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Submission #729902

# Submission time Handle Problem Language Result Execution time Memory
729902 2023-04-24T19:17:23 Z caganyanmaz Catfish Farm (IOI22_fish) C++17
52 / 100
 546 ms 294024 KB 
#include <bits/stdc++.h>
#define pb push_back
#define int int64_t
using namespace std;

constexpr static int SIZE = 3001;
int dp[SIZE][SIZE][2];
int grid[SIZE][SIZE];


int max_weights(int32_t n, int32_t m, vector<int32_t> x, vector<int32_t> y, vector<int32_t> w)
{
        for (int i = 0; i <= n; i++)
                for (int j = 0; j <= n; j++)
                        for (int k = 0; k < 2; k++)
                                dp[i][j][k] = 0;
        for (int i = 0; i < n; i++)
                for (int j = 0; j < n; j++)
                        grid[i][j] = 0;

        for (int i = 0; i < m; i++)
                grid[x[i]][y[i]] = w[i];
        for (int i = 1; i <= n; i++)
                dp[1][i][0] = dp[1][i-1][0] + grid[0][i-1];
        for (int i = n-1; i >= 0; i--)
                dp[1][i][1] = dp[1][i+1][1] + grid[1][i];
        for (int i = 2; i < n; i++)
        {
                vector<int> b_l(n+1), b_h(n+1);
                vector<int> prefix(n+1);
                for (int j = 1; j <= n; j++)
                        prefix[j] = prefix[j-1] + grid[i-1][j-1];
                for (int j = 1; j <= n; j++)
                        b_l[j] = max({b_l[j-1], dp[i-2][j-1][0], dp[i-2][j-1][1]});
                b_h[n] = max(dp[i-2][n][0], dp[i-2][n][1]) + prefix[n];
                for (int j = n-1; j >= 0; j--)
                        b_h[j] = max(b_h[j+1], max(dp[i-2][j][0], dp[i-2][j][1]) + prefix[j]);
                for (int j = 1; j <= n; j++)
                        dp[i][j][0] = grid[i-1][j-1] + max({dp[i][j-1][0], dp[i-1][j-1][0]});
                dp[i][n][1] = dp[i-1][n][1];
                for (int j = n-1; j >= 0; j--)
                        dp[i][j][1] = max({dp[i][j+1][1], dp[i-1][j+1][1], dp[i-1][j+1][0]}) + grid[i][j];
                for (int j = 0; j <= n; j++)
                {
                        dp[i][j][0] = max({dp[i][j][0], b_l[j] + prefix[j], b_h[j]});
                        dp[i][j][1] = max({dp[i][j][1], b_l[j] + prefix[j], b_h[j]});
                }
        }
        vector<int> prefix(n+1);
        for (int i = 1; i <= n; i++)
                prefix[i] = prefix[i-1] + grid[n-1][i-1];
        int best = 0;
        for (int i = 0; i <= n; i++)
                best = max(best, dp[n-1][i][0]);
        for (int i = 0; i <= n; i++)
                best = max(best, max(dp[n-2][i][1], dp[n-2][i][0]) + prefix[i]);
        return best;
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 501 ms 290124 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 384 KB Output is correct
2 Runtime error 546 ms 294024 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 451 ms 286288 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 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 240 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 3 ms 2152 KB Output is correct
10 Correct 7 ms 4820 KB Output is correct
11 Correct 3 ms 2004 KB Output is correct
12 Correct 7 ms 4820 KB Output is correct
13 Correct 2 ms 980 KB Output is correct
14 Correct 5 ms 4864 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 240 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 3 ms 2152 KB Output is correct
10 Correct 7 ms 4820 KB Output is correct
11 Correct 3 ms 2004 KB Output is correct
12 Correct 7 ms 4820 KB Output is correct
13 Correct 2 ms 980 KB Output is correct
14 Correct 5 ms 4864 KB Output is correct
15 Correct 6 ms 4820 KB Output is correct
16 Correct 2 ms 980 KB Output is correct
17 Correct 19 ms 5844 KB Output is correct
18 Correct 21 ms 5836 KB Output is correct
19 Correct 25 ms 5840 KB Output is correct
20 Correct 26 ms 5868 KB Output is correct
21 Correct 18 ms 5856 KB Output is correct
22 Correct 34 ms 7000 KB Output is correct
23 Correct 10 ms 5020 KB Output is correct
24 Correct 15 ms 5460 KB Output is correct
25 Correct 5 ms 4820 KB Output is correct
26 Correct 8 ms 4972 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 240 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 3 ms 2152 KB Output is correct
10 Correct 7 ms 4820 KB Output is correct
11 Correct 3 ms 2004 KB Output is correct
12 Correct 7 ms 4820 KB Output is correct
13 Correct 2 ms 980 KB Output is correct
14 Correct 5 ms 4864 KB Output is correct
15 Correct 6 ms 4820 KB Output is correct
16 Correct 2 ms 980 KB Output is correct
17 Correct 19 ms 5844 KB Output is correct
18 Correct 21 ms 5836 KB Output is correct
19 Correct 25 ms 5840 KB Output is correct
20 Correct 26 ms 5868 KB Output is correct
21 Correct 18 ms 5856 KB Output is correct
22 Correct 34 ms 7000 KB Output is correct
23 Correct 10 ms 5020 KB Output is correct
24 Correct 15 ms 5460 KB Output is correct
25 Correct 5 ms 4820 KB Output is correct
26 Correct 8 ms 4972 KB Output is correct
27 Correct 339 ms 211888 KB Output is correct
28 Correct 111 ms 28440 KB Output is correct
29 Correct 445 ms 224436 KB Output is correct
30 Correct 455 ms 224484 KB Output is correct
31 Correct 499 ms 224492 KB Output is correct
32 Correct 126 ms 23884 KB Output is correct
33 Correct 486 ms 224496 KB Output is correct
34 Correct 463 ms 224504 KB Output is correct
35 Correct 393 ms 216660 KB Output is correct
36 Correct 450 ms 224420 KB Output is correct

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 451 ms 286288 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 501 ms 290124 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -