学步园

参考：http://www.cnblogs.com/nuoyan2010/archive/2012/10/17/2728289.html

#include<iostream>
#include<cstdio>
using namespace std;

const int N = 505;
int num1[N],num2[N],f[N][N];
int main()
{
	int t,n,m;
	scanf("%d",&t);
	while(t--)
	{
		scanf("%d",&n);
		for(int i=1;i<=n;i++)scanf("%d",&num1[i]);
		scanf("%d",&m);
		for(int j=1;j<=m;j++)scanf("%d",&num2[j]);
		memset(f,0,sizeof(f));
		int answer=0;
		int ma;
		for(int i=1;i<=n;i++)
		{
			ma=0;
			for(int j=1;j<=m;j++)
			{
				f[i][j]=f[i-1][j];
				if(num1[i]>num2[j]&&f[i-1][j]>ma)ma=f[i-1][j];
				if(num1[i]==num2[j])f[i][j]=ma+1;
			}
		}
		for(int j=0;j<=m;j++)answer=max(answer,f[n][j]);
		printf("%d\n",answer);
		if(t!=0)printf("\n");
	}
	return 0;    
}