oj.uz

Submission #111244

# Submission time Handle Problem Language Result Execution time Memory
111244 2019-05-14T13:16:59 Z Just_Solve_The_Problem Circle selection (APIO18_circle_selection) C++11
72 / 100
 3000 ms 62944 KB 
#include <bits/stdc++.h>
 
#define ll long long
 
using namespace std;
 
const int N = (int)3e5+ 7;
 
int x[N], y[N], r[N];
int n;
int ans[N];
map<pair<int, int>, vector<int>> mp;
int pos[N];
int block = 0;
set <int> ost;

ll sqr(ll x) {
	return x * x;
}

ll dist(int x1, int y1, int x2, int y2) {
	return sqr(x1 - x2) + sqr(y1 - y2);
}

void rescale() {
	mp.clear();
	for (int to : ost) {
		mp[{x[to] / block, y[to] / block}].push_back(to);
	}
}

main() {
	iota(pos, pos + N, 0);
	scanf("%d", &n);
	for (int i = 1; i <= n; i++) {
		scanf("%d %d %d", &x[i], &y[i], &r[i]);
		ost.insert(i);
	}
	sort(pos + 1, pos + n + 1, [&](const int &A, const int &B) {
		if (r[A] == r[B]) return A < B;
		return r[A] > r[B];
	});
	for (int i = 1; i <= n; i++) {
		if (ans[pos[i]]) continue;
		if (block == 0 || r[pos[i]] * 2 <= block) {
			block = r[pos[i]];
			rescale();
		}
		for (int cx = x[pos[i]] / block - 2; cx <= x[pos[i]] / block + 2; cx++) {
			for (int cy = y[pos[i]] / block - 2; cy <= y[pos[i]] / block + 2; cy++) {
				if (!mp.count({cx, cy})) continue;
				for (int to : mp[{cx, cy}]) {
					if (!ans[to] && dist(x[pos[i]], y[pos[i]], x[to], y[to]) <= sqr(r[pos[i]] + r[to])) {
						ans[to] = pos[i];
						ost.erase(to);
					}
				}
			}
		}
	}
	for (int i = 1; i <= n; i++) {
		printf("%d ", ans[i]);
	}
}
/*
11
9 9 3
13 2 3
11 8 3
3 3 3
3 12 3
12 14 3
9 8 3
2 8 3
5 2 3
14 4 3
14 14 3
*/

