oj.uz

Submission #626626

# Submission time Handle Problem Language Result Execution time Memory
626626 2022-08-11T15:13:57 Z ITO Catfish Farm (IOI22_fish) C++17
9 / 100
 144 ms 21820 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(ru[p0].back());
    }
    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);
    ru[p0][0] = max(ru[p0][0], rd[p1][0]);
    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:64:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |   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 45 ms 12348 KB Output is correct
2 Correct 55 ms 14260 KB Output is correct
3 Correct 15 ms 7296 KB Output is correct
4 Correct 16 ms 7340 KB Output is correct
5 Correct 127 ms 21820 KB Output is correct
6 Correct 144 ms 21748 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 76 ms 16836 KB Output is correct
3 Correct 91 ms 19632 KB Output is correct
4 Correct 47 ms 12364 KB Output is correct
5 Correct 52 ms 14140 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 296 KB Output is correct
10 Correct 16 ms 7240 KB Output is correct
11 Correct 15 ms 7336 KB Output is correct
12 Correct 44 ms 13880 KB Output is correct
13 Correct 56 ms 15916 KB Output is correct
14 Correct 49 ms 13536 KB Output is correct
15 Correct 54 ms 14880 KB Output is correct
16 Correct 48 ms 13496 KB Output is correct
17 Correct 58 ms 14808 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 7252 KB Output is correct
2 Correct 16 ms 7224 KB Output is correct
3 Incorrect 41 ms 10152 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '20897672610412'
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 0 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 1 ms 212 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: '214837477243'
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 0 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 1 ms 212 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: '214837477243'
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 0 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 1 ms 212 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: '214837477243'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 7252 KB Output is correct
2 Correct 16 ms 7224 KB Output is correct
3 Incorrect 41 ms 10152 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '20897672610412'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 12348 KB Output is correct
2 Correct 55 ms 14260 KB Output is correct
3 Correct 15 ms 7296 KB Output is correct
4 Correct 16 ms 7340 KB Output is correct
5 Correct 127 ms 21820 KB Output is correct
6 Correct 144 ms 21748 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 76 ms 16836 KB Output is correct
9 Correct 91 ms 19632 KB Output is correct
10 Correct 47 ms 12364 KB Output is correct
11 Correct 52 ms 14140 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 300 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 296 KB Output is correct
16 Correct 16 ms 7240 KB Output is correct
17 Correct 15 ms 7336 KB Output is correct
18 Correct 44 ms 13880 KB Output is correct
19 Correct 56 ms 15916 KB Output is correct
20 Correct 49 ms 13536 KB Output is correct
21 Correct 54 ms 14880 KB Output is correct
22 Correct 48 ms 13496 KB Output is correct
23 Correct 58 ms 14808 KB Output is correct
24 Correct 16 ms 7252 KB Output is correct
25 Correct 16 ms 7224 KB Output is correct
26 Incorrect 41 ms 10152 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '20897672610412'
27 Halted 0 ms 0 KB -