oj.uz

Submission #1008804

# Submission time Handle Problem Language Result Execution time Memory
1008804 2024-06-26T19:28:19 Z cpdreamer Catfish Farm (IOI22_fish) C++17
100 / 100
 181 ms 34644 KB 
#include "fish.h"

#include <climits>

#include <algorithm>
#include <numeric>
#include <utility>
#include <vector>

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
  std::vector<std::vector<std::pair<int, long long>>> fish(N + 2);
  for (int i = 0; i < M; ++i) {
    fish[X[i] + 1].emplace_back(Y[i], W[i]);
  }

  fish[0] = {{-1, 0LL}};
  for (int i = 1; i <= N; ++i) {
    fish[i].emplace_back(-1, 0LL);
    std::sort(fish[i].begin(), fish[i].end());
    for (int j = 1; j < static_cast<int>(fish[i].size()); ++j) {
      fish[i][j].second += fish[i][j - 1].second;
    }
  }
  fish[N + 1] = {{-1, 0LL}};

  auto getRowWeight = [&](int row, int col) {
    return (upper_bound(fish[row].begin(), fish[row].end(), std::make_pair(col, LLONG_MAX)) - 1)->second;
  };

  std::vector<std::vector<int>> indices(N + 2);
  indices[0] = {-1};
  for (int i = 1; i <= N; ++i) {
    for (std::pair<int, int> f : fish[i - 1]) {
      indices[i].push_back(f.first);
    }
    for (std::pair<int, int> f : fish[i + 1]) {
      indices[i].push_back(f.first);
    }
    std::sort(indices[i].begin(), indices[i].end());
    indices[i].erase(std::unique(indices[i].begin(), indices[i].end()), indices[i].end());
  }
  indices[N + 1] = {-1};

  std::vector<long long> dpInc = {0LL}, dpDec = {0LL};
  for (int i = 1; i <= N + 1; ++i) {
    std::vector<long long> ndpInc(indices[i].size());
    long long pref = 0LL;
    int pidx = 0;
    for (int j = 0; j < static_cast<int>(indices[i].size()); ++j) {
      int col = indices[i][j];
      while (pidx < static_cast<int>(indices[i - 1].size()) && indices[i - 1][pidx] <= col) {
        pref = std::max(pref, dpInc[pidx] - getRowWeight(i - 1, indices[i - 1][pidx]));
        ++pidx;
      }
      ndpInc[j] = std::max(pref + getRowWeight(i - 1, col), dpDec[0]);
    }

    std::vector<long long> ndpDec(indices[i].size());
    long long suff = 0;
    int sidx = indices[i - 1].size();
    for (int j = static_cast<int>(indices[i].size()) - 1; j >= 0; --j) {
      int col = indices[i][j];
      while (sidx > 0 && indices[i - 1][sidx - 1] >= col) {
        --sidx;
        suff = std::max(suff, std::max(dpInc[sidx], dpDec[sidx]) + getRowWeight(i, indices[i - 1][sidx]));
      }
      ndpDec[j] = suff - getRowWeight(i, col);
    }

    std::swap(dpInc, ndpInc);
    std::swap(dpDec, ndpDec);
  }
  return std::max(dpInc[0], dpDec[0]);
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 16324 KB Output is correct
2 Correct 47 ms 18884 KB Output is correct
3 Correct 17 ms 11396 KB Output is correct
4 Correct 16 ms 11172 KB Output is correct
5 Correct 126 ms 33672 KB Output is correct
6 Correct 135 ms 34644 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 93 ms 22832 KB Output is correct
3 Correct 107 ms 26992 KB Output is correct
4 Correct 38 ms 16332 KB Output is correct
5 Correct 45 ms 18880 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 15 ms 11152 KB Output is correct
11 Correct 15 ms 11352 KB Output is correct
12 Correct 49 ms 16656 KB Output is correct
13 Correct 52 ms 19392 KB Output is correct
14 Correct 42 ms 16628 KB Output is correct
15 Correct 57 ms 18364 KB Output is correct
16 Correct 44 ms 16532 KB Output is correct
17 Correct 55 ms 18364 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 11280 KB Output is correct
2 Correct 22 ms 11180 KB Output is correct
3 Correct 29 ms 13136 KB Output is correct
4 Correct 24 ms 13400 KB Output is correct
5 Correct 44 ms 17332 KB Output is correct
6 Correct 38 ms 16744 KB Output is correct
7 Correct 44 ms 17244 KB Output is correct
8 Correct 44 ms 17232 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 0 ms 420 KB Output is correct
14 Correct 1 ms 348 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 0 ms 420 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 420 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 14 ms 3388 KB Output is correct
18 Correct 14 ms 4328 KB Output is correct
19 Correct 13 ms 3932 KB Output is correct
20 Correct 15 ms 4012 KB Output is correct
21 Correct 13 ms 3932 KB Output is correct
22 Correct 24 ms 7764 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 10 ms 2396 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 4 ms 860 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 0 ms 420 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 420 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 14 ms 3388 KB Output is correct
18 Correct 14 ms 4328 KB Output is correct
19 Correct 13 ms 3932 KB Output is correct
20 Correct 15 ms 4012 KB Output is correct
21 Correct 13 ms 3932 KB Output is correct
22 Correct 24 ms 7764 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 10 ms 2396 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 4 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 83 ms 17260 KB Output is correct
29 Correct 161 ms 23380 KB Output is correct
30 Correct 102 ms 22352 KB Output is correct
31 Correct 103 ms 22352 KB Output is correct
32 Correct 79 ms 24912 KB Output is correct
33 Correct 115 ms 22372 KB Output is correct
34 Correct 99 ms 22480 KB Output is correct
35 Correct 37 ms 9560 KB Output is correct
36 Correct 126 ms 24660 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 11280 KB Output is correct
2 Correct 22 ms 11180 KB Output is correct
3 Correct 29 ms 13136 KB Output is correct
4 Correct 24 ms 13400 KB Output is correct
5 Correct 44 ms 17332 KB Output is correct
6 Correct 38 ms 16744 KB Output is correct
7 Correct 44 ms 17244 KB Output is correct
8 Correct 44 ms 17232 KB Output is correct
9 Correct 43 ms 16980 KB Output is correct
10 Correct 34 ms 13144 KB Output is correct
11 Correct 69 ms 26180 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 17 ms 11392 KB Output is correct
19 Correct 17 ms 11356 KB Output is correct
20 Correct 17 ms 11188 KB Output is correct
21 Correct 14 ms 11356 KB Output is correct
22 Correct 49 ms 18296 KB Output is correct
23 Correct 92 ms 26192 KB Output is correct
24 Correct 85 ms 26708 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 16324 KB Output is correct
2 Correct 47 ms 18884 KB Output is correct
3 Correct 17 ms 11396 KB Output is correct
4 Correct 16 ms 11172 KB Output is correct
5 Correct 126 ms 33672 KB Output is correct
6 Correct 135 ms 34644 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 93 ms 22832 KB Output is correct
9 Correct 107 ms 26992 KB Output is correct
10 Correct 38 ms 16332 KB Output is correct
11 Correct 45 ms 18880 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 15 ms 11152 KB Output is correct
17 Correct 15 ms 11352 KB Output is correct
18 Correct 49 ms 16656 KB Output is correct
19 Correct 52 ms 19392 KB Output is correct
20 Correct 42 ms 16628 KB Output is correct
21 Correct 57 ms 18364 KB Output is correct
22 Correct 44 ms 16532 KB Output is correct
23 Correct 55 ms 18364 KB Output is correct
24 Correct 14 ms 11280 KB Output is correct
25 Correct 22 ms 11180 KB Output is correct
26 Correct 29 ms 13136 KB Output is correct
27 Correct 24 ms 13400 KB Output is correct
28 Correct 44 ms 17332 KB Output is correct
29 Correct 38 ms 16744 KB Output is correct
30 Correct 44 ms 17244 KB Output is correct
31 Correct 44 ms 17232 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 436 KB Output is correct
44 Correct 0 ms 420 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 0 ms 420 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 14 ms 3388 KB Output is correct
49 Correct 14 ms 4328 KB Output is correct
50 Correct 13 ms 3932 KB Output is correct
51 Correct 15 ms 4012 KB Output is correct
52 Correct 13 ms 3932 KB Output is correct
53 Correct 24 ms 7764 KB Output is correct
54 Correct 3 ms 1116 KB Output is correct
55 Correct 10 ms 2396 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 4 ms 860 KB Output is correct
58 Correct 1 ms 860 KB Output is correct
59 Correct 83 ms 17260 KB Output is correct
60 Correct 161 ms 23380 KB Output is correct
61 Correct 102 ms 22352 KB Output is correct
62 Correct 103 ms 22352 KB Output is correct
63 Correct 79 ms 24912 KB Output is correct
64 Correct 115 ms 22372 KB Output is correct
65 Correct 99 ms 22480 KB Output is correct
66 Correct 37 ms 9560 KB Output is correct
67 Correct 126 ms 24660 KB Output is correct
68 Correct 43 ms 16980 KB Output is correct
69 Correct 34 ms 13144 KB Output is correct
70 Correct 69 ms 26180 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 0 ms 348 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 17 ms 11392 KB Output is correct
78 Correct 17 ms 11356 KB Output is correct
79 Correct 17 ms 11188 KB Output is correct
80 Correct 14 ms 11356 KB Output is correct
81 Correct 49 ms 18296 KB Output is correct
82 Correct 92 ms 26192 KB Output is correct
83 Correct 85 ms 26708 KB Output is correct
84 Correct 177 ms 32132 KB Output is correct
85 Correct 181 ms 32692 KB Output is correct
86 Correct 147 ms 32592 KB Output is correct
87 Correct 132 ms 33732 KB Output is correct
88 Correct 0 ms 348 KB Output is correct
89 Correct 130 ms 33756 KB Output is correct
90 Correct 115 ms 33504 KB Output is correct
91 Correct 97 ms 33612 KB Output is correct