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답안 #199923

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
199923 2020-02-04T05:32:26 Z SamAnd Wish (LMIO19_noras) C++17
93 / 100
 320 ms 29024 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
struct ban
{
    long long x;
    int z;
    ban(){}
    ban(long long x, int z)
    {
        this->x = x;
        this->z = z;
    }
};
bool operator<(const ban& a, const ban& b)
{
    if (a.x < b.x)
        return true;
    if (a.x > b.x)
        return false;
    return a.z < b.z;
}

int n;
long double R;
long double a[N], b[N], c[N], d[N];

long long l[N], r[N];

int main()
{
    //freopen("input.txt", "r", stdin);
    ios_base::sync_with_stdio(false);
    cin >> n >> R;
    for (int i = 1; i <= n; ++i)
    {
        cin >> a[i] >> b[i] >> c[i] >> d[i];
        c[i] -= a[i];
        d[i] -= b[i];
        long double aa = c[i] * c[i] + d[i] * d[i];
        long double bb = 2 * a[i] * c[i] + 2 * b[i] * d[i];
        long double cc = a[i] * a[i] + b[i] * b[i] - R * R;
        long double D = bb * bb - 4 * aa * cc;
        if (D < 0)
        {
            r[i] = -1;
            continue;
        }
        long double ll = (-sqrt(D) - bb) / (2 * aa);
        long double rr = (sqrt(D) - bb) / (2 * aa);
        if (ll > 0)
        {
            l[i] = ll;
            if (ll != l[i])
                ++l[i];
        }
        if (rr >= 0)
        {
            r[i] = rr;
        }
        else
        {
            r[i] = -1;
        }
    }
    vector<ban> v;
    for (int i = 1; i <= n; ++i)
    {
        v.push_back(ban(l[i], 1));
        v.push_back(ban(r[i] + 1, -1));
    }
    sort(v.begin(), v.end());
    int ans = 0;
    int yans = 0;
    for (int i = 0; i < v.size(); ++i)
    {
        yans += v[i].z;
        ans = max(ans, yans);
    }
    cout << ans << endl;
    return 0;
}

Compilation message

noras.cpp: In function 'int main()':
noras.cpp:75:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < v.size(); ++i)
                     ~~^~~~~~~~~~

Subtask #1
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 504 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 528 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 6 ms 504 KB Output is correct
15 Correct 7 ms 504 KB Output is correct
16 Correct 6 ms 504 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 632 KB Output is correct
19 Correct 6 ms 504 KB Output is correct
20 Correct 6 ms 504 KB Output is correct
21 Correct 6 ms 504 KB Output is correct
22 Correct 7 ms 508 KB Output is correct

Subtask #2
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 504 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 528 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 6 ms 504 KB Output is correct
15 Correct 7 ms 504 KB Output is correct
16 Correct 6 ms 504 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 632 KB Output is correct
19 Correct 6 ms 504 KB Output is correct
20 Correct 6 ms 504 KB Output is correct
21 Correct 6 ms 504 KB Output is correct
22 Correct 7 ms 508 KB Output is correct
23 Correct 145 ms 14032 KB Output is correct
24 Correct 130 ms 14056 KB Output is correct
25 Correct 139 ms 14060 KB Output is correct
26 Correct 128 ms 14212 KB Output is correct
27 Correct 141 ms 14440 KB Output is correct
28 Correct 140 ms 14140 KB Output is correct
29 Correct 142 ms 14188 KB Output is correct
30 Correct 140 ms 14164 KB Output is correct
31 Correct 142 ms 14184 KB Output is correct
32 Correct 154 ms 14184 KB Output is correct
33 Correct 155 ms 14184 KB Output is correct
34 Correct 154 ms 14184 KB Output is correct
35 Correct 150 ms 14180 KB Output is correct
36 Correct 149 ms 14260 KB Output is correct
37 Correct 136 ms 14056 KB Output is correct
38 Correct 136 ms 14060 KB Output is correct
39 Correct 130 ms 14060 KB Output is correct
40 Correct 146 ms 14060 KB Output is correct
41 Correct 137 ms 13928 KB Output is correct
42 Correct 144 ms 14184 KB Output is correct
43 Correct 314 ms 28640 KB Output is correct
44 Correct 312 ms 28640 KB Output is correct
45 Correct 307 ms 29024 KB Output is correct
46 Correct 301 ms 28636 KB Output is correct
47 Correct 317 ms 28744 KB Output is correct
48 Correct 289 ms 27872 KB Output is correct
49 Correct 283 ms 27872 KB Output is correct
50 Correct 305 ms 27876 KB Output is correct
51 Correct 300 ms 27876 KB Output is correct
52 Correct 306 ms 27888 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 504 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 528 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 6 ms 504 KB Output is correct
15 Correct 7 ms 504 KB Output is correct
16 Correct 6 ms 504 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 632 KB Output is correct
19 Correct 6 ms 504 KB Output is correct
20 Correct 6 ms 504 KB Output is correct
21 Correct 6 ms 504 KB Output is correct
22 Correct 7 ms 508 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 504 KB Output is correct
25 Correct 6 ms 504 KB Output is correct
26 Correct 6 ms 504 KB Output is correct
27 Correct 6 ms 504 KB Output is correct
28 Correct 7 ms 504 KB Output is correct

