답안 #427778

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
427778	2021-06-14T22:20:04 Z	amoo_safar	IOI 바이러스 (JOI21_fever)	C++17	25 / 100	5000 ms	7620 KB

fever

#include<bits/stdc++.h>

#define F first
#define S second
#define pb push_back
#define all(x) x.begin(), x.end()

using namespace std;

typedef pair<int, int> pii;

const int N = 1e5 + 10;
const int Inf = 1'000'000'010;

int n;
int x[N], y[N];
int dir[N];
pii vec[] = {{1, 0}, {0, -1}, {-1, 0}, {0, 1}};

set< pair<int, int> > st; // time, id
int mk[N];


int Collision(int a, int b){
	if(x[a] > x[b]) swap(a, b);

	int dp_a = x[a] + y[a];
	int dp_b = x[b] + y[b];
	int dn_a = x[a] - y[a];
	int dn_b = x[b] - y[b];
	if(dp_a != dp_b && dn_a != dn_b)
		return Inf;
	int d = abs(x[a] - x[b]);
	if(dp_a == dp_b){
		if((dir[a] == 0 && dir[b] == 3) || (dir[a] == 1 && dir[b] == 2))
			return d;
		return Inf;
	} 
	if((dir[a] == 0 && dir[b] == 1) || (dir[a] == 3 && dir[b] == 2))
		return d;
	return Inf;
}

void Infect(int u, int tm){
	mk[u] = 1;
	for(int i = 0; i < n; i++){
		if(mk[i]) continue;
		int ds = Collision(u, i);
		if(ds >= tm && ds != Inf){
			st.insert({ds, i});
		}
	}
}

int Solve(){
	dir[0] = 0;
	for(int i = 1; i < n; i++){
		int X = abs(x[i] - x[0]);
		int Y = abs(y[i] - y[0]);
		if(X == Y){
			if(x[i] < x[0]) dir[i] = 0;
			else dir[i] = y[i] < y[0] ? 3 : 1;
		} else {
			if(X > Y){
				if( x[i] < x[0]) dir[i] = 0;
				else dir[i] = 2;
			} else {
				if( y[i] < y[0]) dir[i] = 3;
				else dir[i] = 1;
			}
		}
	}
	// cerr << "!! " ;
	// for(int i = 0; i < n; i++){
	// 	cerr << dir[i] << ' ';
	// }
	// cerr << '\n';
	memset(mk, 0, sizeof mk);
	st.insert({0, 0});
	while(!st.empty()){
		int fr = st.begin() -> S;
		int tm = st.begin() -> F;
		st.erase(st.begin());
		Infect(fr, tm);
	}


	int res = 0;
	for(int i = 0; i < n; i++)
		res += mk[i];
	return res;
}


int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n;
	for(int i = 0; i < n; i++)
		cin >> x[i] >> y[i];
	
	int ans = 0;
	for(int _ = 0; _ < 4; _++){
		ans = max(ans, Solve());
		for(int i = 0; i < n; i++){
			int _x = x[i];
			x[i] = -y[i];
			y[i] = _x;
		}
		// break;
	}
	cout << ans << '\n';
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	716 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct
9	Correct	1 ms	716 KB	Output is correct
10	Correct	1 ms	768 KB	Output is correct
11	Correct	1 ms	712 KB	Output is correct
12	Correct	1 ms	716 KB	Output is correct
13	Correct	1 ms	716 KB	Output is correct
14	Correct	1 ms	716 KB	Output is correct
15	Correct	1 ms	716 KB	Output is correct
16	Correct	1 ms	716 KB	Output is correct
17	Correct	1 ms	704 KB	Output is correct
18	Correct	1 ms	716 KB	Output is correct
19	Correct	1 ms	712 KB	Output is correct
20	Correct	1 ms	716 KB	Output is correct
21	Correct	1 ms	716 KB	Output is correct
22	Correct	1 ms	716 KB	Output is correct
23	Correct	1 ms	716 KB	Output is correct
24	Correct	1 ms	716 KB	Output is correct
25	Correct	1 ms	716 KB	Output is correct
26	Correct	1 ms	716 KB	Output is correct
27	Correct	1 ms	716 KB	Output is correct
28	Correct	1 ms	716 KB	Output is correct
29	Correct	1 ms	716 KB	Output is correct
30	Correct	1 ms	716 KB	Output is correct
31	Correct	1 ms	708 KB	Output is correct
32	Correct	1 ms	808 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	716 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct
9	Correct	1 ms	716 KB	Output is correct
10	Correct	1 ms	768 KB	Output is correct
11	Correct	1 ms	712 KB	Output is correct
12	Correct	1 ms	716 KB	Output is correct
13	Correct	1 ms	716 KB	Output is correct
14	Correct	1 ms	716 KB	Output is correct
15	Correct	1 ms	716 KB	Output is correct
16	Correct	1 ms	716 KB	Output is correct
17	Correct	1 ms	704 KB	Output is correct
18	Correct	1 ms	716 KB	Output is correct
19	Correct	1 ms	712 KB	Output is correct
20	Correct	1 ms	716 KB	Output is correct
21	Correct	1 ms	716 KB	Output is correct
22	Correct	1 ms	716 KB	Output is correct
23	Correct	1 ms	716 KB	Output is correct
24	Correct	1 ms	716 KB	Output is correct
25	Correct	1 ms	716 KB	Output is correct
26	Correct	1 ms	716 KB	Output is correct
27	Correct	1 ms	716 KB	Output is correct
28	Correct	1 ms	716 KB	Output is correct
29	Correct	1 ms	716 KB	Output is correct
30	Correct	1 ms	716 KB	Output is correct
31	Correct	1 ms	708 KB	Output is correct
32	Correct	1 ms	808 KB	Output is correct
33	Correct	1 ms	716 KB	Output is correct
34	Correct	1 ms	716 KB	Output is correct
35	Correct	1 ms	716 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	1 ms	716 KB	Output is correct
38	Correct	1 ms	716 KB	Output is correct
39	Correct	1 ms	716 KB	Output is correct
40	Correct	1 ms	716 KB	Output is correct
41	Correct	1 ms	716 KB	Output is correct
42	Correct	1 ms	712 KB	Output is correct
43	Correct	1 ms	716 KB	Output is correct
44	Correct	1 ms	716 KB	Output is correct
45	Correct	1 ms	716 KB	Output is correct

Subtask #3
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	712 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct

Subtask #4
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	716 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct
9	Correct	1 ms	716 KB	Output is correct
10	Correct	1 ms	768 KB	Output is correct
11	Correct	1 ms	712 KB	Output is correct
12	Correct	1 ms	716 KB	Output is correct
13	Correct	1 ms	716 KB	Output is correct
14	Correct	1 ms	716 KB	Output is correct
15	Correct	1 ms	716 KB	Output is correct
16	Correct	1 ms	716 KB	Output is correct
17	Correct	1 ms	704 KB	Output is correct
18	Correct	1 ms	716 KB	Output is correct
19	Correct	1 ms	712 KB	Output is correct
20	Correct	1 ms	716 KB	Output is correct
21	Correct	1 ms	716 KB	Output is correct
22	Correct	1 ms	716 KB	Output is correct
23	Correct	1 ms	716 KB	Output is correct
24	Correct	1 ms	716 KB	Output is correct
25	Correct	1 ms	716 KB	Output is correct
26	Correct	1 ms	716 KB	Output is correct
27	Correct	1 ms	716 KB	Output is correct
28	Correct	1 ms	716 KB	Output is correct
29	Correct	1 ms	716 KB	Output is correct
30	Correct	1 ms	716 KB	Output is correct
31	Correct	1 ms	708 KB	Output is correct
32	Correct	1 ms	808 KB	Output is correct
33	Correct	1 ms	716 KB	Output is correct
34	Correct	1 ms	716 KB	Output is correct
35	Correct	1 ms	716 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	1 ms	716 KB	Output is correct
38	Correct	1 ms	716 KB	Output is correct
39	Correct	1 ms	716 KB	Output is correct
40	Correct	1 ms	716 KB	Output is correct
41	Correct	1 ms	716 KB	Output is correct
42	Correct	1 ms	712 KB	Output is correct
43	Correct	1 ms	716 KB	Output is correct
44	Correct	1 ms	716 KB	Output is correct
45	Correct	1 ms	716 KB	Output is correct
46	Correct	1 ms	716 KB	Output is correct
47	Correct	1 ms	716 KB	Output is correct
48	Correct	1 ms	716 KB	Output is correct
49	Correct	1 ms	716 KB	Output is correct
50	Correct	1 ms	716 KB	Output is correct
51	Correct	1 ms	712 KB	Output is correct
52	Correct	1 ms	716 KB	Output is correct
53	Correct	1 ms	716 KB	Output is correct
54	Correct	1 ms	716 KB	Output is correct
55	Correct	1 ms	716 KB	Output is correct
56	Correct	1 ms	716 KB	Output is correct
57	Correct	1 ms	716 KB	Output is correct
58	Correct	12 ms	812 KB	Output is correct
59	Correct	2 ms	716 KB	Output is correct
60	Correct	1 ms	716 KB	Output is correct
61	Correct	1 ms	716 KB	Output is correct
62	Correct	1 ms	716 KB	Output is correct
63	Correct	1 ms	716 KB	Output is correct
64	Correct	1 ms	716 KB	Output is correct
65	Correct	1 ms	716 KB	Output is correct

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	716 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct
9	Correct	1 ms	716 KB	Output is correct
10	Correct	1 ms	768 KB	Output is correct
11	Correct	1 ms	712 KB	Output is correct
12	Correct	1 ms	716 KB	Output is correct
13	Correct	1 ms	716 KB	Output is correct
14	Correct	1 ms	716 KB	Output is correct
15	Correct	1 ms	716 KB	Output is correct
16	Correct	1 ms	716 KB	Output is correct
17	Correct	1 ms	704 KB	Output is correct
18	Correct	1 ms	716 KB	Output is correct
19	Correct	1 ms	712 KB	Output is correct
20	Correct	1 ms	716 KB	Output is correct
21	Correct	1 ms	716 KB	Output is correct
22	Correct	1 ms	716 KB	Output is correct
23	Correct	1 ms	716 KB	Output is correct
24	Correct	1 ms	716 KB	Output is correct
25	Correct	1 ms	716 KB	Output is correct
26	Correct	1 ms	716 KB	Output is correct
27	Correct	1 ms	716 KB	Output is correct
28	Correct	1 ms	716 KB	Output is correct
29	Correct	1 ms	716 KB	Output is correct
30	Correct	1 ms	716 KB	Output is correct
31	Correct	1 ms	708 KB	Output is correct
32	Correct	1 ms	808 KB	Output is correct
33	Correct	1 ms	716 KB	Output is correct
34	Correct	1 ms	716 KB	Output is correct
35	Correct	1 ms	716 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	1 ms	716 KB	Output is correct
38	Correct	1 ms	716 KB	Output is correct
39	Correct	1 ms	716 KB	Output is correct
40	Correct	1 ms	716 KB	Output is correct
41	Correct	1 ms	716 KB	Output is correct
42	Correct	1 ms	712 KB	Output is correct
43	Correct	1 ms	716 KB	Output is correct
44	Correct	1 ms	716 KB	Output is correct
45	Correct	1 ms	716 KB	Output is correct
46	Correct	1 ms	716 KB	Output is correct
47	Correct	1 ms	716 KB	Output is correct
48	Correct	1 ms	716 KB	Output is correct
49	Correct	1 ms	716 KB	Output is correct
50	Correct	1 ms	716 KB	Output is correct
51	Correct	1 ms	712 KB	Output is correct
52	Correct	1 ms	716 KB	Output is correct
53	Correct	1 ms	716 KB	Output is correct
54	Correct	1 ms	716 KB	Output is correct
55	Correct	1 ms	716 KB	Output is correct
56	Correct	1 ms	716 KB	Output is correct
57	Correct	1 ms	716 KB	Output is correct
58	Correct	12 ms	812 KB	Output is correct
59	Correct	2 ms	716 KB	Output is correct
60	Correct	1 ms	716 KB	Output is correct
61	Correct	1 ms	716 KB	Output is correct
62	Correct	1 ms	716 KB	Output is correct
63	Correct	1 ms	716 KB	Output is correct
64	Correct	1 ms	716 KB	Output is correct
65	Correct	1 ms	716 KB	Output is correct
66	Correct	2 ms	716 KB	Output is correct
67	Correct	2 ms	716 KB	Output is correct
68	Correct	2 ms	716 KB	Output is correct
69	Incorrect	851 ms	984 KB	Output isn't correct
70	Halted	0 ms	0 KB	-

Subtask #6
0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	716 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct
9	Correct	1 ms	716 KB	Output is correct
10	Correct	1 ms	768 KB	Output is correct
11	Correct	1 ms	712 KB	Output is correct
12	Correct	1 ms	716 KB	Output is correct
13	Correct	1 ms	716 KB	Output is correct
14	Correct	1 ms	716 KB	Output is correct
15	Correct	1 ms	716 KB	Output is correct
16	Correct	1 ms	716 KB	Output is correct
17	Correct	1 ms	704 KB	Output is correct
18	Correct	1 ms	716 KB	Output is correct
19	Correct	1 ms	712 KB	Output is correct
20	Correct	1 ms	716 KB	Output is correct
21	Correct	1 ms	716 KB	Output is correct
22	Correct	1 ms	716 KB	Output is correct
23	Correct	1 ms	716 KB	Output is correct
24	Correct	1 ms	716 KB	Output is correct
25	Correct	1 ms	716 KB	Output is correct
26	Correct	1 ms	716 KB	Output is correct
27	Correct	1 ms	716 KB	Output is correct
28	Correct	1 ms	716 KB	Output is correct
29	Correct	1 ms	716 KB	Output is correct
30	Correct	1 ms	716 KB	Output is correct
31	Correct	1 ms	708 KB	Output is correct
32	Correct	1 ms	808 KB	Output is correct
33	Correct	1 ms	716 KB	Output is correct
34	Correct	1 ms	716 KB	Output is correct
35	Correct	1 ms	716 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	1 ms	716 KB	Output is correct
38	Correct	1 ms	716 KB	Output is correct
39	Correct	1 ms	716 KB	Output is correct
40	Correct	1 ms	716 KB	Output is correct
41	Correct	1 ms	716 KB	Output is correct
42	Correct	1 ms	712 KB	Output is correct
43	Correct	1 ms	716 KB	Output is correct
44	Correct	1 ms	716 KB	Output is correct
45	Correct	1 ms	716 KB	Output is correct
46	Correct	1 ms	716 KB	Output is correct
47	Correct	1 ms	716 KB	Output is correct
48	Correct	1 ms	716 KB	Output is correct
49	Correct	1 ms	716 KB	Output is correct
50	Correct	1 ms	716 KB	Output is correct
51	Correct	1 ms	712 KB	Output is correct
52	Correct	1 ms	716 KB	Output is correct
53	Correct	1 ms	716 KB	Output is correct
54	Correct	1 ms	716 KB	Output is correct
55	Correct	1 ms	716 KB	Output is correct
56	Correct	1 ms	716 KB	Output is correct
57	Correct	1 ms	716 KB	Output is correct
58	Correct	12 ms	812 KB	Output is correct
59	Correct	2 ms	716 KB	Output is correct
60	Correct	1 ms	716 KB	Output is correct
61	Correct	1 ms	716 KB	Output is correct
62	Correct	1 ms	716 KB	Output is correct
63	Correct	1 ms	716 KB	Output is correct
64	Correct	1 ms	716 KB	Output is correct
65	Correct	1 ms	716 KB	Output is correct
66	Correct	30 ms	2452 KB	Output is correct
67	Correct	39 ms	3004 KB	Output is correct
68	Correct	34 ms	3708 KB	Output is correct
69	Execution timed out	5049 ms	7620 KB	Time limit exceeded
70	Halted	0 ms	0 KB	-

Subtask #7
0 / 31.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	716 KB	Output is correct
2	Correct	1 ms	716 KB	Output is correct
3	Correct	1 ms	716 KB	Output is correct
4	Correct	1 ms	716 KB	Output is correct
5	Correct	1 ms	716 KB	Output is correct
6	Correct	1 ms	716 KB	Output is correct
7	Correct	1 ms	716 KB	Output is correct
8	Correct	1 ms	716 KB	Output is correct
9	Correct	1 ms	716 KB	Output is correct
10	Correct	1 ms	768 KB	Output is correct
11	Correct	1 ms	712 KB	Output is correct
12	Correct	1 ms	716 KB	Output is correct
13	Correct	1 ms	716 KB	Output is correct
14	Correct	1 ms	716 KB	Output is correct
15	Correct	1 ms	716 KB	Output is correct
16	Correct	1 ms	716 KB	Output is correct
17	Correct	1 ms	704 KB	Output is correct
18	Correct	1 ms	716 KB	Output is correct
19	Correct	1 ms	712 KB	Output is correct
20	Correct	1 ms	716 KB	Output is correct
21	Correct	1 ms	716 KB	Output is correct
22	Correct	1 ms	716 KB	Output is correct
23	Correct	1 ms	716 KB	Output is correct
24	Correct	1 ms	716 KB	Output is correct
25	Correct	1 ms	716 KB	Output is correct
26	Correct	1 ms	716 KB	Output is correct
27	Correct	1 ms	716 KB	Output is correct
28	Correct	1 ms	716 KB	Output is correct
29	Correct	1 ms	716 KB	Output is correct
30	Correct	1 ms	716 KB	Output is correct
31	Correct	1 ms	708 KB	Output is correct
32	Correct	1 ms	808 KB	Output is correct
33	Correct	1 ms	716 KB	Output is correct
34	Correct	1 ms	716 KB	Output is correct
35	Correct	1 ms	716 KB	Output is correct
36	Correct	1 ms	716 KB	Output is correct
37	Correct	1 ms	716 KB	Output is correct
38	Correct	1 ms	716 KB	Output is correct
39	Correct	1 ms	716 KB	Output is correct
40	Correct	1 ms	716 KB	Output is correct
41	Correct	1 ms	716 KB	Output is correct
42	Correct	1 ms	712 KB	Output is correct
43	Correct	1 ms	716 KB	Output is correct
44	Correct	1 ms	716 KB	Output is correct
45	Correct	1 ms	716 KB	Output is correct
46	Correct	1 ms	716 KB	Output is correct
47	Correct	1 ms	716 KB	Output is correct
48	Correct	1 ms	716 KB	Output is correct
49	Correct	1 ms	716 KB	Output is correct
50	Correct	1 ms	716 KB	Output is correct
51	Correct	1 ms	712 KB	Output is correct
52	Correct	1 ms	716 KB	Output is correct
53	Correct	1 ms	716 KB	Output is correct
54	Correct	1 ms	716 KB	Output is correct
55	Correct	1 ms	716 KB	Output is correct
56	Correct	1 ms	716 KB	Output is correct
57	Correct	1 ms	716 KB	Output is correct
58	Correct	12 ms	812 KB	Output is correct
59	Correct	2 ms	716 KB	Output is correct
60	Correct	1 ms	716 KB	Output is correct
61	Correct	1 ms	716 KB	Output is correct
62	Correct	1 ms	716 KB	Output is correct
63	Correct	1 ms	716 KB	Output is correct
64	Correct	1 ms	716 KB	Output is correct
65	Correct	1 ms	716 KB	Output is correct
66	Correct	2 ms	716 KB	Output is correct
67	Correct	2 ms	716 KB	Output is correct
68	Correct	2 ms	716 KB	Output is correct
69	Incorrect	851 ms	984 KB	Output isn't correct
70	Halted	0 ms	0 KB	-

답안 #427778

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 8.0 / 8.0

Subtask #3 6.0 / 6.0

Subtask #4 6.0 / 6.0

Subtask #5 0 / 12.0

Subtask #6 0 / 32.0

Subtask #7 0 / 31.0

Subtask #1
5.0 / 5.0

Subtask #2
8.0 / 8.0

Subtask #3
6.0 / 6.0

Subtask #4
6.0 / 6.0

Subtask #5
0 / 12.0

Subtask #6
0 / 32.0

Subtask #7
0 / 31.0