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Submission #240017

# Submission time Handle Problem Language Result Execution time Memory
240017 2020-06-17T17:32:45 Z alishahali1382 Circle selection (APIO18_circle_selection) C++14
100 / 100
 1753 ms 35440 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O2,unroll-loops")
//#pragma GCC optimize("no-stack-protector,fast-math")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<pii, int> piii;
typedef pair<ll, ll> pll;
#define debug(x) cerr<<#x<<'='<<(x)<<endl;
#define debugp(x) cerr<<#x<<"= {"<<(x.first)<<", "<<(x.second)<<"}"<<endl;
#define debug2(x, y) cerr<<"{"<<#x<<", "<<#y<<"} = {"<<(x)<<", "<<(y)<<"}"<<endl;
#define debugv(v) {cerr<<#v<<" : ";for (auto x:v) cerr<<x<<' ';cerr<<endl;}
#define all(x) x.begin(), x.end()
#define pb push_back
#define kill(x) return cout<<x<<'\n', 0;

const ld eps=1e-7;
const int inf=1000000010;
const ll INF=10000000000000010LL;
const int mod=1000000007;
const int MAXN=300010, LOG=20;

int n, m, k, u, v, x, y, t, a, b, sz;
int X[MAXN], Y[MAXN], R[MAXN], P[MAXN], L;
int ans[MAXN];
pii shit[MAXN];
vector<int> mp[MAXN];

bool check(int i, int j){
	ll dx=X[i]-X[j], dy=Y[i]-Y[j], r=R[i]+R[j];
	return dx*dx+dy*dy<=r*r;
}

int gt(pii p){
	return lower_bound(shit, shit+sz, p)-shit;
}

void Build(){
	for (int i=0; i<sz; i++) mp[i].clear();
	sz=0;
	for (int i=1; i<=n; i++) if (!ans[i]) shit[sz++]={X[i]/L, Y[i]/L};
	sort(shit, shit+sz);
	sz=unique(shit, shit+sz)-shit;
	for (int i=1; i<=n; i++) if (!ans[i]) mp[gt({X[i]/L, Y[i]/L})].pb(i);
}

int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	//freopen("input.txt", "r", stdin);
	//freopen("output.txt", "w", stdout);
	cin>>n;
	for (int i=1; i<=n; i++) cin>>X[i]>>Y[i]>>R[i], P[i]=i;
	sort(P+1, P+n+1, [](int i, int j){
		return pii(R[i], -i)>pii(R[j], -j);	
	});
	L=R[P[1]];
	Build();
	
//	for (int i=0; i<sz; i++) debugp(shit[i])
	
	for (int i=1; i<=n; i++){
		int id=P[i];
		if (ans[id]) continue ;
		if (R[id]<.75*L) L=R[id], Build();
		int x=X[id]/L, y=Y[id]/L;
		for (int xx=x-2; xx<=x+2; xx++)
			for (int yy=y-2; yy<=y+2; yy++){
				int pos=gt({xx, yy});
				if (pos==sz || shit[pos]!=pii(xx, yy)) continue ;
				vector<int> vec=mp[pos], v2;
				for (int j:vec){
					if (check(id, j)) ans[j]=id;
					else v2.pb(j);
				}
				mp[pos]=v2;
			}
	}
	for (int i=1; i<=n; i++) cout<<ans[i]<<' ';
	