Subtask #4
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 504 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 528 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 6 ms 504 KB Output is correct
15 Correct 7 ms 504 KB Output is correct
16 Correct 6 ms 504 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 632 KB Output is correct
19 Correct 6 ms 504 KB Output is correct
20 Correct 6 ms 504 KB Output is correct
21 Correct 6 ms 504 KB Output is correct
22 Correct 7 ms 508 KB Output is correct
23 Correct 145 ms 14032 KB Output is correct
24 Correct 130 ms 14056 KB Output is correct
25 Correct 139 ms 14060 KB Output is correct
26 Correct 128 ms 14212 KB Output is correct
27 Correct 141 ms 14440 KB Output is correct
28 Correct 140 ms 14140 KB Output is correct
29 Correct 142 ms 14188 KB Output is correct
30 Correct 140 ms 14164 KB Output is correct
31 Correct 142 ms 14184 KB Output is correct
32 Correct 154 ms 14184 KB Output is correct
33 Correct 155 ms 14184 KB Output is correct
34 Correct 154 ms 14184 KB Output is correct
35 Correct 150 ms 14180 KB Output is correct
36 Correct 149 ms 14260 KB Output is correct
37 Correct 136 ms 14056 KB Output is correct
38 Correct 136 ms 14060 KB Output is correct
39 Correct 130 ms 14060 KB Output is correct
40 Correct 146 ms 14060 KB Output is correct
41 Correct 137 ms 13928 KB Output is correct
42 Correct 144 ms 14184 KB Output is correct
43 Correct 314 ms 28640 KB Output is correct
44 Correct 312 ms 28640 KB Output is correct
45 Correct 307 ms 29024 KB Output is correct
46 Correct 301 ms 28636 KB Output is correct
47 Correct 317 ms 28744 KB Output is correct
48 Correct 289 ms 27872 KB Output is correct
49 Correct 283 ms 27872 KB Output is correct
50 Correct 305 ms 27876 KB Output is correct
51 Correct 300 ms 27876 KB Output is correct
52 Correct 306 ms 27888 KB Output is correct
53 Correct 126 ms 14056 KB Output is correct
54 Correct 142 ms 14576 KB Output is correct
55 Correct 145 ms 14440 KB Output is correct
56 Correct 152 ms 14440 KB Output is correct
57 Correct 154 ms 14440 KB Output is correct
58 Correct 147 ms 14436 KB Output is correct
59 Correct 150 ms 14692 KB Output is correct
60 Correct 148 ms 14568 KB Output is correct
61 Correct 148 ms 14568 KB Output is correct
62 Correct 150 ms 14316 KB Output is correct
63 Correct 149 ms 14316 KB Output is correct
64 Correct 151 ms 14312 KB Output is correct
65 Correct 155 ms 14308 KB Output is correct
66 Correct 162 ms 14336 KB Output is correct
67 Correct 135 ms 13928 KB Output is correct
68 Correct 138 ms 14056 KB Output is correct
69 Correct 133 ms 14056 KB Output is correct
70 Correct 140 ms 14184 KB Output is correct
71 Correct 296 ms 28640 KB Output is correct
72 Correct 301 ms 28640 KB Output is correct
73 Correct 304 ms 28640 KB Output is correct
74 Correct 314 ms 28640 KB Output is correct
75 Correct 311 ms 28640 KB Output is correct
76 Correct 309 ms 28128 KB Output is correct
77 Correct 311 ms 28128 KB Output is correct
78 Correct 301 ms 28128 KB Output is correct
79 Correct 309 ms 28128 KB Output is correct
80 Correct 320 ms 28172 KB Output is correct
81 Correct 5 ms 376 KB Output is correct
82 Correct 6 ms 504 KB Output is correct
83 Correct 6 ms 504 KB Output is correct
84 Correct 6 ms 504 KB Output is correct
85 Correct 6 ms 504 KB Output is correct
86 Correct 7 ms 504 KB Output is correct

