oj.uz

Submission #110206

# Submission time Handle Problem Language Result Execution time Memory
110206 2019-05-10T07:43:02 Z baluteshih Circle selection (APIO18_circle_selection) C++14
100 / 100
 1469 ms 56840 KB 
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define jizz ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define pb push_back
#define MP make_pair
#define F first
#define S second
#define ET cout << "\n"
#define MEM(i,j) memset(i,j,sizeof i)
#define ALL(v) v.begin(),v.end()
#define DB(a,s,e) {for(int i=s;i<e;++i) cerr << a[i] << " ";ET;}
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
 
ll ans[300005],x[300005],y[300005],r[300005],arr[300005],arr2[300005],rmlog,n;
vector<vector<ll>> v;
const ll C=1e9;
 
bool intersect(ll a,ll b)
{
	return (x[a]-x[b])*(x[a]-x[b])+(y[a]-y[b])*(y[a]-y[b])<=(r[a]+r[b])*(r[a]+r[b]);
}
 
void split()
{
	--rmlog;
	vector<vector<ll>> tmp;
	for(auto &tv:v)
	{
		vector<ll> sp[2];
		for(auto &i:tv)
			if(!ans[i])
				sp[x[i]>>rmlog&1].pb(i);
		if(sp[0].size()) tmp.pb(sp[0]);
		if(sp[1].size()) tmp.pb(sp[1]);
	}
	v.swap(tmp);
}
 
int main()
{
	cin >> n;
	for(int i=1;i<=n;++i)
		cin >> x[i] >> y[i] >> r[i],x[i]+=C,y[i]+=C,arr2[i]=arr[i]=i,rmlog=max(rmlog,__lg(r[i])+1);
	sort(arr+1,arr+n+1,[&](ll a,ll b){return x[a]>>rmlog==x[b]>>rmlog?y[a]<y[b]:x[a]>>rmlog<x[b]>>rmlog;});
	sort(arr2+1,arr2+n+1,[&](ll a,ll b){return r[a]==r[b]?a<b:r[a]>r[b];});
	for(int i=1;i<=n;++i)
		if(v.empty()||x[v.back()[0]]>>rmlog!=x[arr[i]]>>rmlog)
			v.pb(vector<ll>(1,arr[i]));
		else
			v.back().pb(arr[i]);
	for(int i=1;i<=n;++i)
	{
		int cur=arr2[i],L,R;
		if(ans[cur]) continue;
		while(r[cur]<<1<=1<<rmlog)
			split();
		for(L=0,R=v.size();L<R;)
		{
			int m=L+R>>1;
			if((x[v[m][0]]>>rmlog)+2>=x[cur]>>rmlog) R=m;
			else L=m+1;
		}
		for(int j=L;j<v.size()&&x[v[j][0]]>>rmlog<=(x[cur]>>rmlog)+2;++j)
		{
			int lf=0,ri=v[j].size();
			while(lf<ri)
			{
				int m=lf+ri>>1;
				if(y[v[j][m]]>=y[cur]-r[cur]*2) ri=m;
				else lf=m+1;
			}
			for(int k=lf;k<v[j].size()&&y[v[j][k]]<=y[cur]+r[cur]*2;++k)
				if(!ans[v[j][k]]&&intersect(v[j][k],cur))
					ans[v[j][k]]=cur;
		}
	}
	for(int i=1;i<=n;++i)
		cout << ans[i] << " \n"[i==n];
}

