oj.uz

Submission #728312

# Submission time Handle Problem Language Result Execution time Memory
728312 2023-04-22T07:19:02 Z SanguineChameleon Circle selection (APIO18_circle_selection) C++17
87 / 100
 3000 ms 63936 KB 
#include <bits/stdc++.h>
using namespace std;

void just_do_it();

int main() {
	#ifdef KAMIRULEZ
		freopen("kamirulez.inp", "r", stdin);
		freopen("kamirulez.out", "w", stdout);
	#endif
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	just_do_it();
	return 0;
}

struct circle {
	int x, y, r;
};

bool intersect(circle C1, circle C2) {
	return 1LL * (C1.r + C2.r) * (C1.r + C2.r) >= 1LL * (C1.x - C2.x) * (C1.x - C2.x) + 1LL * (C1.y - C2.y) * (C1.y - C2.y); 
}

const int maxn = 3e5 + 20;
circle C[maxn];
int res[maxn];
set<pair<int, int>> S;
map<pair<int, int>, set<int>> groups;
int n;

int floor(int a, int b) {
	return (a / b) - (a % b && (a ^ b) < 0);
}

void build(int len) {
	groups.clear();
	for (auto p: S) {
		int i = p.second;
		int cx = floor(C[i].x, len);
		int cy = floor(C[i].y, len);
		groups[{cx, cy}].insert(i);
	}
}

void just_do_it() {
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> C[i].x >> C[i].y >> C[i].r;
		S.insert({-C[i].r, i});
	}
	int len = -1;
	while (!S.empty()) {
		int cur = S.begin()->second;
		if (len == -1 || 1.5 * C[cur].r < len) {
			len = C[cur].r;
			build(len);
		}
		int cx = floor(C[cur].x, len);
		int cy = floor(C[cur].y, len);
		for (int i = -2; i <= 2; i++) {
			for (int j = -2; j <= 2; j++) {
				auto g_it = groups.find({cx + i, cy + j});
				if (g_it == groups.end()) {
					continue;
				}
				auto it = g_it->second.begin();
				while (it != g_it->second.end()) {
					int can = *it;
					if (intersect(C[cur], C[can])) {
						res[can] = cur;
						it = g_it->second.erase(it);
						S.erase({-C[can].r, can});
					}
					else {
						it++;
					}
				}
			}
		}
	}
	for (int i = 1; i <= n; i++) {
		cout << res[i] << " ";
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 5 ms 852 KB Output is correct
20 Correct 5 ms 852 KB Output is correct
21 Correct 5 ms 884 KB Output is correct
22 Correct 14 ms 1364 KB Output is correct
23 Correct 17 ms 1348 KB Output is correct
24 Correct 15 ms 1356 KB Output is correct
25 Correct 15 ms 1356 KB Output is correct
26 Correct 13 ms 1364 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 602 ms 35232 KB Output is correct
2 Correct 595 ms 35276 KB Output is correct
3 Correct 691 ms 35036 KB Output is correct
4 Correct 686 ms 35412 KB Output is correct
5 Correct 627 ms 35608 KB Output is correct
6 Correct 1074 ms 48980 KB Output is correct
7 Correct 679 ms 36776 KB Output is correct
8 Correct 819 ms 39240 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 240 KB Output is correct
2 Correct 618 ms 21172 KB Output is correct
3 Correct 2379 ms 63300 KB Output is correct
4 Correct 2385 ms 63276 KB Output is correct
5 Correct 2505 ms 58348 KB Output is correct
6 Correct 897 ms 29900 KB Output is correct
7 Correct 333 ms 15680 KB Output is correct
8 Correct 37 ms 3468 KB Output is correct
9 Correct 2897 ms 62688 KB Output is correct
10 Correct 2487 ms 55736 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1478 ms 63560 KB Output is correct
2 Correct 1056 ms 63324 KB Output is correct
3 Correct 739 ms 42828 KB Output is correct
4 Correct 1132 ms 63344 KB Output is correct
5 Correct 1089 ms 63436 KB Output is correct
6 Correct 587 ms 36016 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 5 ms 852 KB Output is correct
20 Correct 5 ms 852 KB Output is correct
21 Correct 5 ms 884 KB Output is correct
22 Correct 14 ms 1364 KB Output is correct
23 Correct 17 ms 1348 KB Output is correct
24 Correct 15 ms 1356 KB Output is correct
25 Correct 15 ms 1356 KB Output is correct
26 Correct 13 ms 1364 KB Output is correct
27 Correct 10 ms 1364 KB Output is correct
28 Correct 10 ms 1364 KB Output is correct
29 Correct 10 ms 1388 KB Output is correct
30 Correct 32 ms 2368 KB Output is correct
31 Correct 29 ms 2368 KB Output is correct
32 Correct 31 ms 2348 KB Output is correct
33 Correct 166 ms 11904 KB Output is correct
34 Correct 135 ms 11856 KB Output is correct
35 Correct 136 ms 11848 KB Output is correct
36 Correct 526 ms 21184 KB Output is correct
37 Correct 601 ms 21176 KB Output is correct
38 Correct 554 ms 21288 KB Output is correct
39 Correct 988 ms 19876 KB Output is correct
40 Correct 1106 ms 19848 KB Output is correct
41 Correct 1282 ms 19720 KB Output is correct
42 Correct 323 ms 21152 KB Output is correct
43 Correct 322 ms 21024 KB Output is correct
44 Correct 339 ms 20952 KB Output is correct
45 Correct 331 ms 20956 KB Output is correct
46 Correct 341 ms 20944 KB Output is correct
47 Correct 309 ms 21068 KB Output is correct
48 Correct 321 ms 21052 KB Output is correct
49 Correct 329 ms 20980 KB Output is correct
50 Correct 333 ms 20976 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 5 ms 852 KB Output is correct
20 Correct 5 ms 852 KB Output is correct
21 Correct 5 ms 884 KB Output is correct
22 Correct 14 ms 1364 KB Output is correct
23 Correct 17 ms 1348 KB Output is correct
24 Correct 15 ms 1356 KB Output is correct
25 Correct 15 ms 1356 KB Output is correct
26 Correct 13 ms 1364 KB Output is correct
27 Correct 602 ms 35232 KB Output is correct
28 Correct 595 ms 35276 KB Output is correct
29 Correct 691 ms 35036 KB Output is correct
30 Correct 686 ms 35412 KB Output is correct
31 Correct 627 ms 35608 KB Output is correct
32 Correct 1074 ms 48980 KB Output is correct
33 Correct 679 ms 36776 KB Output is correct
34 Correct 819 ms 39240 KB Output is correct
35 Correct 1 ms 240 KB Output is correct
36 Correct 618 ms 21172 KB Output is correct
37 Correct 2379 ms 63300 KB Output is correct
38 Correct 2385 ms 63276 KB Output is correct
39 Correct 2505 ms 58348 KB Output is correct
40 Correct 897 ms 29900 KB Output is correct
41 Correct 333 ms 15680 KB Output is correct
42 Correct 37 ms 3468 KB Output is correct
43 Correct 2897 ms 62688 KB Output is correct
44 Correct 2487 ms 55736 KB Output is correct
45 Correct 1478 ms 63560 KB Output is correct
46 Correct 1056 ms 63324 KB Output is correct
47 Correct 739 ms 42828 KB Output is correct
48 Correct 1132 ms 63344 KB Output is correct
49 Correct 1089 ms 63436 KB Output is correct
50 Correct 587 ms 36016 KB Output is correct
51 Correct 10 ms 1364 KB Output is correct
52 Correct 10 ms 1364 KB Output is correct
53 Correct 10 ms 1388 KB Output is correct
54 Correct 32 ms 2368 KB Output is correct
55 Correct 29 ms 2368 KB Output is correct
56 Correct 31 ms 2348 KB Output is correct
57 Correct 166 ms 11904 KB Output is correct
58 Correct 135 ms 11856 KB Output is correct
59 Correct 136 ms 11848 KB Output is correct
60 Correct 526 ms 21184 KB Output is correct
61 Correct 601 ms 21176 KB Output is correct
62 Correct 554 ms 21288 KB Output is correct
63 Correct 988 ms 19876 KB Output is correct
64 Correct 1106 ms 19848 KB Output is correct
65 Correct 1282 ms 19720 KB Output is correct
66 Correct 323 ms 21152 KB Output is correct
67 Correct 322 ms 21024 KB Output is correct
68 Correct 339 ms 20952 KB Output is correct
69 Correct 331 ms 20956 KB Output is correct
70 Correct 341 ms 20944 KB Output is correct
71 Correct 309 ms 21068 KB Output is correct
72 Correct 321 ms 21052 KB Output is correct
73 Correct 329 ms 20980 KB Output is correct
74 Correct 333 ms 20976 KB Output is correct
75 Correct 717 ms 34972 KB Output is correct
76 Correct 693 ms 35760 KB Output is correct
77 Correct 614 ms 35788 KB Output is correct
78 Correct 713 ms 35632 KB Output is correct
79 Correct 910 ms 35724 KB Output is correct
80 Correct 619 ms 35504 KB Output is correct
81 Correct 2443 ms 63936 KB Output is correct
82 Correct 2518 ms 63884 KB Output is correct
83 Correct 2428 ms 63784 KB Output is correct
84 Correct 2484 ms 63752 KB Output is correct
85 Correct 2384 ms 63788 KB Output is correct
86 Correct 2431 ms 63792 KB Output is correct
87 Correct 2705 ms 63644 KB Output is correct
88 Execution timed out 3058 ms 32176 KB Time limit exceeded
89 Halted 0 ms 0 KB -