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답안 #770964

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
770964 2023-07-02T08:19:05 Z dxz05 Wish (LMIO19_noras) C++17
93 / 100
 611 ms 9048 KB 
//#pragma GCC optimize("Ofast,O3,unroll-loops")
//#pragma GCC target("avx,avx2")

#include <bits/stdc++.h>

using namespace std;

#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define bpc(x) __builtin_popcount(x)
#define bpcll(x) __builtin_popcountll(x)
#define MP make_pair
//#define endl '\n'

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

typedef long long ll;
const int MOD = 1e9 + 7;
const int N = 2005;

#define loop for (int it = 0; it < 200; it++)
#define ld long long

void solve(){
    int n; ld R;
    cin >> n >> R;

    R *= R;

    ld lim = 3e4;

    vector<ld> st, en;
    map<ld, int> mp;

    for (int i = 1; i <= n; i++){
        ld a, b, c, d;
        cin >> a >> b >> c >> d;

        auto dist = [&](ld t) -> ld{
            ld x = c - a, y = d - b;
            x = x * t + a;
            y = y * t + b;
            return x * x + y * y;
        };

        ld t = -1, dt = R + 5;

        ld l = 0, r = lim;
        loop{
            ld m1 = l + (r - l) / 3;
            ld m2 = r - (r - l) / 3;

            ld f1 = dist(m1), f2 = dist(m2);

            if (f1 < dt) t = m1, dt = f1;
            if (f2 < dt) t = m2, dt = f2;

            if (f1 < f2){
                r = m2;
            } else {
                l = m1;
            }

        }

        if (dt > R) continue;

        ld _st = t, _en = t;

        l = 0, r = t;
        loop{
            ld m = (l + r) / 2;
            if (dist(m) <= R){
                _st = min(_st, m);
                r = m;
            } else {
                l = m;
            }
        }

        l = t, r = lim;
        loop{
            ld m = (l + r) / 2;
            if (dist(m) <= R){
                _en = max(_en, m);
                l = m;
            } else {
                r = m;
            }
        }

        st.push_back(_st);
        en.push_back(_en);
        mp[_st] = mp[_en] = 0;
    }

    int z = 0;
    for (auto &now : mp) now.second = ++z;

    vector<int> cnt(z + 2, 0);
    for (int i = 0; i < (int) st.size(); i++){
        cnt[mp[st[i]]]++;
        cnt[mp[en[i]] + 1]--;
    }

    int ans = 0;
    for (int i = 1; i <= z + 1; i++){
        cnt[i] += cnt[i - 1];
        ans = max(ans, cnt[i]);
    }

    cout << ans << endl;

}

int main(){
    clock_t startTime = clock();
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif

    int test_cases = 1;
//    cin >> test_cases;

    for (int test = 1; test <= test_cases; test++){
        //cout << (solve() ? "YES" : "NO") << endl;
        solve();
    }

#ifdef LOCAL
    cerr << "Time: " << int((double) (clock() - startTime) / CLOCKS_PER_SEC * 1000) << " ms" << endl;
#endif

    return 0;
}

Compilation message

noras.cpp: In function 'int main()':
noras.cpp:117:13: warning: unused variable 'startTime' [-Wunused-variable]
  117 |     clock_t startTime = clock();
      |             ^~~~~~~~~

Subtask #1
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 368 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 3 ms 340 KB Output is correct

Subtask #2
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 368 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 235 ms 3600 KB Output is correct
24 Correct 249 ms 3512 KB Output is correct
25 Correct 231 ms 3568 KB Output is correct
26 Correct 234 ms 3844 KB Output is correct
27 Correct 198 ms 3176 KB Output is correct
28 Correct 244 ms 3516 KB Output is correct
29 Correct 231 ms 3772 KB Output is correct
30 Correct 234 ms 3636 KB Output is correct
31 Correct 232 ms 3616 KB Output is correct
32 Correct 262 ms 3688 KB Output is correct
33 Correct 256 ms 3920 KB Output is correct
34 Correct 258 ms 3768 KB Output is correct
35 Correct 258 ms 3788 KB Output is correct
36 Correct 255 ms 3796 KB Output is correct
37 Correct 212 ms 3100 KB Output is correct
38 Correct 209 ms 3060 KB Output is correct
39 Correct 199 ms 2928 KB Output is correct
40 Correct 212 ms 2832 KB Output is correct
41 Correct 206 ms 2848 KB Output is correct
42 Correct 198 ms 2976 KB Output is correct
43 Correct 597 ms 9028 KB Output is correct
44 Correct 611 ms 9048 KB Output is correct
45 Correct 589 ms 8968 KB Output is correct
46 Correct 595 ms 9000 KB Output is correct
47 Correct 588 ms 9012 KB Output is correct
48 Correct 530 ms 7192 KB Output is correct
49 Correct 513 ms 6944 KB Output is correct
50 Correct 517 ms 7000 KB Output is correct
51 Correct 518 ms 6948 KB Output is correct
52 Correct 513 ms 6996 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 368 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 0 ms 324 KB Output is correct
24 Correct 3 ms 336 KB Output is correct
25 Correct 3 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 3 ms 348 KB Output is correct
28 Correct 3 ms 340 KB Output is correct

Subtask #4
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 368 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 235 ms 3600 KB Output is correct
24 Correct 249 ms 3512 KB Output is correct
25 Correct 231 ms 3568 KB Output is correct
26 Correct 234 ms 3844 KB Output is correct
27 Correct 198 ms 3176 KB Output is correct
28 Correct 244 ms 3516 KB Output is correct
29 Correct 231 ms 3772 KB Output is correct
30 Correct 234 ms 3636 KB Output is correct
31 Correct 232 ms 3616 KB Output is correct
32 Correct 262 ms 3688 KB Output is correct
33 Correct 256 ms 3920 KB Output is correct
34 Correct 258 ms 3768 KB Output is correct
35 Correct 258 ms 3788 KB Output is correct
36 Correct 255 ms 3796 KB Output is correct
37 Correct 212 ms 3100 KB Output is correct
38 Correct 209 ms 3060 KB Output is correct
39 Correct 199 ms 2928 KB Output is correct
40 Correct 212 ms 2832 KB Output is correct
41 Correct 206 ms 2848 KB Output is correct
42 Correct 198 ms 2976 KB Output is correct
43 Correct 597 ms 9028 KB Output is correct
44 Correct 611 ms 9048 KB Output is correct
45 Correct 589 ms 8968 KB Output is correct
46 Correct 595 ms 9000 KB Output is correct
47 Correct 588 ms 9012 KB Output is correct
48 Correct 530 ms 7192 KB Output is correct
49 Correct 513 ms 6944 KB Output is correct
50 Correct 517 ms 7000 KB Output is correct
51 Correct 518 ms 6948 KB Output is correct
52 Correct 513 ms 6996 KB Output is correct
53 Correct 0 ms 324 KB Output is correct
54 Correct 3 ms 336 KB Output is correct
55 Correct 3 ms 340 KB Output is correct
56 Correct 2 ms 340 KB Output is correct
57 Correct 3 ms 348 KB Output is correct
58 Correct 3 ms 340 KB Output is correct
59 Correct 232 ms 3532 KB Output is correct
60 Correct 198 ms 3284 KB Output is correct
61 Correct 222 ms 3232 KB Output is correct
62 Correct 207 ms 3312 KB Output is correct
63 Correct 215 ms 3616 KB Output is correct
64 Correct 218 ms 3624 KB Output is correct
65 Correct 217 ms 3632 KB Output is correct
66 Correct 221 ms 3636 KB Output is correct
67 Correct 224 ms 3708 KB Output is correct
68 Correct 264 ms 3932 KB Output is correct
69 Correct 272 ms 3904 KB Output is correct
70 Correct 273 ms 3964 KB Output is correct
71 Correct 261 ms 3832 KB Output is correct
72 Correct 267 ms 3860 KB Output is correct
73 Correct 205 ms 2916 KB Output is correct
74 Correct 212 ms 3596 KB Output is correct
75 Correct 236 ms 3784 KB Output is correct
76 Correct 204 ms 2948 KB Output is correct
77 Correct 572 ms 8656 KB Output is correct
78 Correct 562 ms 8676 KB Output is correct
79 Correct 585 ms 8620 KB Output is correct
80 Correct 569 ms 8672 KB Output is correct
81 Correct 570 ms 8592 KB Output is correct
82 Correct 529 ms 7436 KB Output is correct
83 Correct 533 ms 7428 KB Output is correct
84 Correct 524 ms 7400 KB Output is correct
85 Correct 544 ms 7380 KB Output is correct
86 Correct 549 ms 7480 KB Output is correct

