oj.uz

Submission #1042157

# Submission time Handle Problem Language Result Execution time Memory
1042157 2024-08-02T15:29:45 Z VMaksimoski008 Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 288848 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

ll pref[3005][3005], dp[3005][3005][2], pmx1[3005][3005], smx1[3005][3005], pmx2[3005][3005];
 
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    for(int i=0; i<M; i++) pref[X[i]+1][Y[i]+1] += W[i];
    for(int i=1; i<=N; i++)
        for(int j=1; j<=N; j++) pref[i][j] += pref[i][j-1];
    for(int i=1; i<=N; i++)
        for(int j=0; j<=N; j++) pmx1[i][j] = smx1[i][j] = pmx2[i][j] = -1e18;

    pmx1[1][0] = dp[1][0][1] - pref[1][0];
    smx1[1][N] = max(dp[1][N][0], dp[1][N][1]) + pref[2][N];
    for(int i=1; i<=N; i++) pmx1[1][i] = max(pmx1[1][i-1], dp[1][i][1] - pref[1][i]);
    for(int i=N-1; i>=0; i--) smx1[1][i] = max(smx1[1][i+1], max(dp[1][i][0], dp[1][i][1]) + pref[2][i]);
    for(int i=1; i<=N; i++) pmx2[1][i] = max(pmx2[1][i-1], max(dp[1][i][0], dp[1][i][1]));

    for(int i=2; i<=N; i++) {
        for(int j=0; j<=N; j++) {
            dp[i][j][0] = max(dp[i][j][0], smx1[i-1][j] - pref[i][j]);
            dp[i][j][1] = max({ dp[i][j][1], pmx1[i-1][j] + pref[i-1][j] });
            if(i >= 3) dp[i][j][0] = max(dp[i][j][0], pmx2[i-2][j] + pref[i-1][j]);
            if(i >= 3) dp[i][j][1] = max(dp[i][j][1], pmx2[i-2][j] + pref[i-1][j]);

            for(int k=0; k<=N; k++) {
                if(i >= 3) dp[i][j][1] = max(dp[i][j][1], max(dp[i-2][k][0], dp[i-2][k][1]) + max(pref[i-1][j], pref[i-1][k]));
            }
            
            if(j) pmx1[i][j] = pmx1[i][j-1];
            if(j) pmx2[i][j] = pmx2[i][j-1];
            pmx1[i][j] = max(pmx1[i][j], dp[i][j][1] - pref[i][j]);
            pmx2[i][j] = max(pmx2[i][j], max(dp[i][j][0], dp[i][j][1]));
        }

        smx1[i][N] = max(dp[i][N][0], dp[i][N][1]) + pref[i+1][N];
        for(int j=N-1; j>=0; j--) smx1[i][j] = max(smx1[i][j+1], max(dp[i][j][0], dp[i][j][1]) + pref[i+1][j]);
    }

    ll ans = 0;
    for(int i=1; i<=N; i++)
        for(int j=1; j<=N; j++) ans = max({ ans, dp[i][j][0] + pref[i+1][j], dp[i][j][1] + pref[i+1][j] });
    return ans;
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 174 ms 148144 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 1 ms 6492 KB Output is correct
2 Runtime error 185 ms 152172 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 163 ms 144348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 8700 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 6 ms 21852 KB Output is correct
10 Correct 30 ms 37976 KB Output is correct
11 Correct 6 ms 21852 KB Output is correct
12 Correct 28 ms 37840 KB Output is correct
13 Correct 2 ms 15192 KB Output is correct
14 Correct 28 ms 37844 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 8700 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 6 ms 21852 KB Output is correct
10 Correct 30 ms 37976 KB Output is correct
11 Correct 6 ms 21852 KB Output is correct
12 Correct 28 ms 37840 KB Output is correct
13 Correct 2 ms 15192 KB Output is correct
14 Correct 28 ms 37844 KB Output is correct
15 Correct 28 ms 37968 KB Output is correct
16 Correct 2 ms 15192 KB Output is correct
17 Correct 38 ms 38872 KB Output is correct
18 Correct 40 ms 39020 KB Output is correct
19 Correct 35 ms 38992 KB Output is correct
20 Correct 41 ms 38904 KB Output is correct
21 Correct 35 ms 38888 KB Output is correct
22 Correct 41 ms 39988 KB Output is correct
23 Correct 30 ms 37976 KB Output is correct
24 Correct 33 ms 38480 KB Output is correct
25 Correct 30 ms 38024 KB Output is correct
26 Correct 30 ms 37968 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 8700 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 6 ms 21852 KB Output is correct
10 Correct 30 ms 37976 KB Output is correct
11 Correct 6 ms 21852 KB Output is correct
12 Correct 28 ms 37840 KB Output is correct
13 Correct 2 ms 15192 KB Output is correct
14 Correct 28 ms 37844 KB Output is correct
15 Correct 28 ms 37968 KB Output is correct
16 Correct 2 ms 15192 KB Output is correct
17 Correct 38 ms 38872 KB Output is correct
18 Correct 40 ms 39020 KB Output is correct
19 Correct 35 ms 38992 KB Output is correct
20 Correct 41 ms 38904 KB Output is correct
21 Correct 35 ms 38888 KB Output is correct
22 Correct 41 ms 39988 KB Output is correct
23 Correct 30 ms 37976 KB Output is correct
24 Correct 33 ms 38480 KB Output is correct
25 Correct 30 ms 38024 KB Output is correct
26 Correct 30 ms 37968 KB Output is correct
27 Execution timed out 1063 ms 288848 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 163 ms 144348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 174 ms 148144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -