답안 #375558

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
375558	2021-03-09T14:23:03 Z	mode149256	Wish (LMIO19_noras)	C++17	93 / 100	377 ms	10900 KB

noras

/*input
2 1
-3 -2 -1 -1
-2 2 -1 1
*/
#include<bits/stdc++.h>
using namespace std;
#define x first
#define y second

using ll = long long;
using pl = pair<ll, ll>;

struct beam {
	pl prad;
	pl dxy; // {dx, dy}
};
int N, R;

ll dis(pl a, pl b) { // squared distance
	return (a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y);
}

// 0th second yra prad
pl getnth(ll n, beam b) {
	return {b.prad.x + n * b.dxy.x, b.prad.y + n * b.dxy.y};
}
vector<beam> sk;

ll getINF(beam b) {
	return ((ll)200000007) / max(abs(b.dxy.x), abs(b.dxy.y));
}
pl og = {0, 0};

ll closest(beam b) {
	ll l = 0;
	ll h = getINF(b);
	ll m;

	while (l < h) {
		m = (l + h) / 2;

		pl n1 = getnth(m, b);
		pl n2 = getnth(m + 1, b);

		ll d1 = dis(n1, og);
		ll d2 = dis(n2, og);

		if (d1 == d2) {
			return m;
		} else if (d1 < d2) {
			h = m;
		} else {
			l = m + 1;
		}
	}

	return l;
}

ll getFirst(beam b, ll best) {
	ll l = 0;
	ll h = best;
	ll m;
	while (l < h) {
		m = (l + h) / 2;

		pl n1 = getnth(m, b);
		ll d1 = dis(n1, og);

		if (d1 <= R * R) {
			h = m;
		} else {
			l = m + 1;
		}
	}
	return l;
}

ll getLast(beam b, ll best) {
	ll l = best;
	ll h = getINF(b);
	ll m;
	while (l < h) {
		m = (l + h + 1) / 2;

		pl n1 = getnth(m, b);
		ll d1 = dis(n1, og);

		if (d1 <= R * R) {
			l = m;
		} else {
			h = m - 1;
		}
	}
	return l;
}

int main() {
	cin >> N >> R;
	sk.resize(N);
	for (int i = 0; i < N; ++i)
	{
		ll a, b, c, d;
		cin >> a >> b >> c >> d;
		sk[i] = beam{{a, b}, {c - a, d - b}};
	}

	vector<pair<int, int>> inter;

	for (auto b : sk) {
		ll best = closest(b);
		if (dis(getnth(best, b), og) > R * R) {
			continue;
		}

		ll pirm = getFirst(b, best);
		ll gal = getLast(b, best);

		inter.emplace_back(pirm, +1);
		inter.emplace_back(gal + 1, -1);
		//[pirm, gal]
	}

	sort(inter.begin(), inter.end());

	ll ats = 0;
	ll curr = 0;

	int j = 0;
	while (j < (int)inter.size()) {
		ll dabar = inter[j].x;
		while (j < (int)inter.size() && inter[j].x == dabar) {
			curr += inter[j].y;
			j++;
		}

		ats = max(ats, curr);
	}
	cout << ats << '\n';
}

Subtask #1
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	2 ms	364 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	2 ms	364 KB	Output is correct
21	Correct	2 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct

Subtask #2
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	2 ms	364 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	2 ms	364 KB	Output is correct
21	Correct	2 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	131 ms	5600 KB	Output is correct
24	Correct	126 ms	5600 KB	Output is correct
25	Correct	129 ms	5728 KB	Output is correct
26	Correct	130 ms	5600 KB	Output is correct
27	Correct	135 ms	4836 KB	Output is correct
28	Correct	134 ms	5600 KB	Output is correct
29	Correct	137 ms	5600 KB	Output is correct
30	Correct	138 ms	5600 KB	Output is correct
31	Correct	140 ms	5728 KB	Output is correct
32	Correct	163 ms	5600 KB	Output is correct
33	Correct	163 ms	5600 KB	Output is correct
34	Correct	162 ms	5600 KB	Output is correct
35	Correct	165 ms	5736 KB	Output is correct
36	Correct	164 ms	5600 KB	Output is correct
37	Correct	135 ms	4580 KB	Output is correct
38	Correct	137 ms	4580 KB	Output is correct
39	Correct	137 ms	4708 KB	Output is correct
40	Correct	134 ms	4580 KB	Output is correct
41	Correct	138 ms	4580 KB	Output is correct
42	Correct	158 ms	4580 KB	Output is correct
43	Correct	373 ms	10844 KB	Output is correct
44	Correct	376 ms	10844 KB	Output is correct
45	Correct	375 ms	10844 KB	Output is correct
46	Correct	373 ms	10844 KB	Output is correct
47	Correct	377 ms	10844 KB	Output is correct
48	Correct	335 ms	10844 KB	Output is correct
49	Correct	330 ms	10844 KB	Output is correct
50	Correct	335 ms	10844 KB	Output is correct
51	Correct	329 ms	10844 KB	Output is correct
52	Correct	329 ms	10844 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	2 ms	364 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	2 ms	364 KB	Output is correct
21	Correct	2 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	2 ms	364 KB	Output is correct
25	Correct	2 ms	364 KB	Output is correct
26	Correct	2 ms	364 KB	Output is correct
27	Correct	2 ms	364 KB	Output is correct
28	Correct	2 ms	364 KB	Output is correct

Subtask #4
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	2 ms	364 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	2 ms	364 KB	Output is correct
21	Correct	2 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	131 ms	5600 KB	Output is correct
24	Correct	126 ms	5600 KB	Output is correct
25	Correct	129 ms	5728 KB	Output is correct
26	Correct	130 ms	5600 KB	Output is correct
27	Correct	135 ms	4836 KB	Output is correct
28	Correct	134 ms	5600 KB	Output is correct
29	Correct	137 ms	5600 KB	Output is correct
30	Correct	138 ms	5600 KB	Output is correct
31	Correct	140 ms	5728 KB	Output is correct
32	Correct	163 ms	5600 KB	Output is correct
33	Correct	163 ms	5600 KB	Output is correct
34	Correct	162 ms	5600 KB	Output is correct
35	Correct	165 ms	5736 KB	Output is correct
36	Correct	164 ms	5600 KB	Output is correct
37	Correct	135 ms	4580 KB	Output is correct
38	Correct	137 ms	4580 KB	Output is correct
39	Correct	137 ms	4708 KB	Output is correct
40	Correct	134 ms	4580 KB	Output is correct
41	Correct	138 ms	4580 KB	Output is correct
42	Correct	158 ms	4580 KB	Output is correct
43	Correct	373 ms	10844 KB	Output is correct
44	Correct	376 ms	10844 KB	Output is correct
45	Correct	375 ms	10844 KB	Output is correct
46	Correct	373 ms	10844 KB	Output is correct
47	Correct	377 ms	10844 KB	Output is correct
48	Correct	335 ms	10844 KB	Output is correct
49	Correct	330 ms	10844 KB	Output is correct
50	Correct	335 ms	10844 KB	Output is correct
51	Correct	329 ms	10844 KB	Output is correct
52	Correct	329 ms	10844 KB	Output is correct
53	Correct	1 ms	364 KB	Output is correct
54	Correct	2 ms	364 KB	Output is correct
55	Correct	2 ms	364 KB	Output is correct
56	Correct	2 ms	364 KB	Output is correct
57	Correct	2 ms	364 KB	Output is correct
58	Correct	2 ms	364 KB	Output is correct
59	Correct	133 ms	5664 KB	Output is correct
60	Correct	141 ms	4580 KB	Output is correct
61	Correct	150 ms	4708 KB	Output is correct
62	Correct	137 ms	4580 KB	Output is correct
63	Correct	160 ms	4620 KB	Output is correct
64	Correct	158 ms	4708 KB	Output is correct
65	Correct	161 ms	4580 KB	Output is correct
66	Correct	162 ms	4708 KB	Output is correct
67	Correct	158 ms	4728 KB	Output is correct
68	Correct	170 ms	5600 KB	Output is correct
69	Correct	168 ms	5600 KB	Output is correct
70	Correct	168 ms	5600 KB	Output is correct
71	Correct	172 ms	5600 KB	Output is correct
72	Correct	172 ms	5600 KB	Output is correct
73	Correct	139 ms	4708 KB	Output is correct
74	Correct	138 ms	5600 KB	Output is correct
75	Correct	142 ms	5600 KB	Output is correct
76	Correct	139 ms	4644 KB	Output is correct
77	Correct	362 ms	10844 KB	Output is correct
78	Correct	359 ms	10844 KB	Output is correct
79	Correct	363 ms	10844 KB	Output is correct
80	Correct	357 ms	10844 KB	Output is correct
81	Correct	362 ms	10900 KB	Output is correct
82	Correct	344 ms	10840 KB	Output is correct
83	Correct	344 ms	10844 KB	Output is correct
84	Correct	340 ms	10844 KB	Output is correct
85	Correct	340 ms	10844 KB	Output is correct
86	Correct	338 ms	10844 KB	Output is correct

