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
2010 ACM-ICPC Multi-University Training Contest(15)——Host by NUDT
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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\n",getsum(x1,y1,z1)&1); } } } return 0; }