oj.uz

Submission #631003

# Submission time Handle Problem Language Result Execution time Memory
631003 2022-08-17T12:42:33 Z fadyscube Catfish Farm (IOI22_fish) C++17
100 / 100
 260 ms 31928 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 65 ms 15944 KB Output is correct
2 Correct 78 ms 18580 KB Output is correct
3 Correct 25 ms 11216 KB Output is correct
4 Correct 27 ms 11220 KB Output is correct
5 Correct 210 ms 31928 KB Output is correct
6 Correct 207 ms 31500 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 128 ms 22420 KB Output is correct
3 Correct 157 ms 25952 KB Output is correct
4 Correct 76 ms 16032 KB Output is correct
5 Correct 76 ms 18540 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 27 ms 11220 KB Output is correct
11 Correct 29 ms 11156 KB Output is correct
12 Correct 69 ms 16376 KB Output is correct
13 Correct 84 ms 19080 KB Output is correct
14 Correct 79 ms 16216 KB Output is correct
15 Correct 84 ms 18044 KB Output is correct
16 Correct 69 ms 16188 KB Output is correct
17 Correct 80 ms 17976 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 11244 KB Output is correct
2 Correct 25 ms 11152 KB Output is correct
3 Correct 48 ms 12896 KB Output is correct
4 Correct 44 ms 12860 KB Output is correct
5 Correct 77 ms 15720 KB Output is correct
6 Correct 66 ms 16396 KB Output is correct
7 Correct 85 ms 17080 KB Output is correct
8 Correct 82 ms 16956 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 26 ms 3148 KB Output is correct
18 Correct 23 ms 4020 KB Output is correct
19 Correct 26 ms 3788 KB Output is correct
20 Correct 25 ms 3860 KB Output is correct
21 Correct 19 ms 3872 KB Output is correct
22 Correct 40 ms 7324 KB Output is correct
23 Correct 5 ms 852 KB Output is correct
24 Correct 19 ms 2284 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 6 ms 724 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 26 ms 3148 KB Output is correct
18 Correct 23 ms 4020 KB Output is correct
19 Correct 26 ms 3788 KB Output is correct
20 Correct 25 ms 3860 KB Output is correct
21 Correct 19 ms 3872 KB Output is correct
22 Correct 40 ms 7324 KB Output is correct
23 Correct 5 ms 852 KB Output is correct
24 Correct 19 ms 2284 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 6 ms 724 KB Output is correct
27 Correct 2 ms 724 KB Output is correct
28 Correct 126 ms 16044 KB Output is correct
29 Correct 198 ms 19976 KB Output is correct
30 Correct 194 ms 18976 KB Output is correct
31 Correct 191 ms 19020 KB Output is correct
32 Correct 161 ms 21976 KB Output is correct
33 Correct 195 ms 19184 KB Output is correct
34 Correct 191 ms 18876 KB Output is correct
35 Correct 67 ms 8908 KB Output is correct
36 Correct 198 ms 21140 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 11244 KB Output is correct
2 Correct 25 ms 11152 KB Output is correct
3 Correct 48 ms 12896 KB Output is correct
4 Correct 44 ms 12860 KB Output is correct
5 Correct 77 ms 15720 KB Output is correct
6 Correct 66 ms 16396 KB Output is correct
7 Correct 85 ms 17080 KB Output is correct
8 Correct 82 ms 16956 KB Output is correct
9 Correct 73 ms 16332 KB Output is correct
10 Correct 59 ms 12532 KB Output is correct
11 Correct 128 ms 24856 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 27 ms 11256 KB Output is correct
19 Correct 25 ms 11224 KB Output is correct
20 Correct 24 ms 11220 KB Output is correct
21 Correct 25 ms 11176 KB Output is correct
22 Correct 88 ms 16276 KB Output is correct
23 Correct 136 ms 22984 KB Output is correct
24 Correct 149 ms 23800 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 15944 KB Output is correct
2 Correct 78 ms 18580 KB Output is correct
3 Correct 25 ms 11216 KB Output is correct
4 Correct 27 ms 11220 KB Output is correct
5 Correct 210 ms 31928 KB Output is correct
6 Correct 207 ms 31500 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 128 ms 22420 KB Output is correct
9 Correct 157 ms 25952 KB Output is correct
10 Correct 76 ms 16032 KB Output is correct
11 Correct 76 ms 18540 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 27 ms 11220 KB Output is correct
17 Correct 29 ms 11156 KB Output is correct
18 Correct 69 ms 16376 KB Output is correct
19 Correct 84 ms 19080 KB Output is correct
20 Correct 79 ms 16216 KB Output is correct
21 Correct 84 ms 18044 KB Output is correct
22 Correct 69 ms 16188 KB Output is correct
23 Correct 80 ms 17976 KB Output is correct
24 Correct 26 ms 11244 KB Output is correct
25 Correct 25 ms 11152 KB Output is correct
26 Correct 48 ms 12896 KB Output is correct
27 Correct 44 ms 12860 KB Output is correct
28 Correct 77 ms 15720 KB Output is correct
29 Correct 66 ms 16396 KB Output is correct
30 Correct 85 ms 17080 KB Output is correct
31 Correct 82 ms 16956 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 26 ms 3148 KB Output is correct
49 Correct 23 ms 4020 KB Output is correct
50 Correct 26 ms 3788 KB Output is correct
51 Correct 25 ms 3860 KB Output is correct
52 Correct 19 ms 3872 KB Output is correct
53 Correct 40 ms 7324 KB Output is correct
54 Correct 5 ms 852 KB Output is correct
55 Correct 19 ms 2284 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 6 ms 724 KB Output is correct
58 Correct 2 ms 724 KB Output is correct
59 Correct 126 ms 16044 KB Output is correct
60 Correct 198 ms 19976 KB Output is correct
61 Correct 194 ms 18976 KB Output is correct
62 Correct 191 ms 19020 KB Output is correct
63 Correct 161 ms 21976 KB Output is correct
64 Correct 195 ms 19184 KB Output is correct
65 Correct 191 ms 18876 KB Output is correct
66 Correct 67 ms 8908 KB Output is correct
67 Correct 198 ms 21140 KB Output is correct
68 Correct 73 ms 16332 KB Output is correct
69 Correct 59 ms 12532 KB Output is correct
70 Correct 128 ms 24856 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 0 ms 212 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 0 ms 212 KB Output is correct
76 Correct 0 ms 212 KB Output is correct
77 Correct 27 ms 11256 KB Output is correct
78 Correct 25 ms 11224 KB Output is correct
79 Correct 24 ms 11220 KB Output is correct
80 Correct 25 ms 11176 KB Output is correct
81 Correct 88 ms 16276 KB Output is correct
82 Correct 136 ms 22984 KB Output is correct
83 Correct 149 ms 23800 KB Output is correct
84 Correct 247 ms 27192 KB Output is correct
85 Correct 260 ms 28304 KB Output is correct
86 Correct 222 ms 27340 KB Output is correct
87 Correct 208 ms 28000 KB Output is correct
88 Correct 0 ms 212 KB Output is correct
89 Correct 214 ms 28416 KB Output is correct
90 Correct 190 ms 28180 KB Output is correct
91 Correct 165 ms 28624 KB Output is correct