답안 #247017

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
247017	2020-07-10T18:30:10 Z	dolphingarlic	Wish (LMIO19_noras)	C++14	100 / 100	338 ms	20020 KB

noras

#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
typedef long long ll;
using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    long double r;
    cin >> n >> r;
    vector<pair<long double, int>> stars;
    FOR(i, 0, n) {
        long double x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        if (x1 == x2) swap(x1, y1), swap(x2, y2);
        long double v = x2 - x1;

        long double m = (y1 - y2) / (x1 - x2);
        long double c = y1 - m * x1;
        if (m * m * c * c < (m * m + 1) * (c * c - r * r)) continue;

        long double int_1 =
            (-m * c + sqrt(m * m * c * c - (m * m + 1) * (c * c - r * r))) /
            (m * m + 1);
        long double int_2 =
            (-m * c - sqrt(m * m * c * c - (m * m + 1) * (c * c - r * r))) /
            (m * m + 1);
        if ((int_1 - x1) / v > (int_2 - x1) / v) swap(int_1, int_2);

        stars.push_back({ceil((int_1 - x1) / v), -1});
        stars.push_back({floor((int_2 - x1) / v), 1});
    }
    stars.push_back({0, 0});
    sort(stars.begin(), stars.end());

    int ans = 0, cnt = 0;
    for (pair<long double, int> i : stars) {
        cnt -= i.second;
        if (i.first >= 0) ans = max(ans, cnt);
    }
    cout << ans;
    return 0;
}

Subtask #1
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	7 ms	512 KB	Output is correct
4	Correct	7 ms	512 KB	Output is correct
5	Correct	6 ms	416 KB	Output is correct
6	Correct	7 ms	512 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	6 ms	512 KB	Output is correct
15	Correct	6 ms	512 KB	Output is correct
16	Correct	6 ms	512 KB	Output is correct
17	Correct	6 ms	512 KB	Output is correct
18	Correct	6 ms	512 KB	Output is correct
19	Correct	6 ms	512 KB	Output is correct
20	Correct	6 ms	512 KB	Output is correct
21	Correct	6 ms	512 KB	Output is correct
22	Correct	6 ms	512 KB	Output is correct

Subtask #2
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	7 ms	512 KB	Output is correct
4	Correct	7 ms	512 KB	Output is correct
5	Correct	6 ms	416 KB	Output is correct
6	Correct	7 ms	512 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	6 ms	512 KB	Output is correct
15	Correct	6 ms	512 KB	Output is correct
16	Correct	6 ms	512 KB	Output is correct
17	Correct	6 ms	512 KB	Output is correct
18	Correct	6 ms	512 KB	Output is correct
19	Correct	6 ms	512 KB	Output is correct
20	Correct	6 ms	512 KB	Output is correct
21	Correct	6 ms	512 KB	Output is correct
22	Correct	6 ms	512 KB	Output is correct
23	Correct	134 ms	8800 KB	Output is correct
24	Correct	135 ms	8800 KB	Output is correct
25	Correct	133 ms	8864 KB	Output is correct
26	Correct	133 ms	8804 KB	Output is correct
27	Correct	150 ms	8800 KB	Output is correct
28	Correct	137 ms	8800 KB	Output is correct
29	Correct	142 ms	8932 KB	Output is correct
30	Correct	140 ms	8800 KB	Output is correct
31	Correct	141 ms	8804 KB	Output is correct
32	Correct	158 ms	8928 KB	Output is correct
33	Correct	154 ms	8960 KB	Output is correct
34	Correct	153 ms	8804 KB	Output is correct
35	Correct	152 ms	8800 KB	Output is correct
36	Correct	148 ms	8800 KB	Output is correct
37	Correct	140 ms	8800 KB	Output is correct
38	Correct	141 ms	8796 KB	Output is correct
39	Correct	144 ms	8800 KB	Output is correct
40	Correct	162 ms	8888 KB	Output is correct
41	Correct	140 ms	8804 KB	Output is correct
42	Correct	144 ms	8796 KB	Output is correct
43	Correct	329 ms	17232 KB	Output is correct
44	Correct	321 ms	17108 KB	Output is correct
45	Correct	320 ms	17148 KB	Output is correct
46	Correct	328 ms	16980 KB	Output is correct
47	Correct	320 ms	16980 KB	Output is correct
48	Correct	323 ms	16980 KB	Output is correct
49	Correct	303 ms	16980 KB	Output is correct
50	Correct	313 ms	16984 KB	Output is correct
51	Correct	305 ms	16980 KB	Output is correct
52	Correct	307 ms	17048 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	7 ms	512 KB	Output is correct
4	Correct	7 ms	512 KB	Output is correct
5	Correct	6 ms	416 KB	Output is correct
6	Correct	7 ms	512 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	6 ms	512 KB	Output is correct
15	Correct	6 ms	512 KB	Output is correct
16	Correct	6 ms	512 KB	Output is correct
17	Correct	6 ms	512 KB	Output is correct
18	Correct	6 ms	512 KB	Output is correct
19	Correct	6 ms	512 KB	Output is correct
20	Correct	6 ms	512 KB	Output is correct
21	Correct	6 ms	512 KB	Output is correct
22	Correct	6 ms	512 KB	Output is correct
23	Correct	4 ms	384 KB	Output is correct
24	Correct	6 ms	512 KB	Output is correct
25	Correct	7 ms	512 KB	Output is correct
26	Correct	6 ms	512 KB	Output is correct
27	Correct	6 ms	512 KB	Output is correct
28	Correct	6 ms	512 KB	Output is correct

Subtask #4
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	7 ms	512 KB	Output is correct
4	Correct	7 ms	512 KB	Output is correct
5	Correct	6 ms	416 KB	Output is correct
6	Correct	7 ms	512 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	6 ms	512 KB	Output is correct
15	Correct	6 ms	512 KB	Output is correct
16	Correct	6 ms	512 KB	Output is correct
17	Correct	6 ms	512 KB	Output is correct
18	Correct	6 ms	512 KB	Output is correct
19	Correct	6 ms	512 KB	Output is correct
20	Correct	6 ms	512 KB	Output is correct
21	Correct	6 ms	512 KB	Output is correct
22	Correct	6 ms	512 KB	Output is correct
23	Correct	134 ms	8800 KB	Output is correct
24	Correct	135 ms	8800 KB	Output is correct
25	Correct	133 ms	8864 KB	Output is correct
26	Correct	133 ms	8804 KB	Output is correct
27	Correct	150 ms	8800 KB	Output is correct
28	Correct	137 ms	8800 KB	Output is correct
29	Correct	142 ms	8932 KB	Output is correct
30	Correct	140 ms	8800 KB	Output is correct
31	Correct	141 ms	8804 KB	Output is correct
32	Correct	158 ms	8928 KB	Output is correct
33	Correct	154 ms	8960 KB	Output is correct
34	Correct	153 ms	8804 KB	Output is correct
35	Correct	152 ms	8800 KB	Output is correct
36	Correct	148 ms	8800 KB	Output is correct
37	Correct	140 ms	8800 KB	Output is correct
38	Correct	141 ms	8796 KB	Output is correct
39	Correct	144 ms	8800 KB	Output is correct
40	Correct	162 ms	8888 KB	Output is correct
41	Correct	140 ms	8804 KB	Output is correct
42	Correct	144 ms	8796 KB	Output is correct
43	Correct	329 ms	17232 KB	Output is correct
44	Correct	321 ms	17108 KB	Output is correct
45	Correct	320 ms	17148 KB	Output is correct
46	Correct	328 ms	16980 KB	Output is correct
47	Correct	320 ms	16980 KB	Output is correct
48	Correct	323 ms	16980 KB	Output is correct
49	Correct	303 ms	16980 KB	Output is correct
50	Correct	313 ms	16984 KB	Output is correct
51	Correct	305 ms	16980 KB	Output is correct
52	Correct	307 ms	17048 KB	Output is correct
53	Correct	147 ms	8800 KB	Output is correct
54	Correct	152 ms	8800 KB	Output is correct
55	Correct	144 ms	10596 KB	Output is correct
56	Correct	142 ms	10464 KB	Output is correct
57	Correct	157 ms	10764 KB	Output is correct
58	Correct	160 ms	10596 KB	Output is correct
59	Correct	157 ms	10592 KB	Output is correct
60	Correct	157 ms	10720 KB	Output is correct
61	Correct	154 ms	10592 KB	Output is correct
62	Correct	157 ms	10208 KB	Output is correct
63	Correct	157 ms	10208 KB	Output is correct
64	Correct	158 ms	10336 KB	Output is correct
65	Correct	162 ms	10212 KB	Output is correct
66	Correct	160 ms	10208 KB	Output is correct
67	Correct	138 ms	9824 KB	Output is correct
68	Correct	140 ms	9956 KB	Output is correct
69	Correct	150 ms	9996 KB	Output is correct
70	Correct	145 ms	9952 KB	Output is correct
71	Correct	330 ms	20020 KB	Output is correct
72	Correct	338 ms	19924 KB	Output is correct
73	Correct	322 ms	19924 KB	Output is correct
74	Correct	322 ms	19924 KB	Output is correct
75	Correct	324 ms	19920 KB	Output is correct
76	Correct	305 ms	19668 KB	Output is correct
77	Correct	312 ms	19784 KB	Output is correct
78	Correct	304 ms	19740 KB	Output is correct
79	Correct	316 ms	19668 KB	Output is correct
80	Correct	316 ms	19668 KB	Output is correct
81	Correct	4 ms	384 KB	Output is correct
82	Correct	6 ms	512 KB	Output is correct
83	Correct	7 ms	512 KB	Output is correct
84	Correct	6 ms	512 KB	Output is correct
85	Correct	6 ms	512 KB	Output is correct
86	Correct	6 ms	512 KB	Output is correct

Subtask #5
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	7 ms	512 KB	Output is correct
4	Correct	7 ms	512 KB	Output is correct
5	Correct	6 ms	416 KB	Output is correct
6	Correct	7 ms	512 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	6 ms	512 KB	Output is correct
15	Correct	6 ms	512 KB	Output is correct
16	Correct	6 ms	512 KB	Output is correct
17	Correct	6 ms	512 KB	Output is correct
18	Correct	6 ms	512 KB	Output is correct
19	Correct	6 ms	512 KB	Output is correct
20	Correct	6 ms	512 KB	Output is correct
21	Correct	6 ms	512 KB	Output is correct
22	Correct	6 ms	512 KB	Output is correct
23	Correct	134 ms	8800 KB	Output is correct
24	Correct	135 ms	8800 KB	Output is correct
25	Correct	133 ms	8864 KB	Output is correct
26	Correct	133 ms	8804 KB	Output is correct
27	Correct	150 ms	8800 KB	Output is correct
28	Correct	137 ms	8800 KB	Output is correct
29	Correct	142 ms	8932 KB	Output is correct
30	Correct	140 ms	8800 KB	Output is correct
31	Correct	141 ms	8804 KB	Output is correct
32	Correct	158 ms	8928 KB	Output is correct
33	Correct	154 ms	8960 KB	Output is correct
34	Correct	153 ms	8804 KB	Output is correct
35	Correct	152 ms	8800 KB	Output is correct
36	Correct	148 ms	8800 KB	Output is correct
37	Correct	140 ms	8800 KB	Output is correct
38	Correct	141 ms	8796 KB	Output is correct
39	Correct	144 ms	8800 KB	Output is correct
40	Correct	162 ms	8888 KB	Output is correct
41	Correct	140 ms	8804 KB	Output is correct
42	Correct	144 ms	8796 KB	Output is correct
43	Correct	329 ms	17232 KB	Output is correct
44	Correct	321 ms	17108 KB	Output is correct
45	Correct	320 ms	17148 KB	Output is correct
46	Correct	328 ms	16980 KB	Output is correct
47	Correct	320 ms	16980 KB	Output is correct
48	Correct	323 ms	16980 KB	Output is correct
49	Correct	303 ms	16980 KB	Output is correct
50	Correct	313 ms	16984 KB	Output is correct
51	Correct	305 ms	16980 KB	Output is correct
52	Correct	307 ms	17048 KB	Output is correct
53	Correct	147 ms	8800 KB	Output is correct
54	Correct	152 ms	8800 KB	Output is correct
55	Correct	144 ms	10596 KB	Output is correct
56	Correct	142 ms	10464 KB	Output is correct
57	Correct	157 ms	10764 KB	Output is correct
58	Correct	160 ms	10596 KB	Output is correct
59	Correct	157 ms	10592 KB	Output is correct
60	Correct	157 ms	10720 KB	Output is correct
61	Correct	154 ms	10592 KB	Output is correct
62	Correct	157 ms	10208 KB	Output is correct
63	Correct	157 ms	10208 KB	Output is correct
64	Correct	158 ms	10336 KB	Output is correct
65	Correct	162 ms	10212 KB	Output is correct
66	Correct	160 ms	10208 KB	Output is correct
67	Correct	138 ms	9824 KB	Output is correct
68	Correct	140 ms	9956 KB	Output is correct
69	Correct	150 ms	9996 KB	Output is correct
70	Correct	145 ms	9952 KB	Output is correct
71	Correct	330 ms	20020 KB	Output is correct
72	Correct	338 ms	19924 KB	Output is correct
73	Correct	322 ms	19924 KB	Output is correct
74	Correct	322 ms	19924 KB	Output is correct
75	Correct	324 ms	19920 KB	Output is correct
76	Correct	305 ms	19668 KB	Output is correct
77	Correct	312 ms	19784 KB	Output is correct
78	Correct	304 ms	19740 KB	Output is correct
79	Correct	316 ms	19668 KB	Output is correct
80	Correct	316 ms	19668 KB	Output is correct
81	Correct	181 ms	12008 KB	Output is correct
82	Correct	182 ms	11872 KB	Output is correct
83	Correct	190 ms	11952 KB	Output is correct
84	Correct	195 ms	11964 KB	Output is correct
85	Correct	185 ms	11868 KB	Output is correct
86	Correct	183 ms	11872 KB	Output is correct
87	Correct	187 ms	11872 KB	Output is correct
88	Correct	181 ms	11912 KB	Output is correct
89	Correct	187 ms	11876 KB	Output is correct
90	Correct	182 ms	11872 KB	Output is correct
91	Correct	154 ms	10456 KB	Output is correct
92	Correct	147 ms	10464 KB	Output is correct
93	Correct	150 ms	10592 KB	Output is correct
94	Correct	150 ms	10464 KB	Output is correct
95	Correct	146 ms	10464 KB	Output is correct
96	Correct	151 ms	10536 KB	Output is correct
97	Correct	148 ms	10464 KB	Output is correct
98	Correct	146 ms	10516 KB	Output is correct
99	Correct	151 ms	10464 KB	Output is correct
100	Correct	152 ms	10464 KB	Output is correct
101	Correct	4 ms	384 KB	Output is correct
102	Correct	6 ms	512 KB	Output is correct
103	Correct	7 ms	512 KB	Output is correct
104	Correct	6 ms	512 KB	Output is correct
105	Correct	6 ms	512 KB	Output is correct
106	Correct	6 ms	512 KB	Output is correct

답안 #247017

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 7.0 / 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
7.0 / 7.0