Online JudgeProblem SetAuthorsOnline ContestsUser
Web Board
Home Page
F.A.Qs
Statistical Charts
Problems
Submit Problem
Online Status
Prob.ID:
Register
Update your info
Authors ranklist
Current Contest
Past Contests
Scheduled Contests
Award Contest
User ID:
Password:
  Register

经典动态规划题,好!

Posted by wangbaobao at 2009-05-01 19:53:43 on Problem 2533
由此题虽然知道用动态规划但有时找状态方程没有那么容易,这也是动态规划中的难点。
今天做了三道经典的动态规划,感觉对动态规划有了更深的理解,但对状态转化方程还、
不太熟,还要努力!!
#include"iostream"
using namespace std;
int num[1001];
int f[1001];
int longest=1;
int main()
{
	int n;
	int max;
	int i,j,k;
	cin>>n;
	
	for(i=0;i<n;i++)
		cin>>num[i];
	for(j=1;j<n;j++)
	{
		max=1;
		f[0]=1;
		for(k=0;k<j;k++)
		{
			if(num[k]<num[j])
				if(f[k]+1>max)
					max=f[k]+1;
		}
		f[j]=max;
		if(max>longest)
			longest=max;
	}
    cout<<longest<<endl;
	return 1;
}


		

Followed by:

Post your reply here:
User ID:
Password:
Title:

Content:

Home Page   Go Back  To top


All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator