oj.uz

Submission #1075120

# Submission time Handle Problem Language Result Execution time Memory
1075120 2024-08-25T18:42:00 Z Zicrus Catfish Farm (IOI22_fish) C++17
9 / 100
 90 ms 36056 KB 
#include <bits/stdc++.h>
#include "fish.h"
using namespace std;
    
typedef long long ll;
    
int n, m;
vector<int> x, y, w;
vector<vector<pair<int, int>>> f; // y, w
vector<vector<int>> relH;

ll sum(int i, int j) {
    auto iter = lower_bound(f[i].begin(), f[i].end(), pair<int, int>(j, -1));
    return iter == f[i].begin() ? 0 : (--iter)->second;
}
    
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    n = N; m = M; x = X; y = Y; w = W;
    f = vector<vector<pair<int, int>>>(n);
    relH = vector<vector<int>>(n);
    for (int i = 0; i < m; i++) {
        f[x[i]].push_back({y[i], w[i]});
        if (x[i] > 0) relH[x[i]-1].push_back(y[i]+1);
        if (x[i] < n-1) relH[x[i]+1].push_back(y[i]+1);
    }
    for (int i = 0; i < n; i++) {
        relH[i].push_back(0);
        sort(f[i].begin(), f[i].end());
        sort(relH[i].begin(), relH[i].end());
        for (int j = 1; j < f[i].size(); j++) {
            f[i][j].second += f[i-1][j].second;
        }
    }

    vector<vector<vector<ll>>> dp(n);
    for (int j = 0; j < relH[0].size(); j++) {
        dp[0].push_back(vector<ll>(1));
    }
    for (int i = 1; i < n; i++) {
        dp[i] = vector<vector<ll>>(relH[i].size());
        for (int j = 0; j < relH[i].size(); j++) {
            dp[i][j] = vector<ll>(relH[i-1].size());
        }
    }
    for (int i = 1; i < n; i++) {
        for (int j = 0; j < relH[i].size(); j++) {
            for (int j1 = 0; j1 < relH[i-1].size(); j1++) {
                for (int k = 0; k < (i < 2 ? 1 : relH[i-2].size()); k++) {
                    ll val = dp[i-1][j1][k];
                    if (relH[i-1][j1] > relH[i][j]) val += sum(i, relH[i-1][j1]) - sum(i, relH[i][j]);
                    if (relH[i][j] > max(relH[i-1][j1], i < 2 ? 0 : relH[i-2][k])) val += sum(i-1, relH[i][j]) - sum(i-1, max(relH[i-1][j1], i < 2 ? 0 : relH[i-2][k]));
                    dp[i][j][j1] = max(dp[i][j][j1], val);
                }
            }
        }
    }

    ll res = 0;
    for (int j = 0; j < relH[n-1].size(); j++) {
        for (int j1 = 0; j1 < relH[n-2].size(); j1++) {
            res = max(res, dp[n-1][j][j1]);
        }
    }
    return res;
}
    
#ifdef TEST
#include "grader.cpp"
#endif

Compilation message

fish.cpp: In function 'll max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:30:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         for (int j = 1; j < f[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~
fish.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for (int j = 0; j < relH[0].size(); j++) {
      |                     ~~^~~~~~~~~~~~~~~~
fish.cpp:41:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for (int j = 0; j < relH[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:46:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for (int j = 0; j < relH[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~~~~
fish.cpp:47:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |             for (int j1 = 0; j1 < relH[i-1].size(); j1++) {
      |                              ~~~^~~~~~~~~~~~~~~~~~
fish.cpp:48:35: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
   48 |                 for (int k = 0; k < (i < 2 ? 1 : relH[i-2].size()); k++) {
      |                                 ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:59:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for (int j = 0; j < relH[n-1].size(); j++) {
      |                     ~~^~~~~~~~~~~~~~~~~~
fish.cpp:60:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         for (int j1 = 0; j1 < relH[n-2].size(); j1++) {
      |                          ~~~^~~~~~~~~~~~~~~~~~

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 29 ms 19152 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 54 ms 29440 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 16728 KB Output is correct
2 Correct 19 ms 16732 KB Output is correct
3 Correct 46 ms 25504 KB Output is correct
4 Correct 37 ms 23900 KB Output is correct
5 Correct 81 ms 36008 KB Output is correct
6 Correct 72 ms 35408 KB Output is correct
7 Correct 73 ms 36012 KB Output is correct
8 Correct 85 ms 36056 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 444 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 Runtime error 1 ms 604 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 444 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 Runtime error 1 ms 604 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 444 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 Runtime error 1 ms 604 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 16728 KB Output is correct
2 Correct 19 ms 16732 KB Output is correct
3 Correct 46 ms 25504 KB Output is correct
4 Correct 37 ms 23900 KB Output is correct
5 Correct 81 ms 36008 KB Output is correct
6 Correct 72 ms 35408 KB Output is correct
7 Correct 73 ms 36012 KB Output is correct
8 Correct 85 ms 36056 KB Output is correct
9 Correct 90 ms 35588 KB Output is correct
10 Runtime error 36 ms 20304 KB Execution killed with signal 11
11 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 29 ms 19152 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -