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  • HDU 3584 Cube(三位树状数组)

    Cube

    Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others)
    Total Submission(s): 1949    Accepted Submission(s): 1013


    Problem Description
    Given an N*N*N cube A, whose elements are either 0 or 1. A[i, j, k] means the number in the i-th row , j-th column and k-th layer. Initially we have A[i, j, k] = 0 (1 <= i, j, k <= N).
    We define two operations, 1: “Not” operation that we change the A[i, j, k]=!A[i, j, k]. that means we change A[i, j, k] from 0->1,or 1->0. (x1<=i<=x2,y1<=j<=y2,z1<=k<=z2).
    0: “Query” operation we want to get the value of A[i, j, k].
     
    Input
    Multi-cases.
    First line contains N and M, M lines follow indicating the operation below.
    Each operation contains an X, the type of operation. 1: “Not” operation and 0: “Query” operation.
    If X is 1, following x1, y1, z1, x2, y2, z2.
    If X is 0, following x, y, z.
     
    Output
    For each query output A[x, y, z] in one line. (1<=n<=100 sum of m <=10000)
     
    Sample Input
    2 5 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 2 2 2 0 1 1 1 0 2 2 2
     
    Sample Output
    1 0 1
     
    Author
    alpc32
     
    Source
     
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    /*
    题意实在太模糊了,两种操作0:单点查询,这个点的数字是多少
    1:将某一区间内的数字都反转;
    只需要维护反转次数的前缀和就行了
    
    编译器出毛病了,宏定义不行,调用函数也不行
    */
    
    #include<iostream>
    #include<stdio.h>
    #include<string.h>
    #define N 110
    //#define lowbit(x) x&(-x)
    using namespace std;
    int n,m;
    int c[N][N][N];
    int lowbit(int x)
    {
        return x&(-x);
    }
    void update(int x,int y,int z,int val)
    {
        while(x<=n)
        {
            int j=y;
            while(j<=n)
            {
                int k=z;
                while(k<=n)
                {
                    c[x][j][k]+=val;
                    k+=lowbit(k);
                }
                j+=lowbit(j);
            }
            x+=lowbit(x);
        }
    }
    int getsum(int x,int y,int z)
    {
        int s=0;
        while(x>0)
        {
            int j=y;
            while(j>0)
            {
                int k=z;
                while(k>0)
                {
                    s+=c[x][j][k];
                    k-=lowbit(k);
                }
                j-=lowbit(j);
            }
            x-=lowbit(x);
        }
        return s;
    }
    int main()
    {
        //freopen("C:\Users\acer\Desktop\in.txt","r",stdin);
        while(scanf("%d%d",&n,&m)!=EOF)
        {
            memset(c,0,sizeof c);
            int op,x1,y1,z1,x2,y2,z2;
            while(m--)
            {
                scanf("%d",&op);
                if(op)
                {
                    scanf("%d%d%d%d%d%d",&x1,&y1,&z1,&x2,&y2,&z2);
                    update(x2+1, y2+1, z2+1, 1);
                    update(x1, y2+1, z2+1, 1);
                    update(x2+1, y1, z2+1, 1);
                    update(x2+1, y2+1, z1, 1);
                    update(x1, y1, z2+1, 1);
                    update(x2+1, y1, z1, 1);
                    update(x1, y2+1, z1, 1);
                    update(x1, y1, z1, 1);
                }
                else
                {
                    scanf("%d%d%d",&x1,&y1,&z1);
                    //cout<<"getsum(x1,y1,z1)="<<getsum(x1,y1,z1)<<endl;
                    printf("%d
    ",getsum(x1,y1,z1)&1);
                }
            }
        }
        return 0;
    }
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  • 原文地址:https://www.cnblogs.com/wuwangchuxin0924/p/5895052.html
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