oj.uz

Submission #106495

# Submission time Handle Problem Language Result Execution time Memory
106495 2019-04-19T01:17:41 Z bert30702 Circle selection (APIO18_circle_selection) C++17
0 / 100
 3000 ms 20100 KB 
#include <bits/stdc++.h>
#define pii pair<int, int>
#define F first
#define S second
#define X real()
#define Y imag()
using namespace std;
typedef complex<long double> C;
const int MX = 3e5 + 100;
struct circle { C p; int r, i; } v[MX];
int ans[MX];
main () {
	srand(time(0));
	int n; cin >> n;
	for(int i = 1; i <= n; i ++) {
		int x, y, r; cin >> x >> y >> r;
		v[i] = {{x, y}, r, i};
	}
	int ang = rand() * 0.0001;
	for(int i = 1; i <= n; i ++) v[i].p *= C{cos(ang), sin(ang)};
	sort(v + 1, v + 1 + n, [](circle a, circle b) { return a.p.X < b.p.X; });
	priority_queue<pii> pq;
	for(int i = 1; i <= n; i ++) pq.push({v[i].r, -i});
	while(pq.size()) {
		pii p = pq.top(); pq.pop();
		p.S = -p.S;
		if(ans[v[p.S].i]) continue;
		for(int i = max(1, p.S - 400); i <= min(n, p.S + 400); i ++) {
			if(!ans[v[i].i] and abs(v[p.S].p - v[i].p) <= v[p.S].r + v[i].r) ans[v[i].i] = v[p.S].i;
		}
	}
	for(int i = 1; i <= n; i ++) cout << ans[i] << ' ';
}
/*
11
9 9 2
13 2 1
11 8 2
3 3 2
3 12 1
12 14 1
9 8 5
2 8 2
5 2 1
14 4 2
14 14 1
*/

Compilation message

circle_selection.cpp:12:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:17:23: warning: narrowing conversion of 'x' from 'int' to 'long double' inside { } [-Wnarrowing]
   v[i] = {{x, y}, r, i};
                       ^
circle_selection.cpp:17:23: warning: narrowing conversion of 'y' from 'int' to 'long double' inside { } [-Wnarrowing]

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14464 KB Output is correct
2 Correct 14 ms 14464 KB Output is correct
3 Correct 15 ms 14464 KB Output is correct
4 Correct 14 ms 14464 KB Output is correct
5 Correct 15 ms 14436 KB Output is correct
6 Correct 15 ms 14464 KB Output is correct
7 Correct 14 ms 14464 KB Output is correct
8 Correct 14 ms 14464 KB Output is correct
9 Correct 15 ms 14464 KB Output is correct
10 Correct 14 ms 14464 KB Output is correct
11 Correct 14 ms 14464 KB Output is correct
12 Correct 17 ms 14436 KB Output is correct
13 Correct 14 ms 14464 KB Output is correct
14 Correct 14 ms 14436 KB Output is correct
15 Correct 14 ms 14464 KB Output is correct
16 Incorrect 15 ms 14464 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 559 ms 20100 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 14464 KB Output is correct
2 Correct 2604 ms 16396 KB Output is correct
3 Execution timed out 3009 ms 18672 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3034 ms 18668 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14464 KB Output is correct
2 Correct 14 ms 14464 KB Output is correct
3 Correct 15 ms 14464 KB Output is correct
4 Correct 14 ms 14464 KB Output is correct
5 Correct 15 ms 14436 KB Output is correct
6 Correct 15 ms 14464 KB Output is correct
7 Correct 14 ms 14464 KB Output is correct
8 Correct 14 ms 14464 KB Output is correct
9 Correct 15 ms 14464 KB Output is correct
10 Correct 14 ms 14464 KB Output is correct
11 Correct 14 ms 14464 KB Output is correct
12 Correct 17 ms 14436 KB Output is correct
13 Correct 14 ms 14464 KB Output is correct
14 Correct 14 ms 14436 KB Output is correct
15 Correct 14 ms 14464 KB Output is correct
16 Incorrect 15 ms 14464 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14464 KB Output is correct
2 Correct 14 ms 14464 KB Output is correct
3 Correct 15 ms 14464 KB Output is correct
4 Correct 14 ms 14464 KB Output is correct
5 Correct 15 ms 14436 KB Output is correct
6 Correct 15 ms 14464 KB Output is correct
7 Correct 14 ms 14464 KB Output is correct
8 Correct 14 ms 14464 KB Output is correct
9 Correct 15 ms 14464 KB Output is correct
10 Correct 14 ms 14464 KB Output is correct
11 Correct 14 ms 14464 KB Output is correct
12 Correct 17 ms 14436 KB Output is correct
13 Correct 14 ms 14464 KB Output is correct
14 Correct 14 ms 14436 KB Output is correct
15 Correct 14 ms 14464 KB Output is correct
16 Incorrect 15 ms 14464 KB Output isn't correct
17 Halted 0 ms 0 KB -