oj.uz

Submission #103214

# Submission time Handle Problem Language Result Execution time Memory
103214 2019-03-29T08:43:34 Z E869120 Circle selection (APIO18_circle_selection) C++14
30 / 100
 3000 ms 1037316 KB 
#include <iostream>
#include <vector>
#include <queue>
#include <ctime>
using namespace std;
#pragma warning (disable: 4996)

int cntv = 0;

struct Node {
	int val, l, r; vector<int> num;
};

vector<Node>vec;

class SegmentTree {
public:
	Node BASE; vector<int>V; long long lx, ly, rx, ry; int size_;

	void init() {
		BASE.l = -1; BASE.r = -1; BASE.val = 0;
		vec[0] = BASE; size_ = 1;
	}
	void add(long long px, long long py, int NN) {
		int cx = 0;
		for (int i = 61; i >= 0; i--) {
			vec[cx].val += 1;
			if ((i & 1) == 1) {
				int dep = (i >> 1);
				if (px >= (1LL << dep)) {
					if (vec[cx].r == -1) { vec[cx].r = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].r; px -= (1LL << dep);
				}
				else {
					if (vec[cx].l == -1) { vec[cx].l = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].l;
				}
			}
			else {
				int dep = (i >> 1);
				if (py >= (1LL << dep)) {
					if (vec[cx].r == -1) { vec[cx].r = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].r; py -= (1LL << dep);
				}
				else {
					if (vec[cx].l == -1) { vec[cx].l = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].l;
				}
			}
		}
		vec[cx].val++; vec[cx].num.push_back(NN);
	}
	void lose(long long px, long long py, int NN) {
		int cx = 0;
		for (int i = 61; i >= 0; i--) {
			vec[cx].val -= 1;
			if ((i & 1) == 1) {
				int dep = (i >> 1);
				if (px >= (1LL << dep)) {
					if (vec[cx].r == -1) { vec[cx].r = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].r; px -= (1LL << dep);
				}
				else {
					if (vec[cx].l == -1) { vec[cx].l = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].l;
				}
			}
			else {
				int dep = (i >> 1);
				if (py >= (1LL << dep)) {
					if (vec[cx].r == -1) { vec[cx].r = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].r; py -= (1LL << dep);
				}
				else {
					if (vec[cx].l == -1) { vec[cx].l = size_; vec[size_] = BASE; size_++; }
					cx = vec[cx].l;
				}
			}
		}
		vec[cx].val--; vec[cx].num.clear();
	}
	void query_(long long ax, long long ay, long long bx, long long by, int dep, int u) {
		if (vec[u].val == 0) return;
		if (rx <= ax || bx <= lx || ry <= ay || by <= ly) return;
		if (dep == 0) {
			for (int i : vec[u].num) V.push_back(i);
			return;
		}
		cntv++;
		if (dep % 2 == 0) {
			if (vec[u].l >= 0) query_(ax, ay, (ax + bx) >> 1, by, dep - 1, vec[u].l);
			if (vec[u].r >= 0) query_((ax + bx) >> 1, ay, bx, by, dep - 1, vec[u].r);
		}
		else {
			if (vec[u].l >= 0) query_(ax, ay, bx, (ay + by) >> 1, dep - 1, vec[u].l);
			if (vec[u].r >= 0) query_(ax, (ay + by) >> 1, bx, by, dep - 1, vec[u].r);
		}
	}
	vector<int> query(long long LX, long long LY, long long RX, long long RY) {
		LX = max(LX, 0LL); LY = max(LY, 0LL); RX = min(RX, (1LL << 31)); RY = min(RY, (1LL << 31));
		lx = LX; ly = LY; rx = RX; ry = RY;
		V.clear();
		query_(0, 0, (1LL << 31), (1LL << 31), 62, 0);
		return V;
	}
};

long long N, X[1 << 19], Y[1 << 19], R[1 << 19], score[1 << 19];
bool used[1 << 19];

long long dist(int p1, int p2) {
	return (X[p1] - X[p2]) * (X[p1] - X[p2]) + abs(Y[p1] - Y[p2]) * abs(Y[p1] - Y[p2]);
}

void solve_Jury() {
	while (true) {
		int maxn = -1, id = -1;
		for (int i = 1; i <= N; i++) {
			if (used[i] == true) continue;
			if (maxn < R[i]) { maxn = R[i]; id = i; }
		}

		if (id == -1) break;

		for (int i = 1; i <= N; i++) {
			if (used[i] == true) continue;
			if (dist(id, i) <= (R[i] + R[id]) * (R[i] + R[id])) { used[i] = true; score[i] = id; }
		}
	}
}

bool uses[1 << 19]; SegmentTree Z;

void solve_subtasks() {
	if (N <= 10000) vec.resize(N * 64);
	else if (N <= 100000) vec.resize(N * 50);
	else vec.resize(N * 44);

	priority_queue<pair<long long, int>, vector<pair<long long, int>>, less<pair<long long, int>>>Q;
	Z.init();
	for (int i = 1; i <= N; i++) Q.push(make_pair(R[i], -i));
	for (int i = 1; i <= N; i++) Z.add(X[i], Y[i], i);
	
	while (!Q.empty()) {
		int pos = -Q.top().second;
		vector<int>E = Z.query(X[pos] - 2LL * R[pos], Y[pos] - 2LL * R[pos], X[pos] + 2LL * R[pos] + 1LL, Y[pos] + 2LL * R[pos] + 1LL);
		
		for (int i = 0; i < E.size(); i++) {
			if (dist(pos, E[i]) <= 1LL * (R[pos] + R[E[i]]) * (R[pos] + R[E[i]])) {
				Z.lose(X[E[i]], Y[E[i]], E[i]);
				used[E[i]] = true;
				score[E[i]] = pos;
			}
		}
		while (!Q.empty()) { int pos = -Q.top().second; if (used[pos] == false) break; Q.pop(); }
	}
	return;
}

long long Rand() {
	long long s = 1, t = 0;
	for (int i = 0; i < 3; i++) { t += (rand() % 1024)*s; s *= 1024; }
	return t;
}

int main() {
	srand((unsigned)time(NULL));
	scanf("%lld", &N);
	for (int i = 1; i <= N; i++) {
		scanf("%lld%lld%lld", &X[i], &Y[i], &R[i]);
		X[i] += (1LL << 30); Y[i] += (1LL << 30);
	}

	if (N <= 2) {
		solve_Jury();
	}

	else {
		solve_subtasks();
	}

	for (int i = 1; i <= N; i++) {
		if (i >= 2) printf(" ");
		printf("%lld", score[i]);
	}
	printf("\n");
	return 0;
}

Compilation message

circle_selection.cpp:6:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable: 4996)
 
circle_selection.cpp: In function 'void solve_subtasks()':
circle_selection.cpp:148:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < E.size(); i++) {
                   ~~^~~~~~~~~~
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:168:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &N);
  ~~~~~^~~~~~~~~~~~
circle_selection.cpp:170:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld%lld", &X[i], &Y[i], &R[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 3 ms 640 KB Output is correct
7 Correct 3 ms 640 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 3 ms 640 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 3 ms 640 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
14 Correct 3 ms 640 KB Output is correct
15 Correct 4 ms 640 KB Output is correct
16 Correct 8 ms 2944 KB Output is correct
17 Correct 8 ms 2944 KB Output is correct
18 Correct 8 ms 2944 KB Output is correct
19 Correct 39 ms 13432 KB Output is correct
20 Correct 40 ms 13348 KB Output is correct
21 Correct 40 ms 13440 KB Output is correct
22 Correct 45 ms 13304 KB Output is correct
23 Correct 33 ms 13348 KB Output is correct
24 Correct 37 ms 13432 KB Output is correct
25 Correct 34 ms 13312 KB Output is correct
26 Correct 36 ms 13312 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3149 ms 544308 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 904 ms 204044 KB Output is correct
3 Runtime error 2000 ms 1037316 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2471 ms 540832 KB Output is correct
2 Correct 2509 ms 541028 KB Output is correct
3 Correct 2394 ms 540912 KB Output is correct
4 Correct 2271 ms 540992 KB Output is correct
5 Correct 2394 ms 540836 KB Output is correct
6 Correct 2268 ms 540884 KB Output is correct

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 3 ms 640 KB Output is correct
7 Correct 3 ms 640 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 3 ms 640 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 3 ms 640 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
14 Correct 3 ms 640 KB Output is correct
15 Correct 4 ms 640 KB Output is correct
16 Correct 8 ms 2944 KB Output is correct
17 Correct 8 ms 2944 KB Output is correct
18 Correct 8 ms 2944 KB Output is correct
19 Correct 39 ms 13432 KB Output is correct
20 Correct 40 ms 13348 KB Output is correct
21 Correct 40 ms 13440 KB Output is correct
22 Correct 45 ms 13304 KB Output is correct
23 Correct 33 ms 13348 KB Output is correct
24 Correct 37 ms 13432 KB Output is correct
25 Correct 34 ms 13312 KB Output is correct
26 Correct 36 ms 13312 KB Output is correct
27 Correct 79 ms 26280 KB Output is correct
28 Correct 86 ms 26360 KB Output is correct
29 Correct 86 ms 26360 KB Output is correct
30 Correct 82 ms 26228 KB Output is correct
31 Correct 79 ms 26172 KB Output is correct
32 Correct 78 ms 26228 KB Output is correct
33 Correct 777 ms 205152 KB Output is correct
34 Correct 777 ms 204912 KB Output is correct
35 Correct 802 ms 204904 KB Output is correct
36 Correct 780 ms 204008 KB Output is correct
37 Correct 989 ms 204040 KB Output is correct
38 Correct 884 ms 204068 KB Output is correct
39 Execution timed out 3065 ms 204648 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 512 KB Output is correct
6 Correct 3 ms 640 KB Output is correct
7 Correct 3 ms 640 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 3 ms 640 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 3 ms 640 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
14 Correct 3 ms 640 KB Output is correct
15 Correct 4 ms 640 KB Output is correct
16 Correct 8 ms 2944 KB Output is correct
17 Correct 8 ms 2944 KB Output is correct
18 Correct 8 ms 2944 KB Output is correct
19 Correct 39 ms 13432 KB Output is correct
20 Correct 40 ms 13348 KB Output is correct
21 Correct 40 ms 13440 KB Output is correct
22 Correct 45 ms 13304 KB Output is correct
23 Correct 33 ms 13348 KB Output is correct
24 Correct 37 ms 13432 KB Output is correct
25 Correct 34 ms 13312 KB Output is correct
26 Correct 36 ms 13312 KB Output is correct
27 Execution timed out 3149 ms 544308 KB Time limit exceeded
28 Halted 0 ms 0 KB -