oj.uz

Submission #639376

# Submission time Handle Problem Language Result Execution time Memory
639376 2022-09-09T17:59:44 Z SlavicG Catfish Farm (IOI22_fish) C++17
35 / 100
 1000 ms 2097152 KB 
#include "fish.h"
#include "bits/stdc++.h"
using namespace std;
using ll = long long;

const ll inf = 1e16;
long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
    vector<vector<ll>> p(n, vector<ll>(n, 0));
    for(int i = 0; i < m; ++i) {
        p[x[i]][y[i]] += w[i];
    }
    for(int i = 0; i < n; ++i) {
        for(int j = 1; j < n; ++j) {
            p[i][j] += p[i][j - 1];
        }
    }

    vector<vector<vector<ll>>> dp(n + 1, vector<vector<ll>>(n + 1, vector<ll>(2, -inf)));
    for(int i = 0; i <= n; ++i) {
        dp[0][i][0] = dp[0][i][1] = 0;
    }

    //0 - increasing, 1 - decreasing
    for(int i = 1; i < n; ++i) {
        vector<ll> max0(n + 1, -inf);
        for(int lastlen = 0; lastlen <= n; ++lastlen) {
            dp[i][0][0] = max({dp[i][0][0], dp[i - 1][lastlen][0], dp[i - 1][lastlen][1]});
            dp[i][0][1] = max({dp[i][0][1], dp[i - 1][lastlen][0], dp[i - 1][lastlen][1]});
            if(lastlen) {
                dp[i][0][1] = max(dp[i][0][1], dp[i - 1][lastlen][1] + p[i][lastlen - 1]);
                dp[i][0][1] = max(dp[i][0][1], dp[i - 1][lastlen][0] + p[i][lastlen - 1]);
            }
            if(lastlen) max0[lastlen] = max0[lastlen - 1];
            max0[lastlen] = max(max0[lastlen], dp[i - 1][lastlen][0] - (lastlen ? p[i - 1][lastlen - 1] : 0));
            for(int curlen = 1; curlen <= n; ++curlen) {
                if(curlen >= lastlen) {
                    dp[i][curlen][0] = max(dp[i][curlen][0], p[i - 1][curlen - 1] + max0[lastlen]);
                }
                if(curlen <= lastlen) {
                    dp[i][curlen][1] = max(dp[i][curlen][1], dp[i - 1][lastlen][1] + p[i][lastlen - 1] - p[i][curlen - 1]);
                    dp[i][curlen][1] = max(dp[i][curlen][1], dp[i - 1][lastlen][0] + p[i][lastlen - 1] - p[i][curlen - 1]);
                }
            }
        }
    }
    ll ans = 0;
    for(int i = 0; i <= n; ++i) {
        ans = max({ans, dp[n - 1][i][0], dp[n - 1][i][1]});
    }
    return ans;
}
/*
5 4
0 2 5
1 1 2
4 4 1
3 3 3
*/

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1137 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 212 KB Output is correct
2 Runtime error 802 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 747 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 212 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 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 11 ms 1748 KB Output is correct
10 Correct 81 ms 6036 KB Output is correct
11 Correct 11 ms 1748 KB Output is correct
12 Correct 81 ms 6004 KB Output is correct
13 Correct 2 ms 596 KB Output is correct
14 Correct 82 ms 6012 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 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 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 11 ms 1748 KB Output is correct
10 Correct 81 ms 6036 KB Output is correct
11 Correct 11 ms 1748 KB Output is correct
12 Correct 81 ms 6004 KB Output is correct
13 Correct 2 ms 596 KB Output is correct
14 Correct 82 ms 6012 KB Output is correct
15 Correct 78 ms 5992 KB Output is correct
16 Correct 2 ms 596 KB Output is correct
17 Correct 91 ms 7116 KB Output is correct
18 Correct 89 ms 7052 KB Output is correct
19 Correct 94 ms 6984 KB Output is correct
20 Correct 90 ms 7096 KB Output is correct
21 Correct 89 ms 6972 KB Output is correct
22 Correct 101 ms 8148 KB Output is correct
23 Correct 81 ms 6100 KB Output is correct
24 Correct 86 ms 6696 KB Output is correct
25 Correct 79 ms 6092 KB Output is correct
26 Correct 82 ms 6100 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 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 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 11 ms 1748 KB Output is correct
10 Correct 81 ms 6036 KB Output is correct
11 Correct 11 ms 1748 KB Output is correct
12 Correct 81 ms 6004 KB Output is correct
13 Correct 2 ms 596 KB Output is correct
14 Correct 82 ms 6012 KB Output is correct
15 Correct 78 ms 5992 KB Output is correct
16 Correct 2 ms 596 KB Output is correct
17 Correct 91 ms 7116 KB Output is correct
18 Correct 89 ms 7052 KB Output is correct
19 Correct 94 ms 6984 KB Output is correct
20 Correct 90 ms 7096 KB Output is correct
21 Correct 89 ms 6972 KB Output is correct
22 Correct 101 ms 8148 KB Output is correct
23 Correct 81 ms 6100 KB Output is correct
24 Correct 86 ms 6696 KB Output is correct
25 Correct 79 ms 6092 KB Output is correct
26 Correct 82 ms 6100 KB Output is correct
27 Execution timed out 1135 ms 564624 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 747 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 Execution timed out 1137 ms 2097152 KB Time limit exceeded
2 Halted 0 ms 0 KB -