oj.uz

Submission #728329

# Submission time Handle Problem Language Result Execution time Memory
728329 2023-04-22T07:37:41 Z SanguineChameleon Circle selection (APIO18_circle_selection) C++17
100 / 100
 1218 ms 57664 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<int, vector<pair<int, 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].emplace_back(cy, i);
	}
	for (auto &p: groups) {
		sort(p.second.begin(), p.second.end());
	}
}
 
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 || C[cur].r * 2 < len) {
			len = C[cur].r;
			build(len);
		}
		int cx = floor(C[cur].x, len);
		int cy = floor(C[cur].y, len);
		auto g_it = groups.lower_bound(cx - 2);
		while (g_it != groups.end()) {
			if (g_it->first > cx + 2) {
				break;
			}
			auto it = lower_bound(g_it->second.begin(), g_it->second.end(), make_pair(cy - 2, -1));
			while (it != g_it->second.end()) {
				if (it->first > cy + 2) {
					break;
				}
				int can = it->second;
				if (!res[can] && intersect(C[cur], C[can])) {
					res[can] = cur;
					S.erase({-C[can].r, can});
				}
				it++;
			}
			g_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 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 328 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 332 KB Output is correct
14 Correct 1 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 884 KB Output is correct
20 Correct 5 ms 840 KB Output is correct
21 Correct 6 ms 844 KB Output is correct
22 Correct 7 ms 1108 KB Output is correct
23 Correct 9 ms 900 KB Output is correct
24 Correct 10 ms 1108 KB Output is correct
25 Correct 9 ms 1308 KB Output is correct
26 Correct 8 ms 1212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 493 ms 22352 KB Output is correct
2 Correct 528 ms 22372 KB Output is correct
3 Correct 509 ms 24152 KB Output is correct
4 Correct 494 ms 23616 KB Output is correct
5 Correct 552 ms 26156 KB Output is correct
6 Correct 919 ms 38668 KB Output is correct
7 Correct 637 ms 27844 KB Output is correct
8 Correct 704 ms 29936 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 258 ms 9664 KB Output is correct
3 Correct 1032 ms 27920 KB Output is correct
4 Correct 1099 ms 28072 KB Output is correct
5 Correct 977 ms 24772 KB Output is correct
6 Correct 399 ms 14084 KB Output is correct
7 Correct 141 ms 8068 KB Output is correct
8 Correct 24 ms 2680 KB Output is correct
9 Correct 1149 ms 26568 KB Output is correct
10 Correct 944 ms 24508 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 711 ms 33252 KB Output is correct
2 Correct 713 ms 54812 KB Output is correct
3 Correct 469 ms 25020 KB Output is correct
4 Correct 682 ms 52312 KB Output is correct
5 Correct 705 ms 53632 KB Output is correct
6 Correct 467 ms 23964 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 328 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 332 KB Output is correct
14 Correct 1 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 884 KB Output is correct
20 Correct 5 ms 840 KB Output is correct
21 Correct 6 ms 844 KB Output is correct
22 Correct 7 ms 1108 KB Output is correct
23 Correct 9 ms 900 KB Output is correct
24 Correct 10 ms 1108 KB Output is correct
25 Correct 9 ms 1308 KB Output is correct
26 Correct 8 ms 1212 KB Output is correct
27 Correct 10 ms 1316 KB Output is correct
28 Correct 10 ms 1364 KB Output is correct
29 Correct 13 ms 1364 KB Output is correct
30 Correct 19 ms 1416 KB Output is correct
31 Correct 16 ms 1820 KB Output is correct
32 Correct 16 ms 1800 KB Output is correct
33 Correct 100 ms 8416 KB Output is correct
34 Correct 104 ms 8460 KB Output is correct
35 Correct 129 ms 7956 KB Output is correct
36 Correct 247 ms 12276 KB Output is correct
37 Correct 248 ms 12084 KB Output is correct
38 Correct 302 ms 10904 KB Output is correct
39 Correct 300 ms 8772 KB Output is correct
40 Correct 317 ms 8800 KB Output is correct
41 Correct 296 ms 8944 KB Output is correct
42 Correct 118 ms 8888 KB Output is correct
43 Correct 201 ms 18020 KB Output is correct
44 Correct 177 ms 18076 KB Output is correct
45 Correct 165 ms 18068 KB Output is correct
46 Correct 234 ms 18108 KB Output is correct
47 Correct 186 ms 18000 KB Output is correct
48 Correct 183 ms 18028 KB Output is correct
49 Correct 261 ms 18012 KB Output is correct
50 Correct 195 ms 18048 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 324 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 328 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 332 KB Output is correct
14 Correct 1 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 884 KB Output is correct
20 Correct 5 ms 840 KB Output is correct
21 Correct 6 ms 844 KB Output is correct
22 Correct 7 ms 1108 KB Output is correct
23 Correct 9 ms 900 KB Output is correct
24 Correct 10 ms 1108 KB Output is correct
25 Correct 9 ms 1308 KB Output is correct
26 Correct 8 ms 1212 KB Output is correct
27 Correct 493 ms 22352 KB Output is correct
28 Correct 528 ms 22372 KB Output is correct
29 Correct 509 ms 24152 KB Output is correct
30 Correct 494 ms 23616 KB Output is correct
31 Correct 552 ms 26156 KB Output is correct
32 Correct 919 ms 38668 KB Output is correct
33 Correct 637 ms 27844 KB Output is correct
34 Correct 704 ms 29936 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 258 ms 9664 KB Output is correct
37 Correct 1032 ms 27920 KB Output is correct
38 Correct 1099 ms 28072 KB Output is correct
39 Correct 977 ms 24772 KB Output is correct
40 Correct 399 ms 14084 KB Output is correct
41 Correct 141 ms 8068 KB Output is correct
42 Correct 24 ms 2680 KB Output is correct
43 Correct 1149 ms 26568 KB Output is correct
44 Correct 944 ms 24508 KB Output is correct
45 Correct 711 ms 33252 KB Output is correct
46 Correct 713 ms 54812 KB Output is correct
47 Correct 469 ms 25020 KB Output is correct
48 Correct 682 ms 52312 KB Output is correct
49 Correct 705 ms 53632 KB Output is correct
50 Correct 467 ms 23964 KB Output is correct
51 Correct 10 ms 1316 KB Output is correct
52 Correct 10 ms 1364 KB Output is correct
53 Correct 13 ms 1364 KB Output is correct
54 Correct 19 ms 1416 KB Output is correct
55 Correct 16 ms 1820 KB Output is correct
56 Correct 16 ms 1800 KB Output is correct
57 Correct 100 ms 8416 KB Output is correct
58 Correct 104 ms 8460 KB Output is correct
59 Correct 129 ms 7956 KB Output is correct
60 Correct 247 ms 12276 KB Output is correct
61 Correct 248 ms 12084 KB Output is correct
62 Correct 302 ms 10904 KB Output is correct
63 Correct 300 ms 8772 KB Output is correct
64 Correct 317 ms 8800 KB Output is correct
65 Correct 296 ms 8944 KB Output is correct
66 Correct 118 ms 8888 KB Output is correct
67 Correct 201 ms 18020 KB Output is correct
68 Correct 177 ms 18076 KB Output is correct
69 Correct 165 ms 18068 KB Output is correct
70 Correct 234 ms 18108 KB Output is correct
71 Correct 186 ms 18000 KB Output is correct
72 Correct 183 ms 18028 KB Output is correct
73 Correct 261 ms 18012 KB Output is correct
74 Correct 195 ms 18048 KB Output is correct
75 Correct 522 ms 22404 KB Output is correct
76 Correct 536 ms 22188 KB Output is correct
77 Correct 540 ms 24352 KB Output is correct
78 Correct 455 ms 24024 KB Output is correct
79 Correct 580 ms 22412 KB Output is correct
80 Correct 470 ms 23984 KB Output is correct
81 Correct 1012 ms 28592 KB Output is correct
82 Correct 1068 ms 30324 KB Output is correct
83 Correct 1174 ms 30220 KB Output is correct
84 Correct 1065 ms 26812 KB Output is correct
85 Correct 1060 ms 29248 KB Output is correct
86 Correct 1195 ms 30844 KB Output is correct
87 Correct 851 ms 24448 KB Output is correct
88 Correct 1111 ms 25532 KB Output is correct
89 Correct 1060 ms 28716 KB Output is correct
90 Correct 1169 ms 28556 KB Output is correct
91 Correct 1045 ms 28504 KB Output is correct
92 Correct 1145 ms 28500 KB Output is correct
93 Correct 1102 ms 57260 KB Output is correct
94 Correct 497 ms 26860 KB Output is correct
95 Correct 1034 ms 57460 KB Output is correct
96 Correct 1086 ms 56344 KB Output is correct
97 Correct 609 ms 26196 KB Output is correct
98 Correct 914 ms 40500 KB Output is correct
99 Correct 1164 ms 57368 KB Output is correct
100 Correct 852 ms 57664 KB Output is correct
101 Correct 972 ms 34736 KB Output is correct
102 Correct 1218 ms 56468 KB Output is correct
103 Correct 608 ms 25960 KB Output is correct
104 Correct 1094 ms 57616 KB Output is correct
105 Correct 490 ms 29760 KB Output is correct
106 Correct 745 ms 50788 KB Output is correct
107 Correct 776 ms 50592 KB Output is correct
108 Correct 757 ms 50444 KB Output is correct
109 Correct 761 ms 50452 KB Output is correct
110 Correct 773 ms 50416 KB Output is correct
111 Correct 783 ms 50216 KB Output is correct
112 Correct 768 ms 50204 KB Output is correct
113 Correct 813 ms 49764 KB Output is correct
114 Correct 806 ms 49500 KB Output is correct
115 Correct 715 ms 49232 KB Output is correct
116 Correct 774 ms 53536 KB Output is correct