	return 0;
}
/*
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 9 ms 7424 KB Output is correct
2 Correct 9 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct
5 Correct 10 ms 7424 KB Output is correct
6 Correct 9 ms 7424 KB Output is correct
7 Correct 8 ms 7424 KB Output is correct
8 Correct 10 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7424 KB Output is correct
11 Correct 9 ms 7424 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 9 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 9 ms 7424 KB Output is correct
17 Correct 9 ms 7424 KB Output is correct
18 Correct 11 ms 7424 KB Output is correct
19 Correct 12 ms 7808 KB Output is correct
20 Correct 12 ms 7808 KB Output is correct
21 Correct 12 ms 7808 KB Output is correct
22 Correct 22 ms 7936 KB Output is correct
23 Correct 25 ms 7808 KB Output is correct
24 Correct 23 ms 7936 KB Output is correct
25 Correct 22 ms 7936 KB Output is correct
26 Correct 23 ms 7936 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 208 ms 19536 KB Output is correct
2 Correct 222 ms 20724 KB Output is correct
3 Correct 210 ms 19352 KB Output is correct
4 Correct 201 ms 19556 KB Output is correct
5 Correct 275 ms 19960 KB Output is correct
6 Correct 650 ms 22776 KB Output is correct
7 Correct 327 ms 20728 KB Output is correct
8 Correct 394 ms 20984 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 426 ms 14328 KB Output is correct
3 Correct 1503 ms 27752 KB Output is correct
4 Correct 1474 ms 27624 KB Output is correct
5 Correct 1568 ms 26092 KB Output is correct
6 Correct 570 ms 17220 KB Output is correct
7 Correct 269 ms 12896 KB Output is correct
8 Correct 45 ms 8824 KB Output is correct
9 Correct 1753 ms 27452 KB Output is correct
10 Correct 1376 ms 33340 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1084 ms 27512 KB Output is correct
2 Correct 844 ms 27480 KB Output is correct
3 Correct 385 ms 20984 KB Output is correct
4 Correct 876 ms 27384 KB Output is correct
5 Correct 911 ms 27440 KB Output is correct
6 Correct 303 ms 19704 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 9 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct
5 Correct 10 ms 7424 KB Output is correct
6 Correct 9 ms 7424 KB Output is correct
7 Correct 8 ms 7424 KB Output is correct
8 Correct 10 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7424 KB Output is correct
11 Correct 9 ms 7424 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 9 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 9 ms 7424 KB Output is correct
17 Correct 9 ms 7424 KB Output is correct
18 Correct 11 ms 7424 KB Output is correct
19 Correct 12 ms 7808 KB Output is correct
20 Correct 12 ms 7808 KB Output is correct
21 Correct 12 ms 7808 KB Output is correct
22 Correct 22 ms 7936 KB Output is correct
23 Correct 25 ms 7808 KB Output is correct
24 Correct 23 ms 7936 KB Output is correct
25 Correct 22 ms 7936 KB Output is correct
26 Correct 23 ms 7936 KB Output is correct
27 Correct 17 ms 8192 KB Output is correct
28 Correct 17 ms 8064 KB Output is correct
29 Correct 16 ms 8064 KB Output is correct
30 Correct 44 ms 8320 KB Output is correct
31 Correct 39 ms 8320 KB Output is correct
32 Correct 40 ms 8320 KB Output is correct
33 Correct 84 ms 11868 KB Output is correct
34 Correct 83 ms 11836 KB Output is correct
35 Correct 89 ms 11864 KB Output is correct
36 Correct 398 ms 14460 KB Output is correct
37 Correct 400 ms 14584 KB Output is correct
38 Correct 394 ms 14584 KB Output is correct
39 Correct 414 ms 15368 KB Output is correct
40 Correct 437 ms 15380 KB Output is correct
41 Correct 413 ms 15880 KB Output is correct
42 Correct 217 ms 14488 KB Output is correct
43 Correct 246 ms 14456 KB Output is correct
44 Correct 290 ms 14456 KB Output is correct
45 Correct 250 ms 14456 KB Output is correct
46 Correct 262 ms 14456 KB Output is correct
47 Correct 253 ms 14456 KB Output is correct
48 Correct 248 ms 14456 KB Output is correct
49 Correct 247 ms 14456 KB Output is correct
50 Correct 253 ms 14504 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 9 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct
5 Correct 10 ms 7424 KB Output is correct
6 Correct 9 ms 7424 KB Output is correct
7 Correct 8 ms 7424 KB Output is correct
8 Correct 10 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7424 KB Output is correct
11 Correct 9 ms 7424 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7424 KB Output is correct
14 Correct 9 ms 7424 KB Output is correct
15 Correct 9 ms 7424 KB Output is correct
