oj.uz

Submission #634125

# Submission time Handle Problem Language Result Execution time Memory
634125 2022-08-23T20:38:16 Z Utaha Catfish Farm (IOI22_fish) C++17
0 / 100
 1000 ms 11260 KB 
#include "fish.h"

#include <bits/stdc++.h>
using namespace std;

const int maxN = 100005;

int n_col = 0;
long long dp[5][3][maxN];
long long prefix[5][maxN];
const long long INF = 1e18;
const int UP = 0;
const int DOWN = 1;
const int STOP = 2;

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
    n_col = 5;

    for(int i = 0; i < M; i++) {
        prefix[X[i] + 1][Y[i] + 1] = W[i];
    }
    for(int i = 0; i < n_col; i++) {
        for(int j = 0; j < N; j++) {
            prefix[i][j + 1] += prefix[i][j];
        }
    }
    // for(int i = 0; i < n_col; i++) {
    //     for(int j = 0; j < prefix[i].size(); j++) {
    //         cout << prefix[i][j] << ' ';
    //     }
    //     cout<<'\n';
    // }

    for(int i = 0; i < n_col; i++) {
        for(int j = 0; j < 3; j++) {
            for(int k = 0; k <= N; k++) {
                // printf("%d %d %d %lld\n", i, j, k, dp[i][j][k]);
                if (i == 0) {
                    if (j != UP) {
                        dp[i][j][k] = -INF;
                    }
                    else {
                        dp[i][j][k] = prefix[0][k];
                    }
                }
                if (i == n_col - 1) break;

                if (j == UP) {
                    for(int t = k; t <= N; t++) {
                        dp[i + 1][UP][t] = max(dp[i + 1][UP][t], dp[i][j][k] + prefix[i + 1][t] - prefix[i + 1][k]);
                        // printf("DEBUG: %d %d %lld\n",i, t, dp[i + 1][UP][t]);
                    }
                    dp[i + 1][STOP][k] = max(dp[i + 1][STOP][k], dp[i][j][k]);
                }
                else if(j == STOP) {
                    for(int t = 0; t <= k; t++){
                        dp[i + 1][DOWN][t] = max(dp[i + 1][DOWN][t], dp[i][j][k] + prefix[i + 1][k] - prefix[i + 1][t]);
                    }
                }
                else{
                    for(int t = 0; t <= k; t++) {
                        dp[i + 1][DOWN][t] = max(dp[i + 1][DOWN][t], dp[i][j][k] + prefix[i + 1][k] - prefix[i + 1][t]);
                    }
                    // down and immediately up
                    for(int t = 0; t <= N; t++) {
                        const int height = max(t, k);

                        // printf("check: %d %d %lld % lld\n",i, t, dp[i][j][k], prefix[i + 1][height]);
                        dp[i + 1][UP][t] = max(dp[i + 1][UP][t], dp[i][j][k] + prefix[i + 1][height]);
                        // printf("DEBU2: %d %d %lld\n",i, t, dp[i + 1][UP][t]);
                    }
                }
            }
        }
    }
    return dp[n_col - 1][DOWN][0];
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 7356 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Execution timed out 1087 ms 11260 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1050 ms 5244 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1050 ms 5244 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 7356 KB Time limit exceeded
2 Halted 0 ms 0 KB -