oj.uz

Submission #626659

# Submission time Handle Problem Language Result Execution time Memory
626659 2022-08-11T15:32:27 Z ITO Catfish Farm (IOI22_fish) C++17
9 / 100
 164 ms 21816 KB 
#include "fish.h"

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
  vector<vector<pair<int, ll>>> v(N, vector<pair<int, ll>>(0));
  vector<ll> ru[2], rd[2];
  int p0 = 1, p1 = 0;
  ll co = 0;

  for (int i = 0; i < M; i++) {
    v[X[i]].push_back({Y[i], W[i]});
  }
  for (int i = 0; i < N; i++) {
    v[i].push_back({0, 0});
    v[i].push_back({N, 0});
    sort(v[i].begin(), v[i].end());
    for (int j = 1; j < v[i].size(); j++) v[i][j].second += v[i][j - 1].second;
  }
  for (int j = 0; j < v[0].size(); j++) {
    ru[0].push_back(0);
    rd[0].push_back(0);
  }
  for (int i = 1; i < N; i++) {
    ru[p0].clear();
    rd[p0].clear();
    int j, k = 1;
    ll te = ru[p1][0];
    for (j = 0; j < v[i].size(); j++) {
      while (k < v[i - 1].size() && v[i - 1][k].first <= v[i][j].first) {
        te = max(te, ru[p1][k] - v[i - 1][k - 1].second);
        k++;
      }
      if (k >= 2 && v[i - 1][k - 1].first == v[i][j].first) {
        ru[p0].push_back(te + v[i - 1][k - 2].second);
      } else {
        ru[p0].push_back(te + v[i - 1][k - 1].second);
      }
      rd[p0].push_back(max(ru[p0].back(), rd[p1][0]));
    }
    k = v[i - 1].size() - 2;
    te = rd[p1].back() + v[i].back().second;
    for (j = v[i].size() - 1; j > 0; j--) {
      while (k >= 0 && v[i - 1][k].first >= v[i][j].first) {
        if (v[i - 1][k].first > v[i][j].first) {
          te = max(te, rd[p1][k] + v[i][j].second);
        } else {
          te = max(te, rd[p1][k] + v[i][j - 1].second);
        }
        k--;
      }
      rd[p0][j] = max(rd[p0][j], te - v[i][j - 1].second);
    }
    while (k >= 0 && v[i - 1][k].first >= v[i][j].first) {
      te = max(te, rd[p1][k]);
      k--;
    }
    rd[p0][0] = max(rd[p0][0], te);
    swap(p0, p1);
  }
  for (int i = 0; i < ru[p1].size(); i++) co = max(co, max(ru[p1][i], rd[p1][i]));
  return co;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:20:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for (int j = 1; j < v[i].size(); j++) v[i][j].second += v[i][j - 1].second;
      |                     ~~^~~~~~~~~~~~~
fish.cpp:22:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for (int j = 0; j < v[0].size(); j++) {
      |                   ~~^~~~~~~~~~~~~
fish.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for (j = 0; j < v[i].size(); j++) {
      |                 ~~^~~~~~~~~~~~~
fish.cpp:32:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |       while (k < v[i - 1].size() && v[i - 1][k].first <= v[i][j].first) {
      |              ~~^~~~~~~~~~~~~~~~~
fish.cpp:63:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |   for (int i = 0; i < ru[p1].size(); i++) co = max(co, max(ru[p1][i], rd[p1][i]));
      |                   ~~^~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 12368 KB Output is correct
2 Correct 61 ms 14132 KB Output is correct
3 Correct 16 ms 7252 KB Output is correct
4 Correct 16 ms 7252 KB Output is correct
5 Correct 162 ms 21816 KB Output is correct
6 Correct 164 ms 21628 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 94 ms 16828 KB Output is correct
3 Correct 136 ms 19756 KB Output is correct
4 Correct 46 ms 12364 KB Output is correct
5 Correct 65 ms 14116 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 16 ms 7328 KB Output is correct
11 Correct 18 ms 7348 KB Output is correct
12 Correct 47 ms 12348 KB Output is correct
13 Correct 56 ms 14212 KB Output is correct
14 Correct 50 ms 12072 KB Output is correct
15 Correct 57 ms 13220 KB Output is correct
16 Correct 58 ms 12144 KB Output is correct
17 Correct 64 ms 13296 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 7252 KB Output is correct
2 Correct 23 ms 7276 KB Output is correct
3 Incorrect 54 ms 10076 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 280 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Incorrect 1 ms 340 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '165092780656'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 280 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Incorrect 1 ms 340 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '165092780656'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 280 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Incorrect 1 ms 340 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '165092780656'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 7252 KB Output is correct
2 Correct 23 ms 7276 KB Output is correct
3 Incorrect 54 ms 10076 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 12368 KB Output is correct
2 Correct 61 ms 14132 KB Output is correct
3 Correct 16 ms 7252 KB Output is correct
4 Correct 16 ms 7252 KB Output is correct
5 Correct 162 ms 21816 KB Output is correct
6 Correct 164 ms 21628 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 94 ms 16828 KB Output is correct
9 Correct 136 ms 19756 KB Output is correct
10 Correct 46 ms 12364 KB Output is correct
11 Correct 65 ms 14116 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 16 ms 7328 KB Output is correct
17 Correct 18 ms 7348 KB Output is correct
18 Correct 47 ms 12348 KB Output is correct
19 Correct 56 ms 14212 KB Output is correct
20 Correct 50 ms 12072 KB Output is correct
21 Correct 57 ms 13220 KB Output is correct
22 Correct 58 ms 12144 KB Output is correct
23 Correct 64 ms 13296 KB Output is correct
24 Correct 22 ms 7252 KB Output is correct
25 Correct 23 ms 7276 KB Output is correct
26 Incorrect 54 ms 10076 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '16359027219341'
27 Halted 0 ms 0 KB -