oj.uz

Submission #678995

# Submission time Handle Problem Language Result Execution time Memory
678995 2023-01-07T07:11:44 Z lunchbox1 Bulldozer (JOI17_bulldozer) C++17
100 / 100
 728 ms 63068 KB 
#include <algorithm>
#include <array>
#include <iostream>
#include <numeric>
using namespace std;

#define ar array
#define ll long long

const int N = 2e3, N_ = 1 << 11;

ar<int, 2> norm(ar<int, 2> a) {
 int g = gcd(a[0], a[1]);
 a[0] /= g, a[1] /= g;
 if (a[1] < 0)
  a[0] *= -1, a[1] *= -1;
 return a;
}
bool comp(const ar<int, 2>& a, const ar<int, 2>& b) {
 return 1LL * a[0] * b[1] < 1LL * b[0] * a[1];
}

ar<ll, 4> operator+(const ar<ll, 4>& u, const ar<ll, 4>& v) {
 return {u[0] + v[0], max(u[1], u[0] + v[1]), max(v[2], u[2] + v[0]), max(u[2] + v[1], max(u[3], v[3]))};
}

int n_;
ar<ll, 4> t[N_ * 2];

void update(int i, int w) {
 t[i += n_] = {w, max(0, w), max(0, w), max(0, w)};
 while (i >>= 1)
  t[i] = t[i << 1 | 0] + t[i << 1 | 1];
}

int main() {
 ios::sync_with_stdio(0), cin.tie(0);
 int n;
 cin >> n;
 n_ = 1;
 while (n_ < n)
  n_ <<= 1;
 static ar<int, 3> p[N];
 for (int i = 0; i < n; i++) {
  auto &[x, y, w] = p[i];
  cin >> x >> y >> w;
 }
 sort(p, p + n);
 static pair<ar<int, 2>, ar<int, 2>> e[N * (N - 1) / 2];
 int m = 0;
 for (int i = 0; i < n; i++)
  for (int j = i + 1; j < n; j++)
   if (p[i][0] != p[j][0])
    e[m++] = make_pair(norm({p[j][1] - p[i][1], p[j][0] - p[i][0]}), ar<int, 2>{i, j});
 stable_sort(e, e + m, [&](const pair<ar<int, 2>, ar<int, 2>>& a, const pair<ar<int, 2>, ar<int, 2>>& b) {
  return comp(a.first, b.first);
 });
 static int o[N];
 for (int i = 0; i < n; i++) {
  update(i, p[i][2]);
  o[i] = i;
 }
 ll ans = t[1][3];
 for (int h = 0; h < m; h++) {
  auto [s, ij] = e[h];
  auto [i, j] = ij;
  swap(o[i], o[j]);
  update(o[i], p[i][2]), update(o[j], p[j][2]);
  if (h == m - 1 || s != e[h + 1].first)
   ans = max(ans, t[1][3]);
 }
 cout << ans << '\n';
 return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 332 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 460 KB Output is correct
4 Correct 2 ms 460 KB Output is correct
5 Correct 2 ms 464 KB Output is correct
6 Correct 2 ms 456 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 456 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 232 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 456 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 2 ms 456 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 468 KB Output is correct

Subtask #3
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 460 KB Output is correct
4 Correct 2 ms 460 KB Output is correct
5 Correct 2 ms 464 KB Output is correct
6 Correct 2 ms 456 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 456 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 232 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 456 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 2 ms 456 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 468 KB Output is correct
33 Correct 695 ms 62936 KB Output is correct
34 Correct 688 ms 62980 KB Output is correct
35 Correct 694 ms 63052 KB Output is correct
36 Correct 705 ms 62920 KB Output is correct
37 Correct 712 ms 63040 KB Output is correct
38 Correct 689 ms 62936 KB Output is correct
39 Correct 685 ms 63008 KB Output is correct
40 Correct 697 ms 62920 KB Output is correct
41 Correct 690 ms 63000 KB Output is correct
42 Correct 706 ms 62956 KB Output is correct
43 Correct 651 ms 62948 KB Output is correct
44 Correct 651 ms 62992 KB Output is correct
45 Correct 650 ms 62904 KB Output is correct
46 Correct 656 ms 62992 KB Output is correct
47 Correct 650 ms 62908 KB Output is correct
48 Correct 675 ms 62924 KB Output is correct
49 Correct 671 ms 62884 KB Output is correct
50 Correct 650 ms 62980 KB Output is correct
51 Correct 675 ms 62916 KB Output is correct
52 Correct 654 ms 62976 KB Output is correct
53 Correct 655 ms 63068 KB Output is correct
54 Correct 658 ms 62988 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 460 KB Output is correct
4 Correct 2 ms 460 KB Output is correct
5 Correct 2 ms 464 KB Output is correct
6 Correct 2 ms 456 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 456 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 232 KB Output is correct
21 Correct 2 ms 468 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 456 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 2 ms 456 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 468 KB Output is correct
33 Correct 695 ms 62936 KB Output is correct
34 Correct 688 ms 62980 KB Output is correct
35 Correct 694 ms 63052 KB Output is correct
36 Correct 705 ms 62920 KB Output is correct
37 Correct 712 ms 63040 KB Output is correct
38 Correct 689 ms 62936 KB Output is correct
39 Correct 685 ms 63008 KB Output is correct
40 Correct 697 ms 62920 KB Output is correct
41 Correct 690 ms 63000 KB Output is correct
42 Correct 706 ms 62956 KB Output is correct
43 Correct 651 ms 62948 KB Output is correct
44 Correct 651 ms 62992 KB Output is correct
45 Correct 650 ms 62904 KB Output is correct
46 Correct 656 ms 62992 KB Output is correct
47 Correct 650 ms 62908 KB Output is correct
48 Correct 675 ms 62924 KB Output is correct
49 Correct 671 ms 62884 KB Output is correct
50 Correct 650 ms 62980 KB Output is correct
51 Correct 675 ms 62916 KB Output is correct
52 Correct 654 ms 62976 KB Output is correct
53 Correct 655 ms 63068 KB Output is correct
54 Correct 658 ms 62988 KB Output is correct
55 Correct 721 ms 62872 KB Output is correct
56 Correct 690 ms 62984 KB Output is correct
57 Correct 688 ms 62924 KB Output is correct
58 Correct 697 ms 62988 KB Output is correct
59 Correct 693 ms 62936 KB Output is correct
60 Correct 702 ms 62932 KB Output is correct
61 Correct 706 ms 62940 KB Output is correct
62 Correct 697 ms 62876 KB Output is correct
63 Correct 697 ms 62964 KB Output is correct
64 Correct 700 ms 63044 KB Output is correct
65 Correct 715 ms 62884 KB Output is correct
66 Correct 695 ms 62872 KB Output is correct
67 Correct 693 ms 62900 KB Output is correct
68 Correct 674 ms 62968 KB Output is correct
69 Correct 687 ms 62848 KB Output is correct
70 Correct 708 ms 62924 KB Output is correct
71 Correct 700 ms 62924 KB Output is correct
72 Correct 704 ms 62904 KB Output is correct
73 Correct 709 ms 62936 KB Output is correct
74 Correct 687 ms 62960 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 2 ms 456 KB Output is correct
18 Correct 2 ms 460 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 2 ms 464 KB Output is correct
21 Correct 2 ms 456 KB Output is correct
22 Correct 2 ms 468 KB Output is correct
23 Correct 2 ms 456 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 232 KB Output is correct
36 Correct 2 ms 468 KB Output is correct
37 Correct 2 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 2 ms 468 KB Output is correct
41 Correct 2 ms 456 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 2 ms 460 KB Output is correct
44 Correct 2 ms 456 KB Output is correct
45 Correct 2 ms 468 KB Output is correct
46 Correct 2 ms 468 KB Output is correct
47 Correct 2 ms 468 KB Output is correct
48 Correct 695 ms 62936 KB Output is correct
49 Correct 688 ms 62980 KB Output is correct
50 Correct 694 ms 63052 KB Output is correct
51 Correct 705 ms 62920 KB Output is correct
52 Correct 712 ms 63040 KB Output is correct
53 Correct 689 ms 62936 KB Output is correct
54 Correct 685 ms 63008 KB Output is correct
55 Correct 697 ms 62920 KB Output is correct
56 Correct 690 ms 63000 KB Output is correct
57 Correct 706 ms 62956 KB Output is correct
58 Correct 651 ms 62948 KB Output is correct
59 Correct 651 ms 62992 KB Output is correct
60 Correct 650 ms 62904 KB Output is correct
61 Correct 656 ms 62992 KB Output is correct
62 Correct 650 ms 62908 KB Output is correct
63 Correct 675 ms 62924 KB Output is correct
64 Correct 671 ms 62884 KB Output is correct
65 Correct 650 ms 62980 KB Output is correct
66 Correct 675 ms 62916 KB Output is correct
67 Correct 654 ms 62976 KB Output is correct
68 Correct 655 ms 63068 KB Output is correct
69 Correct 658 ms 62988 KB Output is correct
70 Correct 721 ms 62872 KB Output is correct
71 Correct 690 ms 62984 KB Output is correct
72 Correct 688 ms 62924 KB Output is correct
73 Correct 697 ms 62988 KB Output is correct
74 Correct 693 ms 62936 KB Output is correct
75 Correct 702 ms 62932 KB Output is correct
76 Correct 706 ms 62940 KB Output is correct
77 Correct 697 ms 62876 KB Output is correct
78 Correct 697 ms 62964 KB Output is correct
79 Correct 700 ms 63044 KB Output is correct
80 Correct 715 ms 62884 KB Output is correct
81 Correct 695 ms 62872 KB Output is correct
82 Correct 693 ms 62900 KB Output is correct
83 Correct 674 ms 62968 KB Output is correct
84 Correct 687 ms 62848 KB Output is correct
85 Correct 708 ms 62924 KB Output is correct
86 Correct 700 ms 62924 KB Output is correct
87 Correct 704 ms 62904 KB Output is correct
88 Correct 709 ms 62936 KB Output is correct
89 Correct 687 ms 62960 KB Output is correct
90 Correct 708 ms 63064 KB Output is correct
91 Correct 726 ms 62952 KB Output is correct
92 Correct 691 ms 62924 KB Output is correct
93 Correct 724 ms 62928 KB Output is correct
94 Correct 713 ms 62920 KB Output is correct
95 Correct 693 ms 62888 KB Output is correct
96 Correct 705 ms 62936 KB Output is correct
97 Correct 708 ms 62988 KB Output is correct
98 Correct 696 ms 62924 KB Output is correct
99 Correct 728 ms 62884 KB Output is correct
100 Correct 227 ms 31696 KB Output is correct
101 Correct 229 ms 31620 KB Output is correct
102 Correct 228 ms 31576 KB Output is correct
103 Correct 228 ms 31632 KB Output is correct
104 Correct 231 ms 31680 KB Output is correct
105 Correct 320 ms 42096 KB Output is correct
106 Correct 333 ms 42016 KB Output is correct
107 Correct 308 ms 42080 KB Output is correct
108 Correct 333 ms 42060 KB Output is correct
109 Correct 309 ms 42060 KB Output is correct
110 Correct 489 ms 61920 KB Output is correct
111 Correct 485 ms 61976 KB Output is correct
112 Correct 479 ms 61900 KB Output is correct
113 Correct 508 ms 61948 KB Output is correct
114 Correct 479 ms 61884 KB Output is correct
115 Correct 483 ms 62004 KB Output is correct
116 Correct 477 ms 61884 KB Output is correct
117 Correct 483 ms 61884 KB Output is correct
118 Correct 486 ms 61900 KB Output is correct
119 Correct 477 ms 61900 KB Output is correct
120 Correct 1 ms 340 KB Output is correct
121 Correct 0 ms 340 KB Output is correct
122 Correct 583 ms 62924 KB Output is correct
123 Correct 592 ms 62924 KB Output is correct
124 Correct 614 ms 62924 KB Output is correct
125 Correct 577 ms 62924 KB Output is correct
126 Correct 624 ms 62968 KB Output is correct
127 Correct 609 ms 62884 KB Output is correct
128 Correct 616 ms 62956 KB Output is correct
129 Correct 598 ms 62920 KB Output is correct
130 Correct 609 ms 63020 KB Output is correct
131 Correct 605 ms 62924 KB Output is correct
132 Correct 596 ms 62924 KB Output is correct
133 Correct 654 ms 62916 KB Output is correct