Compilation message

circle_selection.cpp:32:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
circle_selection.cpp:36:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &x[i], &y[i], &r[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1536 KB Output is correct
2 Correct 3 ms 1536 KB Output is correct
3 Correct 3 ms 1528 KB Output is correct
4 Correct 3 ms 1536 KB Output is correct
5 Correct 3 ms 1536 KB Output is correct
6 Correct 3 ms 1536 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 3 ms 1536 KB Output is correct
9 Correct 4 ms 1536 KB Output is correct
10 Correct 3 ms 1536 KB Output is correct
11 Correct 2 ms 1536 KB Output is correct
12 Correct 3 ms 1536 KB Output is correct
13 Correct 3 ms 1536 KB Output is correct
14 Correct 3 ms 1536 KB Output is correct
15 Correct 4 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 4 ms 1536 KB Output is correct
18 Correct 4 ms 1536 KB Output is correct
19 Correct 8 ms 1920 KB Output is correct
20 Correct 7 ms 1920 KB Output is correct
21 Correct 7 ms 1920 KB Output is correct
22 Correct 25 ms 2432 KB Output is correct
23 Correct 21 ms 2432 KB Output is correct
24 Correct 21 ms 2560 KB Output is correct
25 Correct 17 ms 2432 KB Output is correct
26 Correct 18 ms 2432 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 364 ms 22596 KB Output is correct
2 Correct 350 ms 23196 KB Output is correct
3 Correct 337 ms 23532 KB Output is correct
4 Correct 343 ms 22608 KB Output is correct
5 Correct 789 ms 23068 KB Output is correct
6 Correct 1530 ms 38520 KB Output is correct
7 Correct 742 ms 24440 KB Output is correct
8 Correct 948 ms 28584 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1536 KB Output is correct
2 Correct 873 ms 19256 KB Output is correct
3 Execution timed out 3009 ms 61332 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2231 ms 55208 KB Output is correct
2 Correct 1511 ms 62420 KB Output is correct
3 Correct 1076 ms 40532 KB Output is correct
4 Correct 1633 ms 62764 KB Output is correct
5 Correct 1510 ms 62944 KB Output is correct
6 Correct 716 ms 34080 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1536 KB Output is correct
2 Correct 3 ms 1536 KB Output is correct
3 Correct 3 ms 1528 KB Output is correct
4 Correct 3 ms 1536 KB Output is correct
5 Correct 3 ms 1536 KB Output is correct
6 Correct 3 ms 1536 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 3 ms 1536 KB Output is correct
9 Correct 4 ms 1536 KB Output is correct
10 Correct 3 ms 1536 KB Output is correct
11 Correct 2 ms 1536 KB Output is correct
12 Correct 3 ms 1536 KB Output is correct
13 Correct 3 ms 1536 KB Output is correct
14 Correct 3 ms 1536 KB Output is correct
15 Correct 4 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 4 ms 1536 KB Output is correct
18 Correct 4 ms 1536 KB Output is correct
19 Correct 8 ms 1920 KB Output is correct
20 Correct 7 ms 1920 KB Output is correct
21 Correct 7 ms 1920 KB Output is correct
22 Correct 25 ms 2432 KB Output is correct
23 Correct 21 ms 2432 KB Output is correct
24 Correct 21 ms 2560 KB Output is correct
25 Correct 17 ms 2432 KB Output is correct
26 Correct 18 ms 2432 KB Output is correct
27 Correct 12 ms 2304 KB Output is correct
28 Correct 12 ms 2588 KB Output is correct
29 Correct 12 ms 2560 KB Output is correct
30 Correct 45 ms 3584 KB Output is correct
31 Correct 52 ms 3576 KB Output is correct
32 Correct 46 ms 3576 KB Output is correct
33 Correct 112 ms 12148 KB Output is correct
34 Correct 124 ms 12136 KB Output is correct
35 Correct 112 ms 11492 KB Output is correct
36 Correct 801 ms 21880 KB Output is correct
37 Correct 876 ms 22008 KB Output is correct
38 Correct 874 ms 22108 KB Output is correct
39 Correct 721 ms 19000 KB Output is correct
40 Correct 631 ms 18900 KB Output is correct
41 Correct 617 ms 18956 KB Output is correct
42 Correct 558 ms 20984 KB Output is correct
43 Correct 494 ms 21752 KB Output is correct
44 Correct 459 ms 21880 KB Output is correct
45 Correct 448 ms 21752 KB Output is correct
46 Correct 461 ms 21732 KB Output is correct
47 Correct 464 ms 21796 KB Output is correct
48 Correct 492 ms 21788 KB Output is correct
49 Correct 488 ms 21752 KB Output is correct
50 Correct 463 ms 21924 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1536 KB Output is correct
2 Correct 3 ms 1536 KB Output is correct
3 Correct 3 ms 1528 KB Output is correct
4 Correct 3 ms 1536 KB Output is correct
5 Correct 3 ms 1536 KB Output is correct
6 Correct 3 ms 1536 KB Output is correct
7 Correct 4 ms 1536 KB Output is correct
8 Correct 3 ms 1536 KB Output is correct
9 Correct 4 ms 1536 KB Output is correct
10 Correct 3 ms 1536 KB Output is correct
11 Correct 2 ms 1536 KB Output is correct
12 Correct 3 ms 1536 KB Output is correct
13 Correct 3 ms 1536 KB Output is correct
14 Correct 3 ms 1536 KB Output is correct
15 Correct 4 ms 1536 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 4 ms 1536 KB Output is correct
18 Correct 4 ms 1536 KB Output is correct
19 Correct 8 ms 1920 KB Output is correct
20 Correct 7 ms 1920 KB Output is correct
21 Correct 7 ms 1920 KB Output is correct
22 Correct 25 ms 2432 KB Output is correct
23 Correct 21 ms 2432 KB Output is correct
24 Correct 21 ms 2560 KB Output is correct
25 Correct 17 ms 2432 KB Output is correct
26 Correct 18 ms 2432 KB Output is correct
27 Correct 364 ms 22596 KB Output is correct
28 Correct 350 ms 23196 KB Output is correct
29 Correct 337 ms 23532 KB Output is correct
30 Correct 343 ms 22608 KB Output is correct
31 Correct 789 ms 23068 KB Output is correct
32 Correct 1530 ms 38520 KB Output is correct
33 Correct 742 ms 24440 KB Output is correct
34 Correct 948 ms 28584 KB Output is correct
35 Correct 2 ms 1536 KB Output is correct
36 Correct 873 ms 19256 KB Output is correct
37 Execution timed out 3009 ms 61332 KB Time limit exceeded
38 Halted 0 ms 0 KB -