Subtask #5
0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	2 ms	364 KB	Output is correct
4	Correct	2 ms	364 KB	Output is correct
5	Correct	2 ms	364 KB	Output is correct
6	Correct	2 ms	364 KB	Output is correct
7	Correct	2 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	2 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	2 ms	364 KB	Output is correct
18	Correct	2 ms	364 KB	Output is correct
19	Correct	2 ms	364 KB	Output is correct
20	Correct	2 ms	364 KB	Output is correct
21	Correct	2 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	131 ms	5600 KB	Output is correct
24	Correct	126 ms	5600 KB	Output is correct
25	Correct	129 ms	5728 KB	Output is correct
26	Correct	130 ms	5600 KB	Output is correct
27	Correct	135 ms	4836 KB	Output is correct
28	Correct	134 ms	5600 KB	Output is correct
29	Correct	137 ms	5600 KB	Output is correct
30	Correct	138 ms	5600 KB	Output is correct
31	Correct	140 ms	5728 KB	Output is correct
32	Correct	163 ms	5600 KB	Output is correct
33	Correct	163 ms	5600 KB	Output is correct
34	Correct	162 ms	5600 KB	Output is correct
35	Correct	165 ms	5736 KB	Output is correct
36	Correct	164 ms	5600 KB	Output is correct
37	Correct	135 ms	4580 KB	Output is correct
38	Correct	137 ms	4580 KB	Output is correct
39	Correct	137 ms	4708 KB	Output is correct
40	Correct	134 ms	4580 KB	Output is correct
41	Correct	138 ms	4580 KB	Output is correct
42	Correct	158 ms	4580 KB	Output is correct
43	Correct	373 ms	10844 KB	Output is correct
44	Correct	376 ms	10844 KB	Output is correct
45	Correct	375 ms	10844 KB	Output is correct
46	Correct	373 ms	10844 KB	Output is correct
47	Correct	377 ms	10844 KB	Output is correct
48	Correct	335 ms	10844 KB	Output is correct
49	Correct	330 ms	10844 KB	Output is correct
50	Correct	335 ms	10844 KB	Output is correct
51	Correct	329 ms	10844 KB	Output is correct
52	Correct	329 ms	10844 KB	Output is correct
53	Correct	133 ms	5664 KB	Output is correct
54	Correct	141 ms	4580 KB	Output is correct
55	Correct	150 ms	4708 KB	Output is correct
56	Correct	137 ms	4580 KB	Output is correct
57	Correct	160 ms	4620 KB	Output is correct
58	Correct	158 ms	4708 KB	Output is correct
59	Correct	161 ms	4580 KB	Output is correct
60	Correct	162 ms	4708 KB	Output is correct
61	Correct	158 ms	4728 KB	Output is correct
62	Correct	170 ms	5600 KB	Output is correct
63	Correct	168 ms	5600 KB	Output is correct
64	Correct	168 ms	5600 KB	Output is correct
65	Correct	172 ms	5600 KB	Output is correct
66	Correct	172 ms	5600 KB	Output is correct
67	Correct	139 ms	4708 KB	Output is correct
68	Correct	138 ms	5600 KB	Output is correct
69	Correct	142 ms	5600 KB	Output is correct
70	Correct	139 ms	4644 KB	Output is correct
71	Correct	362 ms	10844 KB	Output is correct
72	Correct	359 ms	10844 KB	Output is correct
73	Correct	363 ms	10844 KB	Output is correct
74	Correct	357 ms	10844 KB	Output is correct
75	Correct	362 ms	10900 KB	Output is correct
76	Correct	344 ms	10840 KB	Output is correct
77	Correct	344 ms	10844 KB	Output is correct
78	Correct	340 ms	10844 KB	Output is correct
79	Correct	340 ms	10844 KB	Output is correct
80	Correct	338 ms	10844 KB	Output is correct
81	Correct	1 ms	364 KB	Output is correct
82	Correct	2 ms	364 KB	Output is correct
83	Correct	2 ms	364 KB	Output is correct
84	Correct	2 ms	364 KB	Output is correct
85	Correct	2 ms	364 KB	Output is correct
86	Correct	2 ms	364 KB	Output is correct
87	Incorrect	185 ms	3436 KB	Output isn't correct
88	Halted	0 ms	0 KB	-

답안 #375558

Compilation message

Subtask #1 23.0 / 23.0

Subtask #2 23.0 / 23.0

Subtask #3 15.0 / 15.0

Subtask #4 32.0 / 32.0

Subtask #5 0 / 7.0

Subtask #1
23.0 / 23.0

Subtask #2
23.0 / 23.0

Subtask #3
15.0 / 15.0

Subtask #4
32.0 / 32.0

Subtask #5
0 / 7.0