TYVJ 1476 三维树状数组

裸题~

注意三维的前缀体积怎么算就好

 

View Code 
 1 #include <cstdio>
 2 #include <cstring>
 3 #include <cstdlib>
 4 
 5 #define N 120
 6 
 7 using namespace std;
 8 
 9 int n,c[N][N][N];
10 
11 inline int lowbit(int x)
12 {
13     return x&-x;
14 }
15 
16 void updata(int x,int y,int z,int dt)
17 {
18     while(x<=n)
19     {
20         int y1=y;
21         while(y1<=n)
22         {
23             int z1=z;
24             while(z1<=n)
25             {
26                 c[x][y1][z1]+=dt;
27                 z1+=lowbit(z1);
28             }
29             y1+=lowbit(y1);
30         }
31         x+=lowbit(x);
32     }
33 }
34 
35 int getsum(int x,int y,int z)
36 {
37     int rt=0;
38     while(x)
39     {
40         int y1=y;
41         while(y1)
42         {
43             int z1=z;
44             while(z1)
45             {
46                 rt+=c[x][y1][z1];
47                 z1-=lowbit(z1);
48             }
49             y1-=lowbit(y1);
50         }
51         x-=lowbit(x);
52     }
53     return rt;
54 }
55 
56 void read()
57 {
58     scanf("%d",&n);
59     int pd,x,y,z,x1,y1,z1,p,s;
60     while(scanf("%d",&pd))
61     {
62         if(pd==3) break;
63         if(pd==1)
64         {
65             scanf("%d%d%d%d",&x,&y,&z,&p);
66             x++; y++; z++;
67             updata(x,y,z,p);
68         }
69         else
70         {
71             scanf("%d%d%d%d%d%d",&x1,&y1,&z1,&x,&y,&z);
72             x++; y++; z++;
73             s=getsum(x,y,z)-getsum(x,y,z1)-getsum(x,y1,z)-getsum(x1,y,z);
74             s=s+getsum(x1,y1,z)+getsum(x1,y,z1)+getsum(x,y1,z1);
75             s=s-getsum(x1,y1,z1);
76             printf("%d\n",s);
77         }
78     }
79 }
80 
81 int main()
82 {
83     read();
84     return 0;
85 }
posted @ 2012-10-07 09:18  proverbs  阅读(274)  评论(0)  编辑  收藏  举报