hdu3584三维树状数组
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Cube
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 2405 Accepted Submission(s): 1226
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].
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.
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 51 1 1 1 1 1 10 1 1 11 1 1 1 2 2 20 1 1 10 2 2 2
Sample Output
101
二维跟三维相似
直接上代码了
#include<iostream>#include<string.h>#include<stdio.h>using namespace std;int c[101][101][101];int n,m;int X;int x1,y1,z1,x2,y2,z2;int x,y,z;int lowbit(int x){ return x&(-x);}void update(int x,int y,int z,int w){ for(int i=x;i<=100;i=i+lowbit(i)) for(int j=y;j<=100;j=j+lowbit(j)) for(int k=z;k<=100;k=k+lowbit(k)) c[i][j][k]=c[i][j][k]+w;}int sum(int x,int y,int z){ int ans=0; for(int i=x;i>0;i=i-lowbit(i)) for(int j=y;j>0;j=j-lowbit(j)) for(int k=z;k>0;k=k-lowbit(k)) ans=ans+c[i][j][k]; return ans;}int main(){ while(~scanf("%d%d",&n,&m)) { memset(c,0,sizeof(c)); while(m--) { scanf("%d",&X); if(X==1) { scanf("%d%d%d%d%d%d",&x1,&y1,&z1,&x2,&y2,&z2); update(x1,y1,z1,1); update(x2+1,y1,z1,-1); update(x1,y2+1,z1,-1); update(x1,y1,z2+1,-1); update(x2+1,y2+1,z1,1); update(x1,y2+1,z2+1,1); update(x2+1,y1,z2+1,1); update(x2+1,y2+1,z2+1,-1); } else { scanf("%d%d%d",&x1,&y1,&z1); printf("%d\n",sum(x1,y1,z1)%2); } } } return 0;}
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