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Submission #925283

# Submission time Handle Problem Language Result Execution time Memory
925283 2024-02-11T10:18:37 Z IS_Rushdi Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 2097152 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
 
 
long long max_weights(int n,int m,vector<int>x,vector<int>y,vector<int>w){
    long long dp[n+2][n+2][2]{};
    long long sum[n+2][n+2]{};
    for(int i = 0; i < m; i++) x[i] += 1;
    for(int i = 0; i < m; i++) y[i] += 1;
    for(int i = 0; i < m; i++) sum[x[i]][y[i]] += w[i];
    long long ans = 0;
    for(int i = 0; i <= n+1; i++){
        for(int j = n; j >= 0; j--){
            sum[i][j] += sum[i][j+1]; 
        }
    }
    for(int i = 1; i <= n+1; i++){
        for(int j = 0; j < 2; j++){
            dp[0][i][j] = -1e18;
        }
    }
    dp[0][0][1] = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 0; j <= n+1; j++){
            for(int k = 0; k <= n+1; k++){
                long long now = dp[i-1][j][1];
                if(k > j){
                    now += sum[i-1][j]-sum[i-1][k];
                }
                if(j > k){
                    now += sum[i][k]-sum[i][j];
                }
                // int cur = k;
                // while(cur > j) now += sum[i-1][cur--];
                // cur = j;
                // while(cur > k) now += sum[i][cur--];

                ans = max(ans,now);
                if(k > j) dp[i][k][1] = max(dp[i][k][1],now);
                else if (k < j){
                    dp[i][k][0] = max(dp[i][k][0],now);
                    now -= dp[i-1][j][1];
                    now += dp[i-1][j][0];
                    ans = max(ans,now);
                    dp[i][k][0] = max(dp[i][k][0],now);
                }
                else{
                    dp[i][k][1] = max(dp[i][k][1],now);
                    dp[i][k][0] = max(dp[i][k][0],now);
                    now -= dp[i-1][j][1];
                    now += dp[i-1][j][0];
                    ans = max(ans,now);
                    dp[i][k][0] = max(dp[i][k][0],now);
                    dp[i][k][1] = max(dp[i][k][1],now);
                }
            }
            dp[i][0][1] = max({dp[i][0][1],dp[i-1][j][1],dp[i-1][j][0]});

        }
    }
    return ans;
}
 
// int main(){
//     cout << max_weights(5, 4, {0, 1, 4, 3}, {2, 1, 4, 3}, {5, 2, 1, 3}) << '\n';
// }

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1107 ms 2097152 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 348 KB Output is correct
2 Execution timed out 1039 ms 2097152 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 1034 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 8 ms 992 KB Output is correct
10 Correct 53 ms 2600 KB Output is correct
11 Correct 8 ms 860 KB Output is correct
12 Correct 53 ms 2648 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 54 ms 2396 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 8 ms 992 KB Output is correct
10 Correct 53 ms 2600 KB Output is correct
11 Correct 8 ms 860 KB Output is correct
12 Correct 53 ms 2648 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 54 ms 2396 KB Output is correct
15 Correct 52 ms 2648 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 63 ms 4424 KB Output is correct
18 Correct 63 ms 4160 KB Output is correct
19 Correct 62 ms 4184 KB Output is correct
20 Correct 62 ms 4184 KB Output is correct
21 Correct 62 ms 4188 KB Output is correct
22 Correct 71 ms 6076 KB Output is correct
23 Correct 57 ms 2904 KB Output is correct
24 Correct 59 ms 3676 KB Output is correct
25 Correct 53 ms 2396 KB Output is correct
26 Correct 56 ms 2908 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 8 ms 992 KB Output is correct
10 Correct 53 ms 2600 KB Output is correct
11 Correct 8 ms 860 KB Output is correct
12 Correct 53 ms 2648 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 54 ms 2396 KB Output is correct
15 Correct 52 ms 2648 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 63 ms 4424 KB Output is correct
18 Correct 63 ms 4160 KB Output is correct
19 Correct 62 ms 4184 KB Output is correct
20 Correct 62 ms 4184 KB Output is correct
21 Correct 62 ms 4188 KB Output is correct
22 Correct 71 ms 6076 KB Output is correct
23 Correct 57 ms 2904 KB Output is correct
24 Correct 59 ms 3676 KB Output is correct
25 Correct 53 ms 2396 KB Output is correct
26 Correct 56 ms 2908 KB Output is correct
27 Execution timed out 1085 ms 211892 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1034 ms 2097152 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 1107 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -