답안 #375607

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
375607	2021-03-09T15:15:49 Z	mode149256	Wish (LMIO19_noras)	C++17	93 / 100	414 ms	15336 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);
	// printf("%lld %lld, %lld %lld, h = %lld\n", b.prad.x, b.prad.y, b.dxy.x, b.dxy.y, h);
	ll m;
	while (h - l > 6) {
		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;
		}
	}

	pl ret = getnth(l, b);
	ll n = l;
	ll c = dis(ret, og);
	for (ll i = l + 1; i <= h; ++i)
	{
		pl nl = getnth(i, b);
		ll nc = dis(nl, og);
		if (nc < c) {
			c = nc;
			ret = nl;
			n = i;
		}
	}
	return n;
}

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	384 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	492 KB	Output is correct
9	Correct	1 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	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	384 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	384 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	492 KB	Output is correct
9	Correct	1 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	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	384 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	132 ms	7900 KB	Output is correct
24	Correct	129 ms	7900 KB	Output is correct
25	Correct	142 ms	7900 KB	Output is correct
26	Correct	138 ms	7960 KB	Output is correct
27	Correct	134 ms	5856 KB	Output is correct
28	Correct	135 ms	8156 KB	Output is correct
29	Correct	140 ms	8028 KB	Output is correct
30	Correct	137 ms	8028 KB	Output is correct
31	Correct	137 ms	7900 KB	Output is correct
32	Correct	161 ms	7900 KB	Output is correct
33	Correct	162 ms	7900 KB	Output is correct
34	Correct	167 ms	8028 KB	Output is correct
35	Correct	174 ms	7900 KB	Output is correct
36	Correct	164 ms	7900 KB	Output is correct
37	Correct	138 ms	5984 KB	Output is correct
38	Correct	136 ms	5984 KB	Output is correct
39	Correct	143 ms	5984 KB	Output is correct
40	Correct	134 ms	5856 KB	Output is correct
41	Correct	143 ms	5856 KB	Output is correct
42	Correct	137 ms	6112 KB	Output is correct
43	Correct	372 ms	15184 KB	Output is correct
44	Correct	396 ms	15188 KB	Output is correct
45	Correct	413 ms	15184 KB	Output is correct
46	Correct	392 ms	15188 KB	Output is correct
47	Correct	373 ms	15184 KB	Output is correct
48	Correct	363 ms	15224 KB	Output is correct
49	Correct	332 ms	15336 KB	Output is correct
50	Correct	414 ms	15188 KB	Output is correct
51	Correct	327 ms	15188 KB	Output is correct
52	Correct	327 ms	15320 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 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	492 KB	Output is correct
9	Correct	1 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	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	384 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	384 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	492 KB	Output is correct
9	Correct	1 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	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	384 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	132 ms	7900 KB	Output is correct
24	Correct	129 ms	7900 KB	Output is correct
25	Correct	142 ms	7900 KB	Output is correct
26	Correct	138 ms	7960 KB	Output is correct
27	Correct	134 ms	5856 KB	Output is correct
28	Correct	135 ms	8156 KB	Output is correct
29	Correct	140 ms	8028 KB	Output is correct
30	Correct	137 ms	8028 KB	Output is correct
31	Correct	137 ms	7900 KB	Output is correct
32	Correct	161 ms	7900 KB	Output is correct
33	Correct	162 ms	7900 KB	Output is correct
34	Correct	167 ms	8028 KB	Output is correct
35	Correct	174 ms	7900 KB	Output is correct
36	Correct	164 ms	7900 KB	Output is correct
37	Correct	138 ms	5984 KB	Output is correct
38	Correct	136 ms	5984 KB	Output is correct
39	Correct	143 ms	5984 KB	Output is correct
40	Correct	134 ms	5856 KB	Output is correct
41	Correct	143 ms	5856 KB	Output is correct
42	Correct	137 ms	6112 KB	Output is correct
43	Correct	372 ms	15184 KB	Output is correct
44	Correct	396 ms	15188 KB	Output is correct
45	Correct	413 ms	15184 KB	Output is correct
46	Correct	392 ms	15188 KB	Output is correct
47	Correct	373 ms	15184 KB	Output is correct
48	Correct	363 ms	15224 KB	Output is correct
49	Correct	332 ms	15336 KB	Output is correct
50	Correct	414 ms	15188 KB	Output is correct
51	Correct	327 ms	15188 KB	Output is correct
52	Correct	327 ms	15320 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	128 ms	7900 KB	Output is correct
60	Correct	160 ms	5856 KB	Output is correct
61	Correct	139 ms	5856 KB	Output is correct
62	Correct	135 ms	5856 KB	Output is correct
63	Correct	160 ms	5984 KB	Output is correct
64	Correct	155 ms	5888 KB	Output is correct
65	Correct	158 ms	5856 KB	Output is correct
66	Correct	157 ms	5856 KB	Output is correct
67	Correct	158 ms	5984 KB	Output is correct
68	Correct	175 ms	7900 KB	Output is correct
69	Correct	169 ms	8028 KB	Output is correct
70	Correct	195 ms	7964 KB	Output is correct
71	Correct	169 ms	7900 KB	Output is correct
72	Correct	168 ms	7964 KB	Output is correct
73	Correct	132 ms	5856 KB	Output is correct
74	Correct	137 ms	7900 KB	Output is correct
75	Correct	139 ms	7900 KB	Output is correct
76	Correct	139 ms	5856 KB	Output is correct
77	Correct	356 ms	15188 KB	Output is correct
78	Correct	365 ms	15188 KB	Output is correct
79	Correct	359 ms	15188 KB	Output is correct
80	Correct	360 ms	15204 KB	Output is correct
81	Correct	368 ms	15168 KB	Output is correct
82	Correct	336 ms	15188 KB	Output is correct
83	Correct	341 ms	15320 KB	Output is correct
84	Correct	341 ms	15188 KB	Output is correct
85	Correct	338 ms	15188 KB	Output is correct
86	Correct	340 ms	15188 KB	Output is correct

Subtask #5
0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 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	492 KB	Output is correct
9	Correct	1 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	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	384 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	132 ms	7900 KB	Output is correct
24	Correct	129 ms	7900 KB	Output is correct
25	Correct	142 ms	7900 KB	Output is correct
26	Correct	138 ms	7960 KB	Output is correct
27	Correct	134 ms	5856 KB	Output is correct
28	Correct	135 ms	8156 KB	Output is correct
29	Correct	140 ms	8028 KB	Output is correct
30	Correct	137 ms	8028 KB	Output is correct
31	Correct	137 ms	7900 KB	Output is correct
32	Correct	161 ms	7900 KB	Output is correct
33	Correct	162 ms	7900 KB	Output is correct
34	Correct	167 ms	8028 KB	Output is correct
35	Correct	174 ms	7900 KB	Output is correct
36	Correct	164 ms	7900 KB	Output is correct
37	Correct	138 ms	5984 KB	Output is correct
38	Correct	136 ms	5984 KB	Output is correct
39	Correct	143 ms	5984 KB	Output is correct
40	Correct	134 ms	5856 KB	Output is correct
41	Correct	143 ms	5856 KB	Output is correct
42	Correct	137 ms	6112 KB	Output is correct
43	Correct	372 ms	15184 KB	Output is correct
44	Correct	396 ms	15188 KB	Output is correct
45	Correct	413 ms	15184 KB	Output is correct
46	Correct	392 ms	15188 KB	Output is correct
47	Correct	373 ms	15184 KB	Output is correct
48	Correct	363 ms	15224 KB	Output is correct
49	Correct	332 ms	15336 KB	Output is correct
50	Correct	414 ms	15188 KB	Output is correct
51	Correct	327 ms	15188 KB	Output is correct
52	Correct	327 ms	15320 KB	Output is correct
53	Correct	128 ms	7900 KB	Output is correct
54	Correct	160 ms	5856 KB	Output is correct
55	Correct	139 ms	5856 KB	Output is correct
56	Correct	135 ms	5856 KB	Output is correct
57	Correct	160 ms	5984 KB	Output is correct
58	Correct	155 ms	5888 KB	Output is correct
59	Correct	158 ms	5856 KB	Output is correct
60	Correct	157 ms	5856 KB	Output is correct
61	Correct	158 ms	5984 KB	Output is correct
62	Correct	175 ms	7900 KB	Output is correct
63	Correct	169 ms	8028 KB	Output is correct
64	Correct	195 ms	7964 KB	Output is correct
65	Correct	169 ms	7900 KB	Output is correct
66	Correct	168 ms	7964 KB	Output is correct
67	Correct	132 ms	5856 KB	Output is correct
68	Correct	137 ms	7900 KB	Output is correct
69	Correct	139 ms	7900 KB	Output is correct
70	Correct	139 ms	5856 KB	Output is correct
71	Correct	356 ms	15188 KB	Output is correct
72	Correct	365 ms	15188 KB	Output is correct
73	Correct	359 ms	15188 KB	Output is correct
74	Correct	360 ms	15204 KB	Output is correct
75	Correct	368 ms	15168 KB	Output is correct
76	Correct	336 ms	15188 KB	Output is correct
77	Correct	341 ms	15320 KB	Output is correct
78	Correct	341 ms	15188 KB	Output is correct
79	Correct	338 ms	15188 KB	Output is correct
80	Correct	340 ms	15188 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	180 ms	3740 KB	Output isn't correct
88	Halted	0 ms	0 KB	-

답안 #375607

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