Compilation message

circle_selection.cpp: In function 'int main()':
circle_selection.cpp:62:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int m=L+R>>1;
          ~^~
circle_selection.cpp:66:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=L;j<v.size()&&x[v[j][0]]>>rmlog<=(x[cur]>>rmlog)+2;++j)
               ~^~~~~~~~~
circle_selection.cpp:71:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int m=lf+ri>>1;
           ~~^~~
circle_selection.cpp:75:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int k=lf;k<v[j].size()&&y[v[j][k]]<=y[cur]+r[cur]*2;++k)
                 ~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 42 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 13 ms 768 KB Output is correct
20 Correct 12 ms 768 KB Output is correct
21 Correct 13 ms 896 KB Output is correct
22 Correct 14 ms 1024 KB Output is correct
23 Correct 13 ms 896 KB Output is correct
24 Correct 14 ms 1124 KB Output is correct
25 Correct 13 ms 1152 KB Output is correct
26 Correct 15 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 528 ms 18616 KB Output is correct
2 Correct 629 ms 17816 KB Output is correct
3 Correct 516 ms 19548 KB Output is correct
4 Correct 518 ms 17384 KB Output is correct
5 Correct 605 ms 20216 KB Output is correct
6 Correct 791 ms 26020 KB Output is correct
7 Correct 449 ms 21068 KB Output is correct
8 Correct 537 ms 21332 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 288 ms 8420 KB Output is correct
3 Correct 1139 ms 30440 KB Output is correct
4 Correct 976 ms 30508 KB Output is correct
5 Correct 773 ms 28732 KB Output is correct
6 Correct 367 ms 16356 KB Output is correct
7 Correct 166 ms 8824 KB Output is correct
8 Correct 33 ms 2424 KB Output is correct
9 Correct 1195 ms 30308 KB Output is correct
10 Correct 827 ms 30400 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 985 ms 21916 KB Output is correct
2 Correct 1035 ms 50268 KB Output is correct
3 Correct 618 ms 18936 KB Output is correct
4 Correct 1041 ms 33024 KB Output is correct
5 Correct 901 ms 33044 KB Output is correct
6 Correct 627 ms 18864 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 42 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 13 ms 768 KB Output is correct
20 Correct 12 ms 768 KB Output is correct
21 Correct 13 ms 896 KB Output is correct
22 Correct 14 ms 1024 KB Output is correct
23 Correct 13 ms 896 KB Output is correct
24 Correct 14 ms 1124 KB Output is correct
25 Correct 13 ms 1152 KB Output is correct
26 Correct 15 ms 1152 KB Output is correct
27 Correct 20 ms 1272 KB Output is correct
28 Correct 22 ms 1272 KB Output is correct
29 Correct 19 ms 1280 KB Output is correct
30 Correct 29 ms 1400 KB Output is correct
31 Correct 24 ms 1784 KB Output is correct
32 Correct 31 ms 1792 KB Output is correct
33 Correct 226 ms 9680 KB Output is correct
34 Correct 245 ms 9788 KB Output is correct
35 Correct 199 ms 9004 KB Output is correct
36 Correct 257 ms 12924 KB Output is correct
37 Correct 299 ms 12148 KB Output is correct
38 Correct 309 ms 11252 KB Output is correct
39 Correct 275 ms 9448 KB Output is correct
40 Correct 228 ms 9444 KB Output is correct
41 Correct 259 ms 9800 KB Output is correct
42 Correct 133 ms 8440 KB Output is correct
43 Correct 205 ms 13484 KB Output is correct
44 Correct 220 ms 13600 KB Output is correct
45 Correct 192 ms 13604 KB Output is correct
46 Correct 266 ms 13600 KB Output is correct
47 Correct 251 ms 13600 KB Output is correct
48 Correct 265 ms 13732 KB Output is correct
49 Correct 256 ms 13580 KB Output is correct
50 Correct 200 ms 13604 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 42 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 13 ms 768 KB Output is correct
20 Correct 12 ms 768 KB Output is correct
21 Correct 13 ms 896 KB Output is correct
22 Correct 14 ms 1024 KB Output is correct
23 Correct 13 ms 896 KB Output is correct
24 Correct 14 ms 1124 KB Output is correct
25 Correct 13 ms 1152 KB Output is correct
26 Correct 15 ms 1152 KB Output is correct
27 Correct 528 ms 18616 KB Output is correct
