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HDU 3584 Cube （三维树状数组）

2024-07-19 01:10:29   219人阅读

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
 

三维树状数组。。加一个for循环就ok


#include <iostream>
#include <cstring>
#include <cstdio>
//#include <cmath>
#include <set>
#include <stack>
#include <cctype>
#include <algorithm>
#define lson o<<1, l, m
#define rson o<<1|1, m+1, r
using namespace std;
typedef long long LL;
const int mod = 99999997;
const int MAX = 1000000000;
const int maxn = 1005;
int n, q, x1, y1, z1, x2, y2, z2, op;
int c[101][101][101];
void add(int x, int y, int z) {
    for(int i = x; i <= n; i += i&-i)
        for(int j = y; j <= n; j += j&-j)
            for(int k = z; k <= n; k += k&-k)
                c[i][j][k]++;
}
int query(int x, int y, int z) {
    int sum = 0;
    for(int i = x; i > 0; i -= i&-i)
        for(int j = y; j > 0; j -= j&-j)
            for(int k = z; k > 0; k -= k&-k)
                sum += c[i][j][k];
    return sum;
}
int main()
{
    //freopen("in.txt", "r", stdin);
    while(cin >> n >> q) {
        memset(c, 0, sizeof(c));
        while(q--) {
            scanf("%d%d%d%d", &op, &x1, &y1, &z1);
            if(op) {
                scanf("%d%d%d", &x2, &y2, &z2);
                x2++, y2++, z2++;
                add(x1, y1, z1);
                add(x1, y1, z2);
                add(x1, y2, z1);
                add(x2, y1, z1);
                add(x1, y2, z2);
                add(x2, y1, z2);
                add(x2, y2, z1);
                add(x2, y2, z2);
            } else printf("%d\n", query(x1, y1, z1) & 1);
        }
    }
    return 0;
}




HDU 3584 Cube （三维树状数组）


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