oj.uz

Submission #737700

# Submission time Handle Problem Language Result Execution time Memory
737700 2023-05-07T14:58:06 Z iee Catfish Farm (IOI22_fish) C++17
100 / 100
 601 ms 109148 KB 
#include <bits/stdc++.h>
#include "fish.h"
using namespace std;
using ll = long long;
const int N = 1e5 + 5;
map<int, ll> v[N], h[N];
vector<ll> f[N];
vector<int> pos[N];
vector<pair<int, ll>> S[N];
ll s(int p, int u) {
  if (auto it = lower_bound(S[p].begin(), S[p].end(), pair(u + 1, (ll) -1e18)); it != S[p].begin()) return prev(it)->second;
  return 0;
}
ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
  for (int i = 0; i < m; ++i)
    v[x[i] + 1][y[i] + 1] += w[i], pos[x[i] + 1].push_back(y[i]); 
  for (int i = 1; i <= n; ++i) {
    sort(pos[i].begin(), pos[i].end()), pos[i].push_back(n);
    ll c = 0;
    for (auto [p, v]: v[i])
      c += v, S[i].emplace_back(p, c);
  }
  for (int j: pos[1])
    h[1][j] = 0;
  f[1].resize(pos[1].size());
  for (int i = 2; i <= n; ++i) {
    f[i].resize(pos[i].size());
    auto g = pos[i - 1].size() - 1;
    ll ma = -1e18;
    for (int j = (int) pos[i].size() - 1; j >= 0; --j) {
      while (~g && pos[i - 1][g] >= pos[i][j])
        ma = max(ma, f[i - 1][g] + s(i, pos[i - 1][g])), --g;
      f[i][j] = ma - s(i, pos[i][j]);
    }
    auto l = h[i - 1].begin();
    ma = -1e18;
    for (int j = 0; j < pos[i].size(); ++j) {
      while (l != h[i - 1].end() && l->first <= pos[i][j])
        ma = max(ma, l->second - s(i - 1, l->first)), ++l;
      f[i][j] = max(f[i][j], h[i][pos[i][j]] = ma + s(i - 1, pos[i][j]));
    }
    for (int j = 0; j < pos[i - 1].size(); ++j)
      h[i][pos[i - 1][j]] = max(h[i][pos[i - 1][j]], f[i - 1][j] + s(i, pos[i - 1][j]));
  }
  ll mx = 0;
  for (ll v: f[n])
    mx = max(mx, v);
  return mx;
}

Compilation message

fish.cpp: In function 'll max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:37:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for (int j = 0; j < pos[i].size(); ++j) {
      |                     ~~^~~~~~~~~~~~~~~
fish.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for (int j = 0; j < pos[i - 1].size(); ++j)
      |                     ~~^~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 155 ms 48720 KB Output is correct
2 Correct 182 ms 54860 KB Output is correct
3 Correct 30 ms 29148 KB Output is correct
4 Correct 29 ms 29216 KB Output is correct
5 Correct 599 ms 107280 KB Output is correct
6 Correct 434 ms 109148 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16724 KB Output is correct
2 Correct 307 ms 64808 KB Output is correct
3 Correct 379 ms 74176 KB Output is correct
4 Correct 142 ms 48628 KB Output is correct
5 Correct 187 ms 54848 KB Output is correct
6 Correct 9 ms 16724 KB Output is correct
7 Correct 9 ms 16624 KB Output is correct
8 Correct 11 ms 16736 KB Output is correct
9 Correct 9 ms 16692 KB Output is correct
10 Correct 31 ms 29132 KB Output is correct
11 Correct 30 ms 29220 KB Output is correct
12 Correct 172 ms 48776 KB Output is correct
13 Correct 173 ms 54988 KB Output is correct
14 Correct 151 ms 48736 KB Output is correct
15 Correct 166 ms 49904 KB Output is correct
16 Correct 152 ms 48700 KB Output is correct
17 Correct 173 ms 52304 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 29260 KB Output is correct
2 Correct 32 ms 29212 KB Output is correct
3 Correct 76 ms 38876 KB Output is correct
4 Correct 61 ms 36668 KB Output is correct
5 Correct 133 ms 48844 KB Output is correct
6 Correct 127 ms 48228 KB Output is correct
7 Correct 120 ms 48736 KB Output is correct
8 Correct 124 ms 48824 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16740 KB Output is correct
2 Correct 10 ms 16724 KB Output is correct
3 Correct 10 ms 16724 KB Output is correct
4 Correct 9 ms 16740 KB Output is correct
5 Correct 9 ms 16744 KB Output is correct
6 Correct 9 ms 16724 KB Output is correct
7 Correct 9 ms 16684 KB Output is correct
8 Correct 10 ms 16724 KB Output is correct
9 Correct 9 ms 16852 KB Output is correct
10 Correct 11 ms 17236 KB Output is correct
11 Correct 11 ms 16924 KB Output is correct
12 Correct 10 ms 16980 KB Output is correct
13 Correct 9 ms 16724 KB Output is correct
14 Correct 10 ms 16880 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16740 KB Output is correct
2 Correct 10 ms 16724 KB Output is correct
3 Correct 10 ms 16724 KB Output is correct
4 Correct 9 ms 16740 KB Output is correct
5 Correct 9 ms 16744 KB Output is correct
6 Correct 9 ms 16724 KB Output is correct
7 Correct 9 ms 16684 KB Output is correct
8 Correct 10 ms 16724 KB Output is correct
9 Correct 9 ms 16852 KB Output is correct
10 Correct 11 ms 17236 KB Output is correct
11 Correct 11 ms 16924 KB Output is correct
12 Correct 10 ms 16980 KB Output is correct
13 Correct 9 ms 16724 KB Output is correct
14 Correct 10 ms 16880 KB Output is correct
15 Correct 9 ms 16736 KB Output is correct
16 Correct 11 ms 17236 KB Output is correct
17 Correct 58 ms 26248 KB Output is correct
18 Correct 59 ms 26536 KB Output is correct
19 Correct 56 ms 26376 KB Output is correct
20 Correct 52 ms 26016 KB Output is correct
21 Correct 49 ms 26028 KB Output is correct
22 Correct 111 ms 35308 KB Output is correct
23 Correct 19 ms 19028 KB Output is correct
24 Correct 43 ms 23868 KB Output is correct
25 Correct 11 ms 16980 KB Output is correct
26 Correct 21 ms 18800 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16740 KB Output is correct
2 Correct 10 ms 16724 KB Output is correct
3 Correct 10 ms 16724 KB Output is correct
4 Correct 9 ms 16740 KB Output is correct
5 Correct 9 ms 16744 KB Output is correct
6 Correct 9 ms 16724 KB Output is correct
7 Correct 9 ms 16684 KB Output is correct
8 Correct 10 ms 16724 KB Output is correct
9 Correct 9 ms 16852 KB Output is correct
10 Correct 11 ms 17236 KB Output is correct
11 Correct 11 ms 16924 KB Output is correct
12 Correct 10 ms 16980 KB Output is correct
13 Correct 9 ms 16724 KB Output is correct
14 Correct 10 ms 16880 KB Output is correct
15 Correct 9 ms 16736 KB Output is correct
16 Correct 11 ms 17236 KB Output is correct
17 Correct 58 ms 26248 KB Output is correct
18 Correct 59 ms 26536 KB Output is correct
19 Correct 56 ms 26376 KB Output is correct
20 Correct 52 ms 26016 KB Output is correct
21 Correct 49 ms 26028 KB Output is correct
22 Correct 111 ms 35308 KB Output is correct
23 Correct 19 ms 19028 KB Output is correct
24 Correct 43 ms 23868 KB Output is correct
25 Correct 11 ms 16980 KB Output is correct
26 Correct 21 ms 18800 KB Output is correct
27 Correct 14 ms 17776 KB Output is correct
28 Correct 328 ms 63200 KB Output is correct
29 Correct 498 ms 83284 KB Output is correct
30 Correct 501 ms 95048 KB Output is correct
31 Correct 496 ms 94928 KB Output is correct
32 Correct 426 ms 77876 KB Output is correct
33 Correct 478 ms 95640 KB Output is correct
34 Correct 479 ms 95560 KB Output is correct
35 Correct 149 ms 45872 KB Output is correct
36 Correct 461 ms 93948 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 29260 KB Output is correct
2 Correct 32 ms 29212 KB Output is correct
3 Correct 76 ms 38876 KB Output is correct
4 Correct 61 ms 36668 KB Output is correct
5 Correct 133 ms 48844 KB Output is correct
6 Correct 127 ms 48228 KB Output is correct
7 Correct 120 ms 48736 KB Output is correct
8 Correct 124 ms 48824 KB Output is correct
9 Correct 173 ms 54864 KB Output is correct
10 Correct 117 ms 41840 KB Output is correct
11 Correct 232 ms 67160 KB Output is correct
12 Correct 9 ms 16744 KB Output is correct
13 Correct 10 ms 16740 KB Output is correct
14 Correct 9 ms 16724 KB Output is correct
15 Correct 11 ms 16724 KB Output is correct
16 Correct 9 ms 16724 KB Output is correct
17 Correct 9 ms 16724 KB Output is correct
18 Correct 29 ms 29152 KB Output is correct
19 Correct 29 ms 29148 KB Output is correct
20 Correct 29 ms 29224 KB Output is correct
21 Correct 30 ms 29240 KB Output is correct
22 Correct 147 ms 54976 KB Output is correct
23 Correct 246 ms 73352 KB Output is correct
24 Correct 255 ms 73876 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 155 ms 48720 KB Output is correct
2 Correct 182 ms 54860 KB Output is correct
3 Correct 30 ms 29148 KB Output is correct
4 Correct 29 ms 29216 KB Output is correct
5 Correct 599 ms 107280 KB Output is correct
6 Correct 434 ms 109148 KB Output is correct
7 Correct 9 ms 16724 KB Output is correct
8 Correct 307 ms 64808 KB Output is correct
9 Correct 379 ms 74176 KB Output is correct
10 Correct 142 ms 48628 KB Output is correct
11 Correct 187 ms 54848 KB Output is correct
12 Correct 9 ms 16724 KB Output is correct
13 Correct 9 ms 16624 KB Output is correct
14 Correct 11 ms 16736 KB Output is correct
15 Correct 9 ms 16692 KB Output is correct
16 Correct 31 ms 29132 KB Output is correct
17 Correct 30 ms 29220 KB Output is correct
18 Correct 172 ms 48776 KB Output is correct
19 Correct 173 ms 54988 KB Output is correct
20 Correct 151 ms 48736 KB Output is correct
21 Correct 166 ms 49904 KB Output is correct
22 Correct 152 ms 48700 KB Output is correct
23 Correct 173 ms 52304 KB Output is correct
24 Correct 31 ms 29260 KB Output is correct
25 Correct 32 ms 29212 KB Output is correct
26 Correct 76 ms 38876 KB Output is correct
27 Correct 61 ms 36668 KB Output is correct
28 Correct 133 ms 48844 KB Output is correct
29 Correct 127 ms 48228 KB Output is correct
30 Correct 120 ms 48736 KB Output is correct
31 Correct 124 ms 48824 KB Output is correct
32 Correct 9 ms 16740 KB Output is correct
33 Correct 10 ms 16724 KB Output is correct
34 Correct 10 ms 16724 KB Output is correct
35 Correct 9 ms 16740 KB Output is correct
36 Correct 9 ms 16744 KB Output is correct
37 Correct 9 ms 16724 KB Output is correct
38 Correct 9 ms 16684 KB Output is correct
39 Correct 10 ms 16724 KB Output is correct
40 Correct 9 ms 16852 KB Output is correct
41 Correct 11 ms 17236 KB Output is correct
42 Correct 11 ms 16924 KB Output is correct
43 Correct 10 ms 16980 KB Output is correct
44 Correct 9 ms 16724 KB Output is correct
45 Correct 10 ms 16880 KB Output is correct
46 Correct 9 ms 16736 KB Output is correct
47 Correct 11 ms 17236 KB Output is correct
48 Correct 58 ms 26248 KB Output is correct
49 Correct 59 ms 26536 KB Output is correct
50 Correct 56 ms 26376 KB Output is correct
51 Correct 52 ms 26016 KB Output is correct
52 Correct 49 ms 26028 KB Output is correct
53 Correct 111 ms 35308 KB Output is correct
54 Correct 19 ms 19028 KB Output is correct
55 Correct 43 ms 23868 KB Output is correct
56 Correct 11 ms 16980 KB Output is correct
57 Correct 21 ms 18800 KB Output is correct
58 Correct 14 ms 17776 KB Output is correct
59 Correct 328 ms 63200 KB Output is correct
60 Correct 498 ms 83284 KB Output is correct
61 Correct 501 ms 95048 KB Output is correct
62 Correct 496 ms 94928 KB Output is correct
63 Correct 426 ms 77876 KB Output is correct
64 Correct 478 ms 95640 KB Output is correct
65 Correct 479 ms 95560 KB Output is correct
66 Correct 149 ms 45872 KB Output is correct
67 Correct 461 ms 93948 KB Output is correct
68 Correct 173 ms 54864 KB Output is correct
69 Correct 117 ms 41840 KB Output is correct
70 Correct 232 ms 67160 KB Output is correct
71 Correct 9 ms 16744 KB Output is correct
72 Correct 10 ms 16740 KB Output is correct
73 Correct 9 ms 16724 KB Output is correct
74 Correct 11 ms 16724 KB Output is correct
75 Correct 9 ms 16724 KB Output is correct
76 Correct 9 ms 16724 KB Output is correct
77 Correct 29 ms 29152 KB Output is correct
78 Correct 29 ms 29148 KB Output is correct
79 Correct 29 ms 29224 KB Output is correct
80 Correct 30 ms 29240 KB Output is correct
81 Correct 147 ms 54976 KB Output is correct
82 Correct 246 ms 73352 KB Output is correct
83 Correct 255 ms 73876 KB Output is correct
84 Correct 601 ms 102968 KB Output is correct
85 Correct 574 ms 103500 KB Output is correct
86 Correct 427 ms 106148 KB Output is correct
87 Correct 421 ms 107976 KB Output is correct
88 Correct 12 ms 16660 KB Output is correct
89 Correct 446 ms 108092 KB Output is correct
90 Correct 473 ms 102348 KB Output is correct
91 Correct 424 ms 93720 KB Output is correct