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Submission #1056571

# Submission time Handle Problem Language Result Execution time Memory
1056571 2024-08-13T10:07:55 Z aykhn Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 713556 KB 
#include "fish.h"
#include <bits/stdc++.h>

using namespace std;

const int MXN = 3e3 + 5;

long long dp[2][MXN][MXN], val[MXN][MXN];
long long lft[MXN][MXN], rig[MXN][MXN], in[MXN][MXN];
long long pre[2][MXN][MXN], suf[2][MXN][MXN];
long long mx[MXN];

/*
0 = len[i] < len[i + 1];
1 = len[i] > len[i + 1];
*/
long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) 
{
    #define int long long
    for (int i = 0; i < M; i++) val[X[i] + 1][Y[i] + 1] = 1LL * val[X[i] + 1][Y[i] + 1] + 1LL * W[i];
    for (int i = 1; i <= N; i++) 
    {
        for (int j = 1; j <= N; j++)
        {
            lft[i][j] = lft[i][j - 1] + val[i - 1][j];
            rig[i][j] = rig[i][j - 1] + val[i + 1][j];
            in[i][j] = in[i][j - 1] + val[i][j];
        }
    }
    for (int i = 1; i <= N; i++)
    {
        for (int j = 1; j <= N; j++)
        {
            dp[0][i][j] = dp[1][i][j] = lft[i][j] + rig[i][j];
            if (i <= 1) continue;
            dp[0][i][j] = max(dp[0][i][j], pre[0][i - 1][j] + (lft[i][j] + rig[i][j]));
            dp[1][i][j] = max(dp[1][i][j], suf[0][i - 1][j] + (rig[i][j] - in[i][j]));
            // for (int k = 1; k <= N; k++)
            // {
            //     if (k <= j)
            //     {
            //         long long res = (dp[0][i - 1][k] - rig[i - 1][k] - in[i - 1][k]) + (lft[i][j] + rig[i][j]);
            //         dp[0][i][j] = max(dp[0][i][j], res);
            //     }
            //     if (k >= j)
            //     {
            //         long long res = (dp[1][i - 1][k]) + (rig[i][j] - in[i][j]);
            //         dp[1][i][j] = max(dp[1][i][j], res);
            //     }
            // }
            if (i <= 2) continue;
            long long A = pre[1][i - 2][j] + lft[i][j] + rig[i][j];
            long long B = suf[1][i - 2][j] + rig[i][j];
            dp[0][i][j] = max({dp[0][i][j], A, B});
            dp[1][i][j] = max({dp[1][i][j], A, B});
            // for (int k = 1; k <= N; k++)
            // {
            //     long long res = 0;
            //     if (k <= j) 
            //     {
            //         res = (max(dp[0][i - 2][k], dp[1][i - 2][k]) - rig[i - 2][k]) + lft[i][j] + rig[i][j];
            //     }
            //   	if (k >= j)
            //     {
            //         res = max(dp[0][i - 2][k], dp[1][i - 2][k]) + rig[i][j];
            //     }
            //     dp[0][i][j] = max(dp[0][i][j], res);
            //     dp[1][i][j] = max(dp[1][i][j], res);
            // }
            if (i <= 3) continue;
            dp[0][i][j] = max(dp[0][i][j], mx[i - 3] + lft[i][j] + rig[i][j]);
            dp[1][i][j] = max(dp[1][i][j], mx[i - 3] + lft[i][j] + rig[i][j]);
        }
        for (int j = 1; j <= N; j++) 
        {
            pre[0][i][j] = max(pre[0][i][j - 1], dp[0][i][j] - rig[i][j] - in[i][j]);
            pre[1][i][j] = max(pre[1][i][j - 1], max(dp[0][i][j], dp[1][i][j]) - rig[i][j]);
        }
        for (int j = N; j >= 1; j--)
        {
            suf[0][i][j] = max(suf[0][i][j + 1], dp[1][i][j]);
            suf[1][i][j] = max(suf[1][i][j + 1], max(dp[0][i][j], dp[1][i][j]));
        }
        for (int j = 1; j <= N; j++)
        {
            mx[i] = max({mx[i], dp[0][i][j], dp[1][i][j]});
        }
    }
    long long ans = 0;
    for (int i = 1; i <= N; i++) 
    {
        for (int j = 1; j <= N; j++) 
        {
            ans = max({ans, dp[0][i][j], dp[1][i][j]});
        }
    }
    return ans;
    #undef int
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1086 ms 541388 KB Time limit exceeded
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 Execution timed out 1085 ms 413012 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 1075 ms 350080 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 8796 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 0 ms 6492 KB Output is correct
7 Correct 0 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 4 ms 22360 KB Output is correct
10 Correct 8 ms 40536 KB Output is correct
11 Correct 3 ms 22364 KB Output is correct
12 Correct 7 ms 40540 KB Output is correct
13 Correct 2 ms 13148 KB Output is correct
14 Correct 8 ms 40540 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 8796 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 0 ms 6492 KB Output is correct
7 Correct 0 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 4 ms 22360 KB Output is correct
10 Correct 8 ms 40536 KB Output is correct
11 Correct 3 ms 22364 KB Output is correct
12 Correct 7 ms 40540 KB Output is correct
13 Correct 2 ms 13148 KB Output is correct
14 Correct 8 ms 40540 KB Output is correct
15 Correct 8 ms 40540 KB Output is correct
16 Correct 2 ms 13132 KB Output is correct
17 Correct 14 ms 41564 KB Output is correct
18 Correct 15 ms 41564 KB Output is correct
19 Correct 13 ms 41580 KB Output is correct
20 Correct 13 ms 41564 KB Output is correct
21 Correct 14 ms 41564 KB Output is correct
22 Correct 20 ms 42464 KB Output is correct
23 Correct 9 ms 40536 KB Output is correct
24 Correct 12 ms 41048 KB Output is correct
25 Correct 8 ms 40536 KB Output is correct
26 Correct 9 ms 40540 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 8796 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 0 ms 6492 KB Output is correct
7 Correct 0 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 4 ms 22360 KB Output is correct
10 Correct 8 ms 40536 KB Output is correct
11 Correct 3 ms 22364 KB Output is correct
12 Correct 7 ms 40540 KB Output is correct
13 Correct 2 ms 13148 KB Output is correct
14 Correct 8 ms 40540 KB Output is correct
15 Correct 8 ms 40540 KB Output is correct
16 Correct 2 ms 13132 KB Output is correct
17 Correct 14 ms 41564 KB Output is correct
18 Correct 15 ms 41564 KB Output is correct
19 Correct 13 ms 41580 KB Output is correct
20 Correct 13 ms 41564 KB Output is correct
21 Correct 14 ms 41564 KB Output is correct
22 Correct 20 ms 42464 KB Output is correct
23 Correct 9 ms 40536 KB Output is correct
24 Correct 12 ms 41048 KB Output is correct
25 Correct 8 ms 40536 KB Output is correct
26 Correct 9 ms 40540 KB Output is correct
27 Correct 184 ms 706388 KB Output is correct
28 Correct 57 ms 128600 KB Output is correct
29 Correct 218 ms 700028 KB Output is correct
30 Incorrect 226 ms 713556 KB 1st lines differ - on the 1st token, expected: '102439236138254', found: '102426281544023'
31 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1075 ms 350080 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 1086 ms 541388 KB Time limit exceeded
2 Halted 0 ms 0 KB -