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Submission #791497

# Submission time Handle Problem Language Result Execution time Memory
791497 2023-07-24T07:03:34 Z adaawf Feast (NOI19_feast) C++14
51 / 100
 94 ms 5752 KB 
#include <iostream>
#include <cstring>
using namespace std;
long long int a[500005], c[500005], f[305][305];
int main() {
    memset(f, 0, sizeof f);
    int n, k, flag = 0, h = 0;
    cin >> n >> k;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        if (a[i] < 0) {
            flag++;
            h = i;
        }
        c[i] = c[i - 1] + a[i];
    }
    if (flag == 0) {
        cout << c[n];
        return 0;
    }
    if (flag == 1) {
        if (k >= 2) {
            cout << c[n] - a[h];
        }
        else {
            cout << max(c[h - 1], max(c[n] - c[h], c[n]));
        }
        return 0;
    }
    if (k == 1) {
        long long int mi = 0, ma = 0;
        for (int i = 1; i <= n; i++) {
            mi = min(mi, c[i]);
            ma = max(ma, c[i] - mi);
        }
        cout << ma;
        return 0;
    }
    if (n <= 300 && k <= 300) {
        f[0][0] = 0;
        for (int i = 1; i <= n; i++) {
            f[i][0] = 0;
            for (int j = 1; j <= k; j++) {
                f[i][j] = f[i - 1][j];
                for (int g = i; g >= 1; g--) {
                    f[i][j] = max(f[i][j], f[g - 1][j - 1] + c[i] - c[g - 1]);
                }
            }
        }
        long long int ma = 0;
        for (int i = 0; i <= k; i++) {
            ma = max(ma, f[n][i]);
        }
        cout << ma;
    }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 5604 KB Output is correct
2 Correct 80 ms 5548 KB Output is correct
3 Correct 82 ms 5708 KB Output is correct
4 Correct 80 ms 5676 KB Output is correct
5 Correct 80 ms 5560 KB Output is correct
6 Correct 82 ms 5584 KB Output is correct
7 Correct 82 ms 5596 KB Output is correct
8 Correct 82 ms 5580 KB Output is correct
9 Correct 81 ms 5532 KB Output is correct
10 Correct 80 ms 5524 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 5580 KB Output is correct
2 Correct 42 ms 5636 KB Output is correct
3 Correct 42 ms 5488 KB Output is correct
4 Correct 42 ms 5584 KB Output is correct
5 Correct 79 ms 5468 KB Output is correct
6 Correct 48 ms 5584 KB Output is correct
7 Correct 44 ms 5644 KB Output is correct
8 Correct 82 ms 5636 KB Output is correct
9 Correct 85 ms 5460 KB Output is correct
10 Correct 51 ms 5660 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 5628 KB Output is correct
2 Correct 87 ms 5492 KB Output is correct
3 Correct 87 ms 5752 KB Output is correct
4 Correct 87 ms 5584 KB Output is correct
5 Correct 87 ms 5636 KB Output is correct
6 Correct 89 ms 5652 KB Output is correct
7 Correct 88 ms 5580 KB Output is correct
8 Correct 87 ms 5600 KB Output is correct
9 Correct 94 ms 5608 KB Output is correct
10 Correct 87 ms 5600 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 968 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 940 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 968 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 940 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 3 ms 980 KB Output is correct
12 Correct 4 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 3 ms 980 KB Output is correct
15 Correct 2 ms 980 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 3 ms 980 KB Output is correct
18 Correct 1 ms 980 KB Output is correct
19 Correct 1 ms 980 KB Output is correct
20 Correct 1 ms 980 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 968 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 940 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 3 ms 980 KB Output is correct
12 Correct 4 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 3 ms 980 KB Output is correct
15 Correct 2 ms 980 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 3 ms 980 KB Output is correct
18 Correct 1 ms 980 KB Output is correct
19 Correct 1 ms 980 KB Output is correct
20 Correct 1 ms 980 KB Output is correct
21 Incorrect 1 ms 980 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 5604 KB Output is correct
2 Correct 80 ms 5548 KB Output is correct
3 Correct 82 ms 5708 KB Output is correct
4 Correct 80 ms 5676 KB Output is correct
5 Correct 80 ms 5560 KB Output is correct
6 Correct 82 ms 5584 KB Output is correct
7 Correct 82 ms 5596 KB Output is correct
8 Correct 82 ms 5580 KB Output is correct
9 Correct 81 ms 5532 KB Output is correct
10 Correct 80 ms 5524 KB Output is correct
11 Correct 42 ms 5580 KB Output is correct
12 Correct 42 ms 5636 KB Output is correct
13 Correct 42 ms 5488 KB Output is correct
14 Correct 42 ms 5584 KB Output is correct
15 Correct 79 ms 5468 KB Output is correct
16 Correct 48 ms 5584 KB Output is correct
17 Correct 44 ms 5644 KB Output is correct
18 Correct 82 ms 5636 KB Output is correct
19 Correct 85 ms 5460 KB Output is correct
20 Correct 51 ms 5660 KB Output is correct
21 Correct 88 ms 5628 KB Output is correct
22 Correct 87 ms 5492 KB Output is correct
23 Correct 87 ms 5752 KB Output is correct
24 Correct 87 ms 5584 KB Output is correct
25 Correct 87 ms 5636 KB Output is correct
26 Correct 89 ms 5652 KB Output is correct
27 Correct 88 ms 5580 KB Output is correct
28 Correct 87 ms 5600 KB Output is correct
29 Correct 94 ms 5608 KB Output is correct
30 Correct 87 ms 5600 KB Output is correct
31 Correct 1 ms 980 KB Output is correct
32 Correct 1 ms 980 KB Output is correct
33 Correct 1 ms 968 KB Output is correct
34 Correct 1 ms 980 KB Output is correct
35 Correct 1 ms 980 KB Output is correct
36 Correct 1 ms 940 KB Output is correct
37 Correct 1 ms 980 KB Output is correct
38 Correct 1 ms 980 KB Output is correct
39 Correct 1 ms 980 KB Output is correct
40 Correct 1 ms 980 KB Output is correct
41 Correct 3 ms 980 KB Output is correct
42 Correct 4 ms 980 KB Output is correct
43 Correct 1 ms 980 KB Output is correct
44 Correct 3 ms 980 KB Output is correct
45 Correct 2 ms 980 KB Output is correct
46 Correct 1 ms 980 KB Output is correct
47 Correct 3 ms 980 KB Output is correct
48 Correct 1 ms 980 KB Output is correct
49 Correct 1 ms 980 KB Output is correct
50 Correct 1 ms 980 KB Output is correct
51 Incorrect 1 ms 980 KB Output isn't correct
52 Halted 0 ms 0 KB -