28 Correct 629 ms 17816 KB Output is correct
29 Correct 516 ms 19548 KB Output is correct
30 Correct 518 ms 17384 KB Output is correct
31 Correct 605 ms 20216 KB Output is correct
32 Correct 791 ms 26020 KB Output is correct
33 Correct 449 ms 21068 KB Output is correct
34 Correct 537 ms 21332 KB Output is correct
35 Correct 3 ms 384 KB Output is correct
36 Correct 288 ms 8420 KB Output is correct
37 Correct 1139 ms 30440 KB Output is correct
38 Correct 976 ms 30508 KB Output is correct
39 Correct 773 ms 28732 KB Output is correct
40 Correct 367 ms 16356 KB Output is correct
41 Correct 166 ms 8824 KB Output is correct
42 Correct 33 ms 2424 KB Output is correct
43 Correct 1195 ms 30308 KB Output is correct
44 Correct 827 ms 30400 KB Output is correct
45 Correct 985 ms 21916 KB Output is correct
46 Correct 1035 ms 50268 KB Output is correct
47 Correct 618 ms 18936 KB Output is correct
48 Correct 1041 ms 33024 KB Output is correct
49 Correct 901 ms 33044 KB Output is correct
50 Correct 627 ms 18864 KB Output is correct
51 Correct 20 ms 1272 KB Output is correct
52 Correct 22 ms 1272 KB Output is correct
53 Correct 19 ms 1280 KB Output is correct
54 Correct 29 ms 1400 KB Output is correct
55 Correct 24 ms 1784 KB Output is correct
56 Correct 31 ms 1792 KB Output is correct
57 Correct 226 ms 9680 KB Output is correct
58 Correct 245 ms 9788 KB Output is correct
59 Correct 199 ms 9004 KB Output is correct
60 Correct 257 ms 12924 KB Output is correct
61 Correct 299 ms 12148 KB Output is correct
62 Correct 309 ms 11252 KB Output is correct
63 Correct 275 ms 9448 KB Output is correct
64 Correct 228 ms 9444 KB Output is correct
65 Correct 259 ms 9800 KB Output is correct
66 Correct 133 ms 8440 KB Output is correct
67 Correct 205 ms 13484 KB Output is correct
68 Correct 220 ms 13600 KB Output is correct
69 Correct 192 ms 13604 KB Output is correct
70 Correct 266 ms 13600 KB Output is correct
71 Correct 251 ms 13600 KB Output is correct
72 Correct 265 ms 13732 KB Output is correct
73 Correct 256 ms 13580 KB Output is correct
74 Correct 200 ms 13604 KB Output is correct
75 Correct 714 ms 27412 KB Output is correct
76 Correct 630 ms 25736 KB Output is correct
77 Correct 665 ms 28852 KB Output is correct
78 Correct 640 ms 27872 KB Output is correct
79 Correct 636 ms 25772 KB Output is correct
80 Correct 629 ms 27868 KB Output is correct
81 Correct 956 ms 31900 KB Output is correct
82 Correct 954 ms 32548 KB Output is correct
83 Correct 1106 ms 34716 KB Output is correct
84 Correct 1138 ms 30308 KB Output is correct
85 Correct 1087 ms 31732 KB Output is correct
86 Correct 1102 ms 32936 KB Output is correct
87 Correct 1065 ms 27512 KB Output is correct
88 Correct 1461 ms 29564 KB Output is correct
89 Correct 1469 ms 29748 KB Output is correct
90 Correct 1324 ms 29104 KB Output is correct
91 Correct 1154 ms 29152 KB Output is correct
92 Correct 1420 ms 29116 KB Output is correct
93 Correct 934 ms 50164 KB Output is correct
94 Correct 763 ms 27016 KB Output is correct
95 Correct 851 ms 51464 KB Output is correct
96 Correct 941 ms 55560 KB Output is correct
97 Correct 843 ms 27512 KB Output is correct
98 Correct 794 ms 34008 KB Output is correct
99 Correct 1039 ms 49672 KB Output is correct
100 Correct 1036 ms 56840 KB Output is correct
101 Correct 915 ms 30476 KB Output is correct
102 Correct 1042 ms 48392 KB Output is correct
103 Correct 977 ms 28104 KB Output is correct
104 Correct 1040 ms 48780 KB Output is correct
105 Correct 488 ms 25080 KB Output is correct
106 Correct 891 ms 37024 KB Output is correct
107 Correct 858 ms 37144 KB Output is correct
108 Correct 1002 ms 37128 KB Output is correct
109 Correct 789 ms 36996 KB Output is correct
110 Correct 772 ms 37048 KB Output is correct
111 Correct 815 ms 37016 KB Output is correct
112 Correct 883 ms 37080 KB Output is correct
113 Correct 770 ms 37092 KB Output is correct
114 Correct 857 ms 36988 KB Output is correct
115 Correct 873 ms 37144 KB Output is correct
116 Correct 981 ms 40576 KB Output is correct