oj.uz

Submission #169771

# Submission time Handle Problem Language Result Execution time Memory
169771 2019-12-22T19:35:16 Z ZwariowanyMarcin Circle selection (APIO18_circle_selection) C++14
100 / 100
 1120 ms 22424 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define ss(x) (int) x.size()
#define pb push_back
#define ll long long
#define cat(x) cerr << #x << " = " << x << endl
#define FOR(i, n) for(int i = 0; i < n; ++i)

using namespace std;	

const int INF = 2e9;

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

bool inter(circle &a, circle &b) {
	return 1ll * (a.x - b.x) * (a.x - b.x) + 1ll * (a.y - b.y) * (a.y - b.y) <= 1ll * (a.r + b.r) * (a.r + b.r);
}

struct gao {
	int X, Y, ID;
	gao(int X, int Y, int ID) : X(X), Y(Y), ID(ID) {}
	bool operator < (gao a) {
		return mp(X, Y) < mp(a.X, a.Y);
	} 
};
vector <gao> V;

int n;
circle t[300005];
int cur = INF;
vector <int> v;
int ans[300005];

void go() {
	V.clear();
	for(int i = 1; i <= n; ++i) {
		if(ans[i]) continue;
		V.pb({t[i].x / cur, t[i].y / cur, i});
	}
	sort(V.begin(), V.end());
}

vector <int> wywal;

inline void solve(const int &x, const int &y, const int &id) {
	auto it = lower_bound(V.begin(), V.end(), gao(x, y, -1));
	while(it != V.end() && it->X == x && it->Y == y) {
		if(ans[it->ID]) {
			it++;
			continue;
		}
		//cat(id);
		//cat(it->ID);
		if(inter(t[id], t[it->ID]))
			ans[it->ID] = id;
		it++;
	}	
}
		
int main() {
	scanf("%d", &n);
	for(int i = 1; i <= n; ++i) {
		scanf("%d %d %d", &t[i].x, &t[i].y, &t[i].r);
		t[i].x += 1000000000;
		t[i].y += 1000000000;
		v.pb(i);
	}
	
	sort(v.begin(), v.end(), [](int a, int b) {
		if(t[a].r != t[b].r)
			return t[a].r < t[b].r;
		return a > b;
	});
	
	go();
	for(int i = n - 1; 0 <= i; --i) {
		int ja = v[i];
		if(!ans[ja]) {
			if(2 * t[ja].r < cur) {
				cur = t[ja].r;
				go();
			}
			for(int x = t[ja].x / cur - 2; x <= t[ja].x / cur + 2; ++x)
				for(int y = t[ja].y / cur - 2; y <= t[ja].y / cur + 2; ++y)
					solve(x, y, ja);
		}
	}
				
	for(int i = 1; i <= n; ++i)
		printf("%d ", 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
*/

Compilation message

circle_selection.cpp: In function 'int main()':
circle_selection.cpp:65:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
circle_selection.cpp:67:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &t[i].x, &t[i].y, &t[i].r);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 372 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 6 ms 632 KB Output is correct
20 Correct 6 ms 632 KB Output is correct
21 Correct 6 ms 628 KB Output is correct
22 Correct 15 ms 632 KB Output is correct
23 Correct 15 ms 636 KB Output is correct
24 Correct 15 ms 604 KB Output is correct
25 Correct 14 ms 760 KB Output is correct
26 Correct 14 ms 632 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 245 ms 13400 KB Output is correct
2 Correct 248 ms 13388 KB Output is correct
3 Correct 248 ms 13148 KB Output is correct
4 Correct 245 ms 13396 KB Output is correct
5 Correct 253 ms 13280 KB Output is correct
6 Correct 505 ms 13272 KB Output is correct
7 Correct 274 ms 13272 KB Output is correct
8 Correct 315 ms 13268 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 337 ms 4496 KB Output is correct
3 Correct 1106 ms 13364 KB Output is correct
4 Correct 1096 ms 21404 KB Output is correct
5 Correct 940 ms 21168 KB Output is correct
6 Correct 379 ms 11312 KB Output is correct
7 Correct 197 ms 6044 KB Output is correct
8 Correct 35 ms 1644 KB Output is correct
9 Correct 1111 ms 21456 KB Output is correct
10 Correct 801 ms 21720 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1000 ms 13444 KB Output is correct
2 Correct 846 ms 20408 KB Output is correct
3 Correct 314 ms 21212 KB Output is correct
4 Correct 884 ms 20780 KB Output is correct
5 Correct 871 ms 21080 KB Output is correct
6 Correct 264 ms 21372 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 372 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 6 ms 632 KB Output is correct
20 Correct 6 ms 632 KB Output is correct
21 Correct 6 ms 628 KB Output is correct
22 Correct 15 ms 632 KB Output is correct
23 Correct 15 ms 636 KB Output is correct
24 Correct 15 ms 604 KB Output is correct
25 Correct 14 ms 760 KB Output is correct
26 Correct 14 ms 632 KB Output is correct
27 Correct 10 ms 872 KB Output is correct
28 Correct 10 ms 876 KB Output is correct
29 Correct 10 ms 1000 KB Output is correct
30 Correct 30 ms 872 KB Output is correct
31 Correct 28 ms 1000 KB Output is correct
32 Correct 29 ms 872 KB Output is correct
33 Correct 87 ms 4456 KB Output is correct
34 Correct 89 ms 4592 KB Output is correct
35 Correct 93 ms 4420 KB Output is correct
36 Correct 321 ms 4448 KB Output is correct
37 Correct 320 ms 4420 KB Output is correct
38 Correct 325 ms 4456 KB Output is correct
39 Correct 279 ms 4456 KB Output is correct
40 Correct 270 ms 4412 KB Output is correct
41 Correct 269 ms 4580 KB Output is correct
42 Correct 137 ms 4328 KB Output is correct
43 Correct 240 ms 4460 KB Output is correct
44 Correct 236 ms 4460 KB Output is correct
45 Correct 236 ms 4456 KB Output is correct
46 Correct 236 ms 4456 KB Output is correct
47 Correct 236 ms 4440 KB Output is correct
48 Correct 237 ms 4456 KB Output is correct
49 Correct 237 ms 4516 KB Output is correct
50 Correct 236 ms 4480 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 372 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 6 ms 632 KB Output is correct
20 Correct 6 ms 632 KB Output is correct
21 Correct 6 ms 628 KB Output is correct
22 Correct 15 ms 632 KB Output is correct
23 Correct 15 ms 636 KB Output is correct
24 Correct 15 ms 604 KB Output is correct
25 Correct 14 ms 760 KB Output is correct
26 Correct 14 ms 632 KB Output is correct
27 Correct 245 ms 13400 KB Output is correct
28 Correct 248 ms 13388 KB Output is correct
29 Correct 248 ms 13148 KB Output is correct
30 Correct 245 ms 13396 KB Output is correct
31 Correct 253 ms 13280 KB Output is correct
32 Correct 505 ms 13272 KB Output is correct
33 Correct 274 ms 13272 KB Output is correct
34 Correct 315 ms 13268 KB Output is correct
35 Correct 2 ms 252 KB Output is correct
36 Correct 337 ms 4496 KB Output is correct
37 Correct 1106 ms 13364 KB Output is correct
38 Correct 1096 ms 21404 KB Output is correct
39 Correct 940 ms 21168 KB Output is correct
40 Correct 379 ms 11312 KB Output is correct
41 Correct 197 ms 6044 KB Output is correct
42 Correct 35 ms 1644 KB Output is correct
43 Correct 1111 ms 21456 KB Output is correct
44 Correct 801 ms 21720 KB Output is correct
45 Correct 1000 ms 13444 KB Output is correct
46 Correct 846 ms 20408 KB Output is correct
47 Correct 314 ms 21212 KB Output is correct
48 Correct 884 ms 20780 KB Output is correct
49 Correct 871 ms 21080 KB Output is correct
50 Correct 264 ms 21372 KB Output is correct
51 Correct 10 ms 872 KB Output is correct
52 Correct 10 ms 876 KB Output is correct
53 Correct 10 ms 1000 KB Output is correct
54 Correct 30 ms 872 KB Output is correct
55 Correct 28 ms 1000 KB Output is correct
56 Correct 29 ms 872 KB Output is correct
57 Correct 87 ms 4456 KB Output is correct
58 Correct 89 ms 4592 KB Output is correct
59 Correct 93 ms 4420 KB Output is correct
60 Correct 321 ms 4448 KB Output is correct
61 Correct 320 ms 4420 KB Output is correct
62 Correct 325 ms 4456 KB Output is correct
63 Correct 279 ms 4456 KB Output is correct
64 Correct 270 ms 4412 KB Output is correct
65 Correct 269 ms 4580 KB Output is correct
66 Correct 137 ms 4328 KB Output is correct
67 Correct 240 ms 4460 KB Output is correct
68 Correct 236 ms 4460 KB Output is correct
69 Correct 236 ms 4456 KB Output is correct
70 Correct 236 ms 4456 KB Output is correct
71 Correct 236 ms 4440 KB Output is correct
72 Correct 237 ms 4456 KB Output is correct
73 Correct 237 ms 4516 KB Output is correct
74 Correct 236 ms 4480 KB Output is correct
75 Correct 281 ms 22400 KB Output is correct
76 Correct 274 ms 22228 KB Output is correct
77 Correct 267 ms 22424 KB Output is correct
78 Correct 274 ms 22272 KB Output is correct
79 Correct 313 ms 22048 KB Output is correct
80 Correct 275 ms 22248 KB Output is correct
81 Correct 1085 ms 21464 KB Output is correct
82 Correct 1106 ms 21160 KB Output is correct
83 Correct 1080 ms 21216 KB Output is correct
84 Correct 1104 ms 21672 KB Output is correct
85 Correct 1075 ms 21332 KB Output is correct
86 Correct 1076 ms 21304 KB Output is correct
87 Correct 1120 ms 21432 KB Output is correct
88 Correct 939 ms 16608 KB Output is correct
89 Correct 924 ms 16488 KB Output is correct
90 Correct 922 ms 16624 KB Output is correct
91 Correct 900 ms 16620 KB Output is correct
92 Correct 910 ms 16576 KB Output is correct
93 Correct 933 ms 20184 KB Output is correct
94 Correct 876 ms 20952 KB Output is correct
95 Correct 936 ms 20308 KB Output is correct
96 Correct 943 ms 20184 KB Output is correct
97 Correct 1090 ms 20108 KB Output is correct
98 Correct 606 ms 20568 KB Output is correct
99 Correct 1016 ms 20380 KB Output is correct
100 Correct 877 ms 20308 KB Output is correct
101 Correct 762 ms 20708 KB Output is correct
102 Correct 1008 ms 20384 KB Output is correct
103 Correct 1022 ms 20240 KB Output is correct
104 Correct 975 ms 20180 KB Output is correct
105 Correct 469 ms 18024 KB Output is correct
106 Correct 721 ms 21084 KB Output is correct
107 Correct 725 ms 21032 KB Output is correct
108 Correct 721 ms 21212 KB Output is correct
109 Correct 725 ms 21036 KB Output is correct
110 Correct 719 ms 21076 KB Output is correct
111 Correct 724 ms 21212 KB Output is correct
112 Correct 720 ms 21144 KB Output is correct
113 Correct 726 ms 21208 KB Output is correct
114 Correct 725 ms 21080 KB Output is correct
115 Correct 726 ms 20948 KB Output is correct
116 Correct 696 ms 21028 KB Output is correct