답안 #375561

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
375561	2021-03-09T14:25:05 Z	mode149256	Wish (LMIO19_noras)	C++17	93 / 100	377 ms	15176 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<ll, ll>> 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	1 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	1 ms	364 KB	Output is correct
10	Correct	0 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	3 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	1 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	1 ms	364 KB	Output is correct
10	Correct	0 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	3 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	126 ms	7644 KB	Output is correct
24	Correct	126 ms	7644 KB	Output is correct
25	Correct	129 ms	7644 KB	Output is correct
26	Correct	129 ms	7644 KB	Output is correct
27	Correct	131 ms	5600 KB	Output is correct
28	Correct	132 ms	7644 KB	Output is correct
29	Correct	143 ms	7772 KB	Output is correct
30	Correct	141 ms	7772 KB	Output is correct
31	Correct	138 ms	7644 KB	Output is correct
32	Correct	162 ms	7644 KB	Output is correct
33	Correct	163 ms	7644 KB	Output is correct
34	Correct	164 ms	7772 KB	Output is correct
35	Correct	160 ms	7644 KB	Output is correct
36	Correct	174 ms	7772 KB	Output is correct
37	Correct	132 ms	5600 KB	Output is correct
38	Correct	133 ms	5600 KB	Output is correct
39	Correct	130 ms	5664 KB	Output is correct
40	Correct	131 ms	5728 KB	Output is correct
41	Correct	133 ms	5728 KB	Output is correct
42	Correct	137 ms	5600 KB	Output is correct
43	Correct	370 ms	14960 KB	Output is correct
44	Correct	371 ms	14932 KB	Output is correct
45	Correct	377 ms	14928 KB	Output is correct
46	Correct	376 ms	14932 KB	Output is correct
47	Correct	367 ms	14932 KB	Output is correct
48	Correct	326 ms	15036 KB	Output is correct
49	Correct	326 ms	14932 KB	Output is correct
50	Correct	330 ms	14956 KB	Output is correct
51	Correct	333 ms	15176 KB	Output is correct
52	Correct	334 ms	14932 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	1 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	1 ms	364 KB	Output is correct
10	Correct	0 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	3 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	1 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	1 ms	364 KB	Output is correct
10	Correct	0 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	3 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	126 ms	7644 KB	Output is correct
24	Correct	126 ms	7644 KB	Output is correct
25	Correct	129 ms	7644 KB	Output is correct
26	Correct	129 ms	7644 KB	Output is correct
27	Correct	131 ms	5600 KB	Output is correct
28	Correct	132 ms	7644 KB	Output is correct
29	Correct	143 ms	7772 KB	Output is correct
30	Correct	141 ms	7772 KB	Output is correct
31	Correct	138 ms	7644 KB	Output is correct
32	Correct	162 ms	7644 KB	Output is correct
33	Correct	163 ms	7644 KB	Output is correct
34	Correct	164 ms	7772 KB	Output is correct
35	Correct	160 ms	7644 KB	Output is correct
36	Correct	174 ms	7772 KB	Output is correct
37	Correct	132 ms	5600 KB	Output is correct
38	Correct	133 ms	5600 KB	Output is correct
39	Correct	130 ms	5664 KB	Output is correct
40	Correct	131 ms	5728 KB	Output is correct
41	Correct	133 ms	5728 KB	Output is correct
42	Correct	137 ms	5600 KB	Output is correct
43	Correct	370 ms	14960 KB	Output is correct
44	Correct	371 ms	14932 KB	Output is correct
45	Correct	377 ms	14928 KB	Output is correct
46	Correct	376 ms	14932 KB	Output is correct
47	Correct	367 ms	14932 KB	Output is correct
48	Correct	326 ms	15036 KB	Output is correct
49	Correct	326 ms	14932 KB	Output is correct
50	Correct	330 ms	14956 KB	Output is correct
51	Correct	333 ms	15176 KB	Output is correct
52	Correct	334 ms	14932 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	126 ms	7708 KB	Output is correct
60	Correct	136 ms	5600 KB	Output is correct
61	Correct	139 ms	5600 KB	Output is correct
62	Correct	136 ms	5632 KB	Output is correct
63	Correct	155 ms	5728 KB	Output is correct