Subtask #5
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 504 KB Output is correct
4 Correct 6 ms 504 KB Output is correct
5 Correct 7 ms 528 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 6 ms 504 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 6 ms 504 KB Output is correct
15 Correct 7 ms 504 KB Output is correct
16 Correct 6 ms 504 KB Output is correct
17 Correct 6 ms 504 KB Output is correct
18 Correct 6 ms 632 KB Output is correct
19 Correct 6 ms 504 KB Output is correct
20 Correct 6 ms 504 KB Output is correct
21 Correct 6 ms 504 KB Output is correct
22 Correct 7 ms 508 KB Output is correct
23 Correct 145 ms 14032 KB Output is correct
24 Correct 130 ms 14056 KB Output is correct
25 Correct 139 ms 14060 KB Output is correct
26 Correct 128 ms 14212 KB Output is correct
27 Correct 141 ms 14440 KB Output is correct
28 Correct 140 ms 14140 KB Output is correct
29 Correct 142 ms 14188 KB Output is correct
30 Correct 140 ms 14164 KB Output is correct
31 Correct 142 ms 14184 KB Output is correct
32 Correct 154 ms 14184 KB Output is correct
33 Correct 155 ms 14184 KB Output is correct
34 Correct 154 ms 14184 KB Output is correct
35 Correct 150 ms 14180 KB Output is correct
36 Correct 149 ms 14260 KB Output is correct
37 Correct 136 ms 14056 KB Output is correct
38 Correct 136 ms 14060 KB Output is correct
39 Correct 130 ms 14060 KB Output is correct
40 Correct 146 ms 14060 KB Output is correct
41 Correct 137 ms 13928 KB Output is correct
42 Correct 144 ms 14184 KB Output is correct
43 Correct 314 ms 28640 KB Output is correct
44 Correct 312 ms 28640 KB Output is correct
45 Correct 307 ms 29024 KB Output is correct
46 Correct 301 ms 28636 KB Output is correct
47 Correct 317 ms 28744 KB Output is correct
48 Correct 289 ms 27872 KB Output is correct
49 Correct 283 ms 27872 KB Output is correct
50 Correct 305 ms 27876 KB Output is correct
51 Correct 300 ms 27876 KB Output is correct
52 Correct 306 ms 27888 KB Output is correct
53 Correct 126 ms 14056 KB Output is correct
54 Correct 142 ms 14576 KB Output is correct
55 Correct 145 ms 14440 KB Output is correct
56 Correct 152 ms 14440 KB Output is correct
57 Correct 154 ms 14440 KB Output is correct
58 Correct 147 ms 14436 KB Output is correct
59 Correct 150 ms 14692 KB Output is correct
60 Correct 148 ms 14568 KB Output is correct
61 Correct 148 ms 14568 KB Output is correct
62 Correct 150 ms 14316 KB Output is correct
63 Correct 149 ms 14316 KB Output is correct
64 Correct 151 ms 14312 KB Output is correct
65 Correct 155 ms 14308 KB Output is correct
66 Correct 162 ms 14336 KB Output is correct
67 Correct 135 ms 13928 KB Output is correct
68 Correct 138 ms 14056 KB Output is correct
69 Correct 133 ms 14056 KB Output is correct
70 Correct 140 ms 14184 KB Output is correct
71 Correct 296 ms 28640 KB Output is correct
72 Correct 301 ms 28640 KB Output is correct
73 Correct 304 ms 28640 KB Output is correct
74 Correct 314 ms 28640 KB Output is correct
75 Correct 311 ms 28640 KB Output is correct
76 Correct 309 ms 28128 KB Output is correct
77 Correct 311 ms 28128 KB Output is correct
78 Correct 301 ms 28128 KB Output is correct
79 Correct 309 ms 28128 KB Output is correct
80 Correct 320 ms 28172 KB Output is correct
81 Correct 197 ms 15976 KB Output is correct
82 Correct 179 ms 16104 KB Output is correct
83 Correct 176 ms 15976 KB Output is correct
84 Correct 194 ms 16080 KB Output is correct
85 Correct 182 ms 16108 KB Output is correct
86 Correct 176 ms 15976 KB Output is correct
87 Correct 180 ms 16148 KB Output is correct
88 Correct 179 ms 16104 KB Output is correct
89 Correct 177 ms 15976 KB Output is correct
90 Correct 179 ms 15976 KB Output is correct
91 Correct 150 ms 14908 KB Output is correct
92 Incorrect 146 ms 14824 KB Output isn't correct
93 Halted 0 ms 0 KB -