Submission #426201

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
426201	2021-06-13T15:10:53 Z	8e7	IOI Fever (JOI21_fever)	C++14	13 / 100	146 ms	324 KB

fever

//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <vector>
#include <utility>
#include <stack>
#include <queue>
#include <iomanip>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
void debug() {cout << endl;}
template<class T, class ... U> void debug(T a, U ... b){ cout << a << " ";debug(b ...);};
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#define ll long long
#define maxn 100005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
//using namespace __gnu_pbds;
pii a[maxn];
int dir[4][2] = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
int val[maxn], type[maxn];
int solve(int n) {
	//pary(val, val + n);
	bool in[n];
	for (int i = 0;i < n;i++) in[i] = 0;
	in[0] = 1;
	vector<pair<ll, pii>> ev;
	for (int i = 0;i < n;i++) {
		for (int j = i + 1;j < n;j++) {
			if (val[i] % 2 != val[j] % 2) {
				pii inter;
				ll dx = 0, dy = 0;
				if (val[i] % 2) {
					inter = {a[i].ff, a[j].ss};
					dy = (a[j].ss - a[i].ss) / dir[val[i]][1];
					dx = (a[i].ff - a[j].ff) / dir[val[j]][0];
				} else {
					inter = {a[j].ff, a[i].ss};
					dy = (a[i].ss - a[j].ss) / dir[val[j]][1];
					dx = (a[j].ff - a[i].ff) / dir[val[i]][0];
				}
				if (dx > 0 && dy > 0 && dx == dy) {
					ev.push_back(make_pair(dx, make_pair(i,j)));
				}	
			}
		}
	}
	sort(ev.begin(), ev.end());
	for (auto i:ev) {
		if (in[i.ss.ff] || in[i.ss.ss]) {
			in[i.ss.ff] = in[i.ss.ss] = 1;
		}
	}
	int cnt = 0;
	for (int i = 0;i < n;i++) cnt += in[i] ? 1 : 0;
	return cnt;
}
int main() {
	io
	int n;
	cin >> n;
	for (int i = 0;i < n;i++) {
		cin >> a[i].ff >> a[i].ss;
	}
	for (int i = 1;i < n;i++) {
		if (a[i].ff < a[0].ff) {
			if (a[i].ss < a[0].ss) type[i] = 0;
			else type[i] = 3;
		} else {
			if (a[i].ss < a[0].ss) type[i] = 1;
			else type[i] = 2;
		}
	}
	int ans = 1;
	for (int i = 0;i < (1<<(n + 1));i++) {
		val[0] = i & 3;
		for (int j = 1;j < n;j++) {
			val[j] = (type[j] + ((i & (1<<(j + 1))) ? 1 : 0)) % 4;
		}
		ans = max(ans, solve(n));
	}
	cout << ans << endl;
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	66 ms	304 KB	Output is correct
34	Correct	80 ms	204 KB	Output is correct
35	Correct	60 ms	300 KB	Output is correct
36	Correct	90 ms	204 KB	Output is correct
37	Correct	60 ms	204 KB	Output is correct
38	Correct	146 ms	204 KB	Output is correct
39	Correct	125 ms	204 KB	Output is correct
40	Correct	105 ms	204 KB	Output is correct
41	Correct	92 ms	304 KB	Output is correct
42	Correct	85 ms	204 KB	Output is correct
43	Correct	94 ms	304 KB	Output is correct
44	Correct	81 ms	324 KB	Output is correct
45	Correct	86 ms	204 KB	Output is correct

Subtask #3
0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Incorrect	1 ms	204 KB	Output isn't correct
7	Halted	0 ms	0 KB	-

Subtask #4
0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	66 ms	304 KB	Output is correct
34	Correct	80 ms	204 KB	Output is correct
35	Correct	60 ms	300 KB	Output is correct
36	Correct	90 ms	204 KB	Output is correct
37	Correct	60 ms	204 KB	Output is correct
38	Correct	146 ms	204 KB	Output is correct
39	Correct	125 ms	204 KB	Output is correct
40	Correct	105 ms	204 KB	Output is correct
41	Correct	92 ms	304 KB	Output is correct
42	Correct	85 ms	204 KB	Output is correct
43	Correct	94 ms	304 KB	Output is correct
44	Correct	81 ms	324 KB	Output is correct
45	Correct	86 ms	204 KB	Output is correct
46	Correct	1 ms	204 KB	Output is correct
47	Correct	1 ms	204 KB	Output is correct
48	Correct	1 ms	204 KB	Output is correct
49	Correct	1 ms	204 KB	Output is correct
50	Correct	1 ms	204 KB	Output is correct
51	Incorrect	1 ms	204 KB	Output isn't correct
52	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	66 ms	304 KB	Output is correct
34	Correct	80 ms	204 KB	Output is correct
35	Correct	60 ms	300 KB	Output is correct
36	Correct	90 ms	204 KB	Output is correct
37	Correct	60 ms	204 KB	Output is correct
38	Correct	146 ms	204 KB	Output is correct
39	Correct	125 ms	204 KB	Output is correct
40	Correct	105 ms	204 KB	Output is correct
41	Correct	92 ms	304 KB	Output is correct
42	Correct	85 ms	204 KB	Output is correct
43	Correct	94 ms	304 KB	Output is correct
44	Correct	81 ms	324 KB	Output is correct
45	Correct	86 ms	204 KB	Output is correct
46	Correct	1 ms	204 KB	Output is correct
47	Correct	1 ms	204 KB	Output is correct
48	Correct	1 ms	204 KB	Output is correct
49	Correct	1 ms	204 KB	Output is correct
50	Correct	1 ms	204 KB	Output is correct
51	Incorrect	1 ms	204 KB	Output isn't correct
52	Halted	0 ms	0 KB	-

Subtask #6
0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	66 ms	304 KB	Output is correct
34	Correct	80 ms	204 KB	Output is correct
35	Correct	60 ms	300 KB	Output is correct
36	Correct	90 ms	204 KB	Output is correct
37	Correct	60 ms	204 KB	Output is correct
38	Correct	146 ms	204 KB	Output is correct
39	Correct	125 ms	204 KB	Output is correct
40	Correct	105 ms	204 KB	Output is correct
41	Correct	92 ms	304 KB	Output is correct
42	Correct	85 ms	204 KB	Output is correct
43	Correct	94 ms	304 KB	Output is correct
44	Correct	81 ms	324 KB	Output is correct
45	Correct	86 ms	204 KB	Output is correct
46	Correct	1 ms	204 KB	Output is correct
47	Correct	1 ms	204 KB	Output is correct
48	Correct	1 ms	204 KB	Output is correct
49	Correct	1 ms	204 KB	Output is correct
50	Correct	1 ms	204 KB	Output is correct
51	Incorrect	1 ms	204 KB	Output isn't correct
52	Halted	0 ms	0 KB	-

Subtask #7
0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	66 ms	304 KB	Output is correct
34	Correct	80 ms	204 KB	Output is correct
35	Correct	60 ms	300 KB	Output is correct
36	Correct	90 ms	204 KB	Output is correct
37	Correct	60 ms	204 KB	Output is correct
38	Correct	146 ms	204 KB	Output is correct
39	Correct	125 ms	204 KB	Output is correct
40	Correct	105 ms	204 KB	Output is correct
41	Correct	92 ms	304 KB	Output is correct
42	Correct	85 ms	204 KB	Output is correct
43	Correct	94 ms	304 KB	Output is correct
44	Correct	81 ms	324 KB	Output is correct
45	Correct	86 ms	204 KB	Output is correct
46	Correct	1 ms	204 KB	Output is correct
47	Correct	1 ms	204 KB	Output is correct
48	Correct	1 ms	204 KB	Output is correct
49	Correct	1 ms	204 KB	Output is correct
50	Correct	1 ms	204 KB	Output is correct
51	Incorrect	1 ms	204 KB	Output isn't correct
52	Halted	0 ms	0 KB	-

Submission #426201

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 6.0

Subtask #4 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
0 / 6.0

Subtask #4
0 / 6.0

Subtask #5
0 / 12.0

Subtask #6
0 / 32.0

Subtask #7
0 / 31.0