16 Correct 9 ms 7424 KB Output is correct
17 Correct 9 ms 7424 KB Output is correct
18 Correct 11 ms 7424 KB Output is correct
19 Correct 12 ms 7808 KB Output is correct
20 Correct 12 ms 7808 KB Output is correct
21 Correct 12 ms 7808 KB Output is correct
22 Correct 22 ms 7936 KB Output is correct
23 Correct 25 ms 7808 KB Output is correct
24 Correct 23 ms 7936 KB Output is correct
25 Correct 22 ms 7936 KB Output is correct
26 Correct 23 ms 7936 KB Output is correct
27 Correct 208 ms 19536 KB Output is correct
28 Correct 222 ms 20724 KB Output is correct
29 Correct 210 ms 19352 KB Output is correct
30 Correct 201 ms 19556 KB Output is correct
31 Correct 275 ms 19960 KB Output is correct
32 Correct 650 ms 22776 KB Output is correct
33 Correct 327 ms 20728 KB Output is correct
34 Correct 394 ms 20984 KB Output is correct
35 Correct 9 ms 7424 KB Output is correct
36 Correct 426 ms 14328 KB Output is correct
37 Correct 1503 ms 27752 KB Output is correct
38 Correct 1474 ms 27624 KB Output is correct
39 Correct 1568 ms 26092 KB Output is correct
40 Correct 570 ms 17220 KB Output is correct
41 Correct 269 ms 12896 KB Output is correct
42 Correct 45 ms 8824 KB Output is correct
43 Correct 1753 ms 27452 KB Output is correct
44 Correct 1376 ms 33340 KB Output is correct
45 Correct 1084 ms 27512 KB Output is correct
46 Correct 844 ms 27480 KB Output is correct
47 Correct 385 ms 20984 KB Output is correct
48 Correct 876 ms 27384 KB Output is correct
49 Correct 911 ms 27440 KB Output is correct
50 Correct 303 ms 19704 KB Output is correct
51 Correct 17 ms 8192 KB Output is correct
52 Correct 17 ms 8064 KB Output is correct
53 Correct 16 ms 8064 KB Output is correct
54 Correct 44 ms 8320 KB Output is correct
55 Correct 39 ms 8320 KB Output is correct
56 Correct 40 ms 8320 KB Output is correct
57 Correct 84 ms 11868 KB Output is correct
58 Correct 83 ms 11836 KB Output is correct
59 Correct 89 ms 11864 KB Output is correct
60 Correct 398 ms 14460 KB Output is correct
61 Correct 400 ms 14584 KB Output is correct
62 Correct 394 ms 14584 KB Output is correct
63 Correct 414 ms 15368 KB Output is correct
64 Correct 437 ms 15380 KB Output is correct
65 Correct 413 ms 15880 KB Output is correct
66 Correct 217 ms 14488 KB Output is correct
67 Correct 246 ms 14456 KB Output is correct
68 Correct 290 ms 14456 KB Output is correct
69 Correct 250 ms 14456 KB Output is correct
70 Correct 262 ms 14456 KB Output is correct
71 Correct 253 ms 14456 KB Output is correct
72 Correct 248 ms 14456 KB Output is correct
73 Correct 247 ms 14456 KB Output is correct
74 Correct 253 ms 14504 KB Output is correct
75 Correct 277 ms 28332 KB Output is correct
76 Correct 239 ms 28108 KB Output is correct
77 Correct 232 ms 28476 KB Output is correct
78 Correct 230 ms 27988 KB Output is correct
79 Correct 312 ms 28408 KB Output is correct
80 Correct 241 ms 27728 KB Output is correct
81 Correct 1457 ms 35124 KB Output is correct
82 Correct 1452 ms 34840 KB Output is correct
83 Correct 1417 ms 34744 KB Output is correct
84 Correct 1491 ms 35308 KB Output is correct
85 Correct 1435 ms 35000 KB Output is correct
86 Correct 1491 ms 35068 KB Output is correct
87 Correct 1559 ms 34936 KB Output is correct
88 Correct 1285 ms 33268 KB Output is correct
89 Correct 1401 ms 35440 KB Output is correct
90 Correct 1343 ms 35404 KB Output is correct
91 Correct 1306 ms 33380 KB Output is correct
92 Correct 1182 ms 33280 KB Output is correct
93 Correct 1132 ms 34040 KB Output is correct
94 Correct 1256 ms 34312 KB Output is correct
95 Correct 1161 ms 34040 KB Output is correct
96 Correct 1182 ms 34092 KB Output is correct
97 Correct 1437 ms 33912 KB Output is correct
98 Correct 803 ms 30840 KB Output is correct
99 Correct 1236 ms 34040 KB Output is correct
100 Correct 971 ms 33808 KB Output is correct
101 Correct 1063 ms 32380 KB Output is correct
102 Correct 1238 ms 33784 KB Output is correct
103 Correct 1425 ms 33852 KB Output is correct
104 Correct 1261 ms 33720 KB Output is correct
105 Correct 734 ms 31636 KB Output is correct
106 Correct 874 ms 34296 KB Output is correct
107 Correct 853 ms 34116 KB Output is correct
108 Correct 856 ms 34144 KB Output is correct
109 Correct 859 ms 34296 KB Output is correct
110 Correct 825 ms 34200 KB Output is correct
111 Correct 851 ms 34168 KB Output is correct
112 Correct 819 ms 34380 KB Output is correct
113 Correct 844 ms 34304 KB Output is correct
114 Correct 827 ms 34168 KB Output is correct
115 Correct 830 ms 34424 KB Output is correct
116 Correct 787 ms 34136 KB Output is correct