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Re:WrongAnswner!!!!!为什么啊???测试数据没错啊!实在找不出!哪位大虾指教下!!!!

Posted by climber at 2009-07-26 16:24:39 on Problem 2479
In Reply To:WrongAnswner!!!!!为什么啊???测试数据没错啊!实在找不出!哪位大虾指教下!!!! Posted by:gaoxingok99 at 2009-07-26 14:59:14
> #include<stdio.h>
> #include<string.h>
> 
> int num[50000],n;
> int a[50000],b[50000];
> void maxa(){
> 	int max=num[1];
> 	int sum=num[1];
> 	int lt;
> 	a[1]=max;
> 	
> 	for(lt=2;lt<=n;lt++){
> 		if(sum>0) sum+=num[lt];
> 		else sum=num[lt];
> 		if(sum>max) max=sum;
> 		a[lt]=max;
> 	}
> }
> 
> void maxb(){
> 	int max=num[n];
> 	int sum=num[n];
> 	int lt;
> 	b[n]=max;
> 	for(lt=n-1;lt>=1;lt--){
> 		if(sum>0) sum+=num[lt];
> 		else sum=num[lt];
> 		if(sum>max) max=sum;
> 		b[lt]=max;
> 	}
> }
> 
> void main()
> {
> 	int t,i,j,maxall;
> 	scanf("%d",&t);
> 
> 	for(j=0;j<t;j++)
> 	{
> 		scanf("%d",&n);
> 		for(i=1;i<=n;i++) scanf("%d",&num[i]);
> 		maxa();
> 		maxb();
>         maxall=-600000000;
> 	   
> 		for( i=1;i<=n-1;i++)
> 		{
> 			if((a[i]+b[i+1])>maxall) maxall=a[i]+b[i+1];
> 		}
> 	
> 		printf("%d\n",maxall);
> 	}
> }

数组开小了

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