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Re:那位大侠帮我看看这段程序有什么错!老是WAIn Reply To:那位大侠帮我看看这段程序有什么错!老是WA Posted by:gaojinjun at 2006-07-05 10:57:39 对数据:
2
3
-1 2 3
3
-1 2 3
你的输出的两个结果不相同:
5
6
还有多了一句:printf("\n");
> #include <stdio.h>
> #include <stdlib.h>
> long b[50000]={0};
> long c[50000]={0};
> int a[50000]={0};
> int MaxSum(int m,int n)
> {
> int i,j;
> long max,sum=-500000000;
> if(n<m||m<1)return 0;
> for(i=1;i<=m;i++)
> {
> b[i]=b[i-1]+a[i];
> c[i-1]=b[i];
> max =b[i];
> for(j=i+1;j<=i+n-m;j++)
> {
> b[j]=b[j-1]>c[j-1]?b[j-1]+a[j]:c[j-1]+a[j];
> c[j-1]=max;
> if(max<b[j])max=b[j];
> }
> c[i+n-m]=max;
> }
> for(j=m;j<=n;j++)
> if(sum<b[j])sum=b[j];
> return sum;
> }
> int main(int argc, char *argv[])
> {
> int i,j,k;
> int n,m;
> long sum[30]={0};
> scanf("%d",&n);
> for(i=0;i<n;i++)
> {
> scanf("%d",&m);
> for(j=1;j<=m;j++)
> scanf("%d",&a[j]);
> printf("\n");
> sum[i]=MaxSum(2,m);
> }
> for(i=0;i<n;i++)
> printf("%ld\n",sum[i]);
> system("PAUSE");
> return 0;
> }
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