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感觉很清晰了,可是为什么一直wa?帮忙看看

Posted by yxysdcl at 2008-03-05 08:32:59 on Problem 1952
#include <stdio.h>
#include <memory.h>
#define MAX 5010
int price[MAX],dp[MAX];
int count[MAX];
bool on[65536];

	
void DPLIS(int n)
{
	int i,j,max=0;
	__int64 sum;
	for(i=1;i<n;i++)
	{
		for(j=i-1;j>=0;j--)
		{
			if(price[i]<price[j]&&dp[i]<dp[j]+1)
				dp[i]=dp[j]+1;
			if(max<dp[i])max=dp[i];
		}
	}
	for(i=0;i<n;i++)
	{
		if(dp[i]==1)
			count[i]=1;
		else{
			memset(on,false,sizeof(on));
			for(j=i-1;j>=0;j--)
			{
				if((dp[i]==dp[j]+1)&&on[price[j]]==false&&price[i]<price[j])
				{
					count[i]+=count[j];
					on[price[j]]=true;
				}
			}
		}
	}
	memset(on,false,sizeof(on));
	sum=0;
	for(i=n-1;i>=0;i--)
	{
		if(dp[i]==max&&on[price[i]]==false)
		{
			sum+=count[i];
			on[price[i]]=true;
		}
	}
	printf("%d %d\n",max,sum);
}

int main()
{
	int i,n;
	//freopen("in.txt","r",stdin);
	scanf("%d",&n);
	for(i=0;i<n;i++)
	{
		scanf("%d",&price[i]);
		count[i]=0;
		dp[i]=1;
	}
	DPLIS(n);
}
		

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