oj.uz

Submission #544185

# Submission time Handle Problem Language Result Execution time Memory
544185 2022-04-01T09:45:37 Z amunduzbaev Circle selection (APIO18_circle_selection) C++17
7 / 100
 1318 ms 39360 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
#define int long long
const double eps = 1e-9;

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

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int n; cin>>n;
	vector<poi> a(n);
	vector<set<ar<int, 2>>> pp;
	vector<int> used(n), tot;
	int R;
	auto get = [&](int x){ return (x / R) - (x < 0); };
	auto rec = [&](){
		pp.clear(); tot.clear();
		for(int i=0;i<n;i++) {
			if(used[i]) continue;
			tot.push_back(get(a[i].x));
		}
		sort(tot.begin(), tot.end());
		tot.erase(unique(tot.begin(), tot.end()), tot.end());
		pp.resize(tot.size());
		for(int i=0;i<n;i++){
			if(used[i]) continue;
			auto j = lower_bound(tot.begin(), tot.end(), get(a[i].x)) - tot.begin();
			assert(j < (int)tot.size());
			pp[j].insert({a[i].y, i});
		}
	};
	
	vector<int> p(n); 
	for(int i=0;i<n;i++){
		p[i] = i;
		cin>>a[i].x>>a[i].y>>a[i].r;
	}
	sort(p.begin(), p.end(), [&](int i, int j){
		return (a[i].r > a[j].r);
	});
	
	auto sq = [&](int x) { return x * 1ll * x; };
	auto dis = [&](int i, int j) -> double{
		return sqrt(sq(a[i].x - a[j].x) + sq(a[i].y - a[j].y));
	};
	
	auto check = [&](int i, int j){
		return (a[i].r + a[j].r - dis(i, j) > -eps);
	};
	
	R = a[p[0]].r;
	rec();
	for(auto i : p){
		if(used[i]) continue;
		if(a[i].r * 2 <= R) R = a[i].r, rec();
		int l = lower_bound(tot.begin(), tot.end(), get(a[i].x) - 2) - tot.begin();
		int r = upper_bound(tot.begin(), tot.end(), get(a[i].x) + 2) - tot.begin();
		int lx = (get(a[i].y) - 2) * R;
		int rx = (get(a[i].y) + 3) * R;
		for(int j=l;j<r;j++){
			auto it = pp[j].lower_bound({lx, -1});
			vector<ar<int, 2>> er;
			while(it != pp[j].end() && (*it)[0] < rx){
				if(check((*it)[1], i)){
					er.push_back(*it);
				} it++;
			}
			
			for(auto x : er) pp[j].erase(x), used[x[1]] = i + 1;
		}
	}
	
	for(int i=0;i<n;i++) cout<<used[i]<<" ";
	cout<<"\n";
}

/*

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

*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 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 4 ms 1004 KB Output is correct
20 Correct 4 ms 1016 KB Output is correct
21 Correct 5 ms 984 KB Output is correct
22 Correct 6 ms 980 KB Output is correct
23 Correct 7 ms 852 KB Output is correct
24 Correct 6 ms 980 KB Output is correct
25 Correct 6 ms 1108 KB Output is correct
26 Correct 7 ms 980 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 267 ms 39284 KB Output is correct
2 Correct 306 ms 36616 KB Output is correct
3 Correct 287 ms 36924 KB Output is correct
4 Correct 267 ms 39360 KB Output is correct
5 Incorrect 371 ms 35476 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 189 ms 11548 KB Output is correct
3 Correct 777 ms 34056 KB Output is correct
4 Correct 750 ms 36108 KB Output is correct
5 Incorrect 836 ms 32476 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 475 ms 38900 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 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 4 ms 1004 KB Output is correct
20 Correct 4 ms 1016 KB Output is correct
21 Correct 5 ms 984 KB Output is correct
22 Correct 6 ms 980 KB Output is correct
23 Correct 7 ms 852 KB Output is correct
24 Correct 6 ms 980 KB Output is correct
25 Correct 6 ms 1108 KB Output is correct
26 Correct 7 ms 980 KB Output is correct
27 Correct 10 ms 1620 KB Output is correct
28 Correct 8 ms 1620 KB Output is correct
29 Correct 9 ms 1620 KB Output is correct
30 Correct 13 ms 1492 KB Output is correct
31 Correct 13 ms 1748 KB Output is correct
32 Correct 13 ms 1712 KB Output is correct
33 Correct 98 ms 13424 KB Output is correct
34 Correct 103 ms 13456 KB Output is correct
35 Correct 108 ms 12872 KB Output is correct
36 Correct 172 ms 13596 KB Output is correct
37 Correct 172 ms 14604 KB Output is correct
38 Correct 177 ms 12288 KB Output is correct
39 Incorrect 1318 ms 11868 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 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 4 ms 1004 KB Output is correct
20 Correct 4 ms 1016 KB Output is correct
21 Correct 5 ms 984 KB Output is correct
22 Correct 6 ms 980 KB Output is correct
23 Correct 7 ms 852 KB Output is correct
24 Correct 6 ms 980 KB Output is correct
25 Correct 6 ms 1108 KB Output is correct
26 Correct 7 ms 980 KB Output is correct
27 Correct 267 ms 39284 KB Output is correct
28 Correct 306 ms 36616 KB Output is correct
29 Correct 287 ms 36924 KB Output is correct
30 Correct 267 ms 39360 KB Output is correct
31 Incorrect 371 ms 35476 KB Output isn't correct
32 Halted 0 ms 0 KB -