【POJ】2796 Feel Good 
 1 #include<cstdio>
 2 #define MAXN 100010
 3 typedef __int64 LL;
 4 struct node
 5 {
 6     LL w,h;
 7     int x,y;
 8 };
 9 node st[MAXN];
10 int main()
11 {
12     node temp;
13     LL ans,wide;
14     int n,i,top,x,y,R;
15     while(~scanf("%d",&n))
16     {
17         ans=top=-1;
18         for(i=0;i<n;i++)
19         {
20             scanf("%I64d",&temp.h);
21             temp.w=temp.h;
22             temp.x=temp.y=i;
23             if(top>-1)
24                 R=st[top].y;
25             for(wide=0;top>-1&&st[top].h>=temp.h;top--)
26             {
27                 wide+=st[top].w;
28                 if(wide*st[top].h>ans)
29                 {
30                     ans=wide*st[top].h;
31                     x=st[top].x;
32                     y=R;
33                 }
34             }
35             if(wide)
36             {
37                 temp.w+=wide;
38                 temp.x=st[top+1].x;
39             }
40             st[++top]=temp;
41         }
42         if(top>-1)
43         {
44             R=st[top].y;
45             for(wide=0;top>-1;top--)
46             {
47                 wide+=st[top].w;
48                 if(wide*st[top].h>ans)
49                 {
50                     ans=wide*st[top].h;
51                     x=st[top].x;
52                     y=R;
53                 }
54             }
55         }
56         printf("%I64d\n%d %d\n",ans,x+1,y+1);
57     }
58     return 0;
59 }
posted on 2012-07-19 20:18  DrunBee  阅读(218)  评论(0)  编辑  收藏  举报