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  • bzoj3290 Theresa与数据结构

    题目大意:

    需要维护一个数据结构,支持

    1.插入点((x, y, z))

    2.查询立方体((x, y, z))((x + r, y + r, z + r))中有多少个点

    3.删除点((x, y, z))


    反正就是四维偏序,怎么开心怎么来

    然后我明白了一件事

    树套树的空间根本无法接受

    以下代码在(bzoj)(CE), 然而即使不(CE)也会(RE)

    大家看看就好......QAQ

    #include <cstdio>
    #include <cstring>
    #include <iostream>
    #include <algorithm>
    using namespace std;
    
    #define ri register int
    #define rep(io, st, ed)  for(ri io = st; io <= ed; io ++)
    #define drep(io, ed, st) for(ri io = ed; io >= st; io --)
    
    #define gc getchar
    inline int read() {
    	int p = 0, w = 1; char c = gc();
    	while(c > '9' || c < '0') { if(c == '-') w = -1; c = gc(); }
    	while(c >= '0' && c <= '9') p = p * 10 + c - '0', c = gc();
    	return p * w;
    }
    
    const int sid = 500050;
    const int eid = 3e7 + 5;
    
    int n, q, qx, qy, qz, to;
    int A[sid], X[sid], Y[sid], Z[sid], R[sid], Q[sid];
    int Tx[sid], Ty[sid], Tz[sid];
    
    int id;
    int rt[sid], yrt[eid], ls[eid], rs[eid], sum[eid];
    
    inline void mdf(int &o, int l, int r, int z, int c) {
    	if(!o) o = ++ id;
    	sum[o] += c;
    	if(l == r) return;
    	int mid = (l + r) >> 1;
    	if(z <= mid) mdf(ls[o], l, mid, z, c);
    	else mdf(rs[o], mid + 1, r, z, c);
    }
    
    inline void mdf(int &o, int l, int r, int y, int z, int c) {
    	if(!o) o = ++ id;
    	mdf(yrt[o], 1, qz, z, c);
    	if(l == r) return;
    	int mid = (l + r) >> 1;
    	if(y <= mid) mdf(ls[o], l, mid, y, z, c);
    	else mdf(rs[o], mid + 1, r, y, z, c);
    }
    
    inline int qry(int o, int l, int r, int zl, int zr) {
    	if(zl > r || zr < l || !o) return 0;
    	if(zl <= l && zr >= r) return sum[o];
    	int mid = (l + r) >> 1;
    	return qry(ls[o], l, mid, zl, zr) + qry(rs[o], mid + 1, r, zl, zr);
    }
    
    inline int qry(int o, int l, int r, int yl, int yr, int zl, int zr) {
    	if(yl > r || yr < l || !o) return 0;
    	if(yl <= l && yr >= r) return qry(yrt[o], 1, qz, zl, zr);
    	int mid = (l + r) >> 1;
    	return qry(ls[o], l, mid, yl, yr, zl, zr) + qry(rs[o], mid + 1, r, yl, yr, zl, zr);
    }
    
    inline void ins(int x, int y, int z, int opt) {
    	for(ri i = x; i <= qx; i += i & (-i))
    		mdf(rt[i], 1, qy, y, z, opt);
    }
    
    inline int ask(int x, int yl, int yr, int zl, int zr) {
    	int ret = 0;
    	for(ri i = x; i; i -= i & (-i))
    		ret += qry(rt[i], 1, qy, yl, yr, zl, zr);
    	return ret;
    }
    
    int main() {
    	freopen("3290.in", "r", stdin);
    	freopen("3290.out", "w", stdout);
    	n = read();
    	rep(i, 1, n) {
    		X[i] = read(); Y[i] = read(); Z[i] = read();
    		Tx[++ qx] = X[i]; Ty[++ qy] = Y[i]; Tz[++ qz] = Z[i];
    	}
    	q = read();
    	static char s[50];
    	rep(i, n + 1, n + q) {
    		scanf("%s", s + 1);
    		if(s[1] == 'A') {
    			A[i] = 1; Q[++ to] = i;
    			X[i] = read(); Y[i] = read(); Z[i] = read(); 
    			Tx[++ qx] = X[i]; Ty[++ qy] = Y[i]; Tz[++ qz] = Z[i];
    		}
    		else if(s[1] == 'Q') {
    			A[i] = 2;
    			X[i] = read(); Y[i] = read(); 
    			Z[i] = read(); R[i] = read();
    			Tx[++ qx] = X[i]; Tx[++ qx] = X[i] + R[i];
    			Ty[++ qy] = Y[i]; Ty[++ qy] = Y[i] + R[i];
    			Tz[++ qz] = Z[i]; Tz[++ qz] = Z[i] + R[i];
    		}
    		else A[i] = 3 + Q[to --];
    	}
    	sort(Tx + 1, Tx + qx + 1);
    	sort(Ty + 1, Ty + qy + 1);
    	sort(Tz + 1, Tz + qz + 1);
    	qx = unique(Tx + 1, Tx + qx + 1) - Tx - 1;
    	qy = unique(Ty + 1, Ty + qy + 1) - Ty - 1;
    	qz = unique(Tz + 1, Tz + qz + 1) - Tz - 1;
    	rep(i, 1, n) {
    		X[i] = lower_bound(Tx + 1, Tx + qx + 1, X[i]) - Tx;
    		Y[i] = lower_bound(Ty + 1, Ty + qy + 1, Y[i]) - Ty;
    		Z[i] = lower_bound(Tz + 1, Tz + qz + 1, Z[i]) - Tz;
    		ins(X[i], Y[i], Z[i], 1);
    	}
    	rep(i, n + 1, n + q) {
    		if(A[i] == 2) {
    			int Lx = lower_bound(Tx + 1, Tx + qx + 1, X[i]) - Tx;
    			int Rx = lower_bound(Tx + 1, Tx + qx + 1, X[i] + R[i]) - Tx;
    			int Ly = lower_bound(Ty + 1, Ty + qy + 1, Y[i]) - Ty;
    			int Ry = lower_bound(Ty + 1, Ty + qy + 1, Y[i] + R[i]) - Ty;
    			int Lz = lower_bound(Tz + 1, Tz + qz + 1, Z[i]) - Tz;
    			int Rz = lower_bound(Tz + 1, Tz + qz + 1, Z[i] + R[i]) - Tz;
    			printf("%d
    ", ask(Rx, Ly, Ry, Lz, Rz) - ask(Lx - 1, Ly, Ry, Lz, Rz));
    		}
    		else if(A[i] == 1) {
    			X[i] = lower_bound(Tx + 1, Tx + qx + 1, X[i]) - Tx;
    			Y[i] = lower_bound(Ty + 1, Ty + qy + 1, Y[i]) - Ty;
    			Z[i] = lower_bound(Tz + 1, Tz + qz + 1, Z[i]) - Tz;
    			ins(X[i], Y[i], Z[i], 1);
    		}
    		else {
    			int p = A[i] - 3;
    			ins(X[p], Y[p], Z[p], -1);
    		}
    	}
    	return 0;
    }
    
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  • 原文地址:https://www.cnblogs.com/reverymoon/p/10099382.html
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