TYVJ 1476 三维树状数组

裸题~

注意三维的前缀体积怎么算就好

 

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 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 }