Subtask #5
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 3 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 340 KB Output is correct
16 Correct 3 ms 340 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Correct 3 ms 368 KB Output is correct
20 Correct 3 ms 340 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 235 ms 3600 KB Output is correct
24 Correct 249 ms 3512 KB Output is correct
25 Correct 231 ms 3568 KB Output is correct
26 Correct 234 ms 3844 KB Output is correct
27 Correct 198 ms 3176 KB Output is correct
28 Correct 244 ms 3516 KB Output is correct
29 Correct 231 ms 3772 KB Output is correct
30 Correct 234 ms 3636 KB Output is correct
31 Correct 232 ms 3616 KB Output is correct
32 Correct 262 ms 3688 KB Output is correct
33 Correct 256 ms 3920 KB Output is correct
34 Correct 258 ms 3768 KB Output is correct
35 Correct 258 ms 3788 KB Output is correct
36 Correct 255 ms 3796 KB Output is correct
37 Correct 212 ms 3100 KB Output is correct
38 Correct 209 ms 3060 KB Output is correct
39 Correct 199 ms 2928 KB Output is correct
40 Correct 212 ms 2832 KB Output is correct
41 Correct 206 ms 2848 KB Output is correct
42 Correct 198 ms 2976 KB Output is correct
43 Correct 597 ms 9028 KB Output is correct
44 Correct 611 ms 9048 KB Output is correct
45 Correct 589 ms 8968 KB Output is correct
46 Correct 595 ms 9000 KB Output is correct
47 Correct 588 ms 9012 KB Output is correct
48 Correct 530 ms 7192 KB Output is correct
49 Correct 513 ms 6944 KB Output is correct
50 Correct 517 ms 7000 KB Output is correct
51 Correct 518 ms 6948 KB Output is correct
52 Correct 513 ms 6996 KB Output is correct
53 Correct 232 ms 3532 KB Output is correct
54 Correct 198 ms 3284 KB Output is correct
55 Correct 222 ms 3232 KB Output is correct
56 Correct 207 ms 3312 KB Output is correct
57 Correct 215 ms 3616 KB Output is correct
58 Correct 218 ms 3624 KB Output is correct
59 Correct 217 ms 3632 KB Output is correct
60 Correct 221 ms 3636 KB Output is correct
61 Correct 224 ms 3708 KB Output is correct
62 Correct 264 ms 3932 KB Output is correct
63 Correct 272 ms 3904 KB Output is correct
64 Correct 273 ms 3964 KB Output is correct
65 Correct 261 ms 3832 KB Output is correct
66 Correct 267 ms 3860 KB Output is correct
67 Correct 205 ms 2916 KB Output is correct
68 Correct 212 ms 3596 KB Output is correct
69 Correct 236 ms 3784 KB Output is correct
70 Correct 204 ms 2948 KB Output is correct
71 Correct 572 ms 8656 KB Output is correct
72 Correct 562 ms 8676 KB Output is correct
73 Correct 585 ms 8620 KB Output is correct
74 Correct 569 ms 8672 KB Output is correct
75 Correct 570 ms 8592 KB Output is correct
76 Correct 529 ms 7436 KB Output is correct
77 Correct 533 ms 7428 KB Output is correct
78 Correct 524 ms 7400 KB Output is correct
79 Correct 544 ms 7380 KB Output is correct
80 Correct 549 ms 7480 KB Output is correct
81 Correct 0 ms 324 KB Output is correct
82 Correct 3 ms 336 KB Output is correct
83 Correct 3 ms 340 KB Output is correct
84 Correct 2 ms 340 KB Output is correct
85 Correct 3 ms 348 KB Output is correct
86 Correct 3 ms 340 KB Output is correct
87 Incorrect 181 ms 4260 KB Output isn't correct
88 Halted 0 ms 0 KB -