in a Row 洛谷评测传送门 题目描述 There are nn pearls in a row. Let's enumerate them with integers ...
随机推荐
- avd
http://stackoverflow.com/questions/2662650/making-the-android-emulator-run-faster http://www.cnblogs ...
- load
http://blog.scoutapp.com/articles/2009/07/31/understanding-load-averages http://blog.scoutapp.com/ar ...
- struts2获取请求参数的三种方式及传递给JSP参数的方式
接上一篇文章 package test; import com.opensymphony.xwork2.ActionSupport; import javax.servlet.http.*; impo ...
- 用sql server的sql语句算一个empty GUID
在C#中得到一个empty GUID的方法是: Guid id= Guid.Empty; 那么在SQL Server Management Studio中怎样得到一个empty GUID呢? 方法有两 ...
- Win32串口API
在工业控制中,工控机(一般都基于Windows平台)经常需要与智能仪表通过串口进行通信.串口通信方便易行,应用广泛. 一般情况下,工控机和各智能仪表通过RS485总线进行通信.RS485的通信方式是半 ...
- linux(视频学习)2
第二部分(javaee的开发环境的搭建): 1. 安装jdk的过程: 安装ios的镜像文件,挂载到/mnt目录下.挂载: mount /mnt/cdrom卸载: umount /mnt/cdrom ...
- panel 绑定鼠标滚轮事件
void formsample_mousewheel(object sender, MouseEventArgs e) { //获取光标位置 Point mousepoint = new Point( ...
- HDU 3966 Aragorn's Story 动态树 树链剖分
Aragorn's Story Time Limit: 10000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) ...
- JS的数据类型转换
JS 数据类型转换 方法主要有三种 转换函数.强制类型转换.利用js变量弱类型转换. 1. 转换函数: js提供了parseInt()和parseFloat()两个转换函数.前者把值转换成整数,后者把 ...
- Ng-model undefined in the controller
这个问题是我最近在项目中碰到的,暂时没找到原因,找到一个解决方法,还多请大神指教,在Stack Overflow找到解决方法: I am having some "problems" ...