oj.uz

Submission #832504

# Submission time Handle Problem Language Result Execution time Memory
832504 2023-08-21T10:57:22 Z rnl42 Catfish Farm (IOI22_fish) C++17
0 / 100
 1000 ms 2097152 KB 
#include "fish.h"
#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;
#define int long long

using piii = pair<int,pair<int,int>>;

#ifdef DEBUG
void dbg_out() {}
template <typename Head, typename... Tail>
void dbg_out(Head H, Tail... T) {
    cerr << H << " ";
    dbg_out(T...);
}
#define dbg(...) cerr << "(" #__VA_ARGS__ ") = "; dbg_out(__VA_ARGS__); cerr << '\n'
//#define dbg(x) cerr << "(" #x ") = " << x << '\n'
#define dbgln() cerr << '\n'
#else
#define dbg(...) void(0)
#define dbgln(x) void(0)
#endif

int max_weights(signed N, signed M, vector<signed> X, vector<signed> Y, vector<signed> W) {
    vector<vector<int>> grid(N, vector<int>(N+2));
    vector<vector<int>> cumulsum(N, vector<int>(N+2));
    for (int i = 0; i < M; i++) grid[X[i]][Y[i]] = W[i];
    for (int x = 0; x < N; x++) {
        for (int y = 0; y <= N; y++) {
            cumulsum[x][y+1] = cumulsum[x][y]+grid[x][y];
        }
    }
    vector<vector<int>> best_asc(N, vector<int>(N+2, -1e18)), best_desc(N, vector<int>(N+2, -1e18));
    for (int y = 0; y <= N+1; y++) {
        best_asc[0][y] = cumulsum[0][y+1];
    }
    for (int x = 1; x < N; x++) {
        vector<int> best_for_desc(N+3, -1e18);
        for (int y = N+1; y >= 0; y--) {
            best_for_desc[y] = max(best_for_desc[y+1], best_desc[x-1][y]+cumulsum[x][y]);
            dbg(y, best_for_desc[y]);
        }
        int best_for_asc = 0;
        for (int y = 0; y <= N+1; y++) {
            best_for_asc = max(best_for_asc, best_asc[x-1][y]+cumulsum[x].back()-cumulsum[x][y+1]);
            
            best_asc[x][y] = cumulsum[x][y+1];
            if (y <= N) best_asc[x][y] = max(best_asc[x][y], cumulsum[x][y+1]+best_desc[x-1][y+1]);
            best_asc[x][y] = max(best_asc[x][y], best_for_asc-(cumulsum[x].back()-cumulsum[x][y+1]));

            if (x >= 2) {
                best_desc[x][y] = max(best_desc[x][y], best_desc[x-2][N]);
            }
            if (x >= 3) {
                best_desc[x][y] = max(best_desc[x][y], best_desc[x-3][N]);
            }
            best_desc[x][y] = max(best_desc[x][y], best_for_desc[y]-cumulsum[x][y]);
        }
        dbgln();
    }

    for (int x = 0; x < N; x++) {
        for (int y = 0; y <= N; y++) {
            dbg(x, y, best_asc[x][y], best_desc[x][y]);
        }
    }
    
    return max(best_desc[N-1][0], best_asc[N-2][N]);
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1144 ms 1847204 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 212 KB Output is correct
2 Runtime error 873 ms 2097152 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 680 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
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 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '4044', found: '2022'
4 Halted 0 ms 0 KB -

Subtask #5
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 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '4044', found: '2022'
4 Halted 0 ms 0 KB -

Subtask #6
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 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '4044', found: '2022'
4 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 680 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1144 ms 1847204 KB Time limit exceeded
2 Halted 0 ms 0 KB -