64	Correct	155 ms	5728 KB	Output is correct
65	Correct	156 ms	5600 KB	Output is correct
66	Correct	155 ms	5600 KB	Output is correct
67	Correct	153 ms	5600 KB	Output is correct
68	Correct	167 ms	7644 KB	Output is correct
69	Correct	166 ms	7772 KB	Output is correct
70	Correct	166 ms	7644 KB	Output is correct
71	Correct	167 ms	7772 KB	Output is correct
72	Correct	170 ms	7772 KB	Output is correct
73	Correct	133 ms	5600 KB	Output is correct
74	Correct	135 ms	7644 KB	Output is correct
75	Correct	136 ms	7772 KB	Output is correct
76	Correct	139 ms	5728 KB	Output is correct
77	Correct	356 ms	14932 KB	Output is correct
78	Correct	362 ms	15060 KB	Output is correct
79	Correct	359 ms	14932 KB	Output is correct
80	Correct	356 ms	14932 KB	Output is correct
81	Correct	356 ms	14932 KB	Output is correct
82	Correct	335 ms	14932 KB	Output is correct
83	Correct	336 ms	14932 KB	Output is correct
84	Correct	333 ms	14932 KB	Output is correct
85	Correct	337 ms	14932 KB	Output is correct
86	Correct	342 ms	15100 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	1 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	1 ms	364 KB	Output is correct
10	Correct	0 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	3 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	126 ms	7644 KB	Output is correct
24	Correct	126 ms	7644 KB	Output is correct
25	Correct	129 ms	7644 KB	Output is correct
26	Correct	129 ms	7644 KB	Output is correct
27	Correct	131 ms	5600 KB	Output is correct
28	Correct	132 ms	7644 KB	Output is correct
29	Correct	143 ms	7772 KB	Output is correct
30	Correct	141 ms	7772 KB	Output is correct
31	Correct	138 ms	7644 KB	Output is correct
32	Correct	162 ms	7644 KB	Output is correct
33	Correct	163 ms	7644 KB	Output is correct
34	Correct	164 ms	7772 KB	Output is correct
35	Correct	160 ms	7644 KB	Output is correct
36	Correct	174 ms	7772 KB	Output is correct
37	Correct	132 ms	5600 KB	Output is correct
38	Correct	133 ms	5600 KB	Output is correct
39	Correct	130 ms	5664 KB	Output is correct
40	Correct	131 ms	5728 KB	Output is correct
41	Correct	133 ms	5728 KB	Output is correct
42	Correct	137 ms	5600 KB	Output is correct
43	Correct	370 ms	14960 KB	Output is correct
44	Correct	371 ms	14932 KB	Output is correct
45	Correct	377 ms	14928 KB	Output is correct
46	Correct	376 ms	14932 KB	Output is correct
47	Correct	367 ms	14932 KB	Output is correct
48	Correct	326 ms	15036 KB	Output is correct
49	Correct	326 ms	14932 KB	Output is correct
50	Correct	330 ms	14956 KB	Output is correct
51	Correct	333 ms	15176 KB	Output is correct
52	Correct	334 ms	14932 KB	Output is correct
53	Correct	126 ms	7708 KB	Output is correct
54	Correct	136 ms	5600 KB	Output is correct
55	Correct	139 ms	5600 KB	Output is correct
56	Correct	136 ms	5632 KB	Output is correct
57	Correct	155 ms	5728 KB	Output is correct
58	Correct	155 ms	5728 KB	Output is correct
59	Correct	156 ms	5600 KB	Output is correct
60	Correct	155 ms	5600 KB	Output is correct
61	Correct	153 ms	5600 KB	Output is correct
62	Correct	167 ms	7644 KB	Output is correct
63	Correct	166 ms	7772 KB	Output is correct
64	Correct	166 ms	7644 KB	Output is correct
65	Correct	167 ms	7772 KB	Output is correct
66	Correct	170 ms	7772 KB	Output is correct
67	Correct	133 ms	5600 KB	Output is correct
68	Correct	135 ms	7644 KB	Output is correct
69	Correct	136 ms	7772 KB	Output is correct
70	Correct	139 ms	5728 KB	Output is correct
71	Correct	356 ms	14932 KB	Output is correct
72	Correct	362 ms	15060 KB	Output is correct
73	Correct	359 ms	14932 KB	Output is correct
74	Correct	356 ms	14932 KB	Output is correct
75	Correct	356 ms	14932 KB	Output is correct
76	Correct	335 ms	14932 KB	Output is correct
77	Correct	336 ms	14932 KB	Output is correct
78	Correct	333 ms	14932 KB	Output is correct
79	Correct	337 ms	14932 KB	Output is correct
80	Correct	342 ms	15100 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	178 ms	3436 KB	Output isn't correct
88	Halted	0 ms	0 KB	-

답안 #375561

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