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Submission #681975

# Submission time Handle Problem Language Result Execution time Memory
681975 2023-01-15T03:59:23 Z Jarif_Rahman Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 2097152 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

ll max_weights(int n, int m, vector<int> X, vector<int> Y, vector<int> W){
    vector<vector<ll>> v(n, vector<ll>(n+1, 0));
    for(int i = 0; i < m; i++) v[X[i]][Y[i]+1]+=W[i];

    vector<vector<ll>> dp_up(n, vector<ll>(n+1, 0)), dp_down = dp_up,
    dtu2 = dp_up;
    vector<ll> dtu(n, 0);

    vector<vector<ll>> pref(n, vector<ll>(n+1, 0));
    for(int i = 0; i < n; i++) for(int j = 0; j <= n; j++){
        if(j) pref[i][j] = pref[i][j-1];
        pref[i][j]+=v[i][j];
    }

    for(int i = n-1; i >= 0; i--){
        for(int j = 0; j <= n; j++){
            if(i == n-1){
                dp_down[i][j] = 0;
                dp_up[i][j] = 0;
                continue;
            }

            dp_up[i][j]-=pref[i][j];
            dp_down[i][j]-=pref[i+1][n]-pref[i+1][j];
            dp_up[i][j] = max(dp_up[i][j], pref[i][n]-pref[i][j]+dp_down[i+1][n]);

            if(i+2 < n){
                ll s = 0;
                for(int k = 0; k <= j; k++) s+=v[i+1][k];
                for(int k = 0; k <= j; k++){
                    if(k > j) s+=v[i+1][k];
                    dp_down[i][j] = max(dp_down[i][j], s+dp_up[i+2][k]);
                }
                dp_down[i][j] = max(dp_down[i][j], dtu[i+2]-pref[i+1][j]);
                dp_down[i][j] = max(dp_down[i][j], s+dp_down[i+2][n]);
            }
        }

        if(i){
            ll mx = 0;
            for(int j = 0; j <= n; j++) mx = max(mx, pref[i-1][j]+dp_up[i][j]);
            fill(dp_up[i-1].begin(), dp_up[i-1].end(), mx);
            dtu[i] = mx;

            mx = 0;
            for(int j = 0; j <= n; j++) mx = max(mx, pref[i][n]-pref[i][j]+dp_down[i][j]);
            fill(dp_down[i-1].begin(), dp_down[i-1].end(), mx);

            for(int j = 0; j <= n; j++){
                if(j) dtu2[i][j] = dtu2[i][j-1];
                dtu2[i][j] = max(dtu2[i][j], dp_up[i][j]);
            }
        }
    }

    return max(*max_element(dp_up[0].begin(), dp_up[0].end()), *max_element(dp_down[0].begin(), dp_down[0].end()));
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Runtime error 971 ms 2097152 KB Execution killed with signal 9
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 816 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 733 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 300 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 4 ms 1108 KB Output is correct
10 Correct 26 ms 3944 KB Output is correct
11 Correct 4 ms 1108 KB Output is correct
12 Correct 27 ms 3796 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 26 ms 3796 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 300 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 4 ms 1108 KB Output is correct
10 Correct 26 ms 3944 KB Output is correct
11 Correct 4 ms 1108 KB Output is correct
12 Correct 27 ms 3796 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 26 ms 3796 KB Output is correct
15 Correct 26 ms 3796 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 40 ms 4972 KB Output is correct
18 Correct 42 ms 4976 KB Output is correct
19 Correct 37 ms 4944 KB Output is correct
20 Correct 39 ms 4976 KB Output is correct
21 Correct 37 ms 4928 KB Output is correct
22 Correct 56 ms 6136 KB Output is correct
23 Correct 29 ms 4052 KB Output is correct
24 Correct 33 ms 4564 KB Output is correct
25 Correct 26 ms 3796 KB Output is correct
26 Correct 27 ms 4052 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 300 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 4 ms 1108 KB Output is correct
10 Correct 26 ms 3944 KB Output is correct
11 Correct 4 ms 1108 KB Output is correct
12 Correct 27 ms 3796 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 26 ms 3796 KB Output is correct
15 Correct 26 ms 3796 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 40 ms 4972 KB Output is correct
18 Correct 42 ms 4976 KB Output is correct
19 Correct 37 ms 4944 KB Output is correct
20 Correct 39 ms 4976 KB Output is correct
21 Correct 37 ms 4928 KB Output is correct
22 Correct 56 ms 6136 KB Output is correct
23 Correct 29 ms 4052 KB Output is correct
24 Correct 33 ms 4564 KB Output is correct
25 Correct 26 ms 3796 KB Output is correct
26 Correct 27 ms 4052 KB Output is correct
27 Execution timed out 1103 ms 353196 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 733 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 Runtime error 971 ms 2097152 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -