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Submission #857626

# Submission time Handle Problem Language Result Execution time Memory
857626 2023-10-06T14:30:38 Z hungnt Feast (NOI19_feast) C++14
71 / 100
 286 ms 133164 KB 
#include<bits/stdc++.h>
using namespace std;

const int N = 300005;

int n, k;
int a[N];
long long dp[2003][2003][2];

void sub3()
{
    long long ans = 0, mn = 0, s = 0;
    for(int i = 1; i <= n; i++)
    {
        s += a[i];
        mn = min(mn, s);
        ans = max(ans, s - mn);
    }
    cout << ans;
}

void sub6()
{
    long long ans = 0;
    dp[0][0][1] = 0;
    dp[0][0][0] = 0;
    for(int i = 1; i <= n; i++)
    {
        dp[i][0][0] = 0;
        for(int j = 1; j <= k; j++)
        {
            dp[i][j][0] = max(dp[i - 1][j][1], dp[i - 1][j][0]);
            dp[i][j][1] = max(dp[i - 1][j][1], dp[i - 1][j - 1][0]) + a[i];
			ans = max({ans, dp[i][j][0], dp[i][j][1]});
        }
    }
    cout << ans;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> k;
    int cntam = 0;
    for(int i = 1; i <= n; i++)
    {
        cin >> a[i];
        cntam += (a[i] < 0);
    }
    if(k == 1)
    {
        sub3();
        return 0;
    }
    if(cntam <= 1)
    {
        long long ans = 0;
        for(int i = 1; i <= n; i++) if(a[i] > 0) ans += a[i];
        cout << ans;
        return 0;
    }
    sub6();
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2652 KB Output is correct
2 Correct 22 ms 2520 KB Output is correct
3 Correct 22 ms 2516 KB Output is correct
4 Correct 22 ms 2652 KB Output is correct
5 Correct 22 ms 2516 KB Output is correct
6 Correct 22 ms 2508 KB Output is correct
7 Correct 21 ms 2512 KB Output is correct
8 Correct 22 ms 2820 KB Output is correct
9 Correct 21 ms 2652 KB Output is correct
10 Correct 22 ms 2512 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 2652 KB Output is correct
2 Correct 14 ms 2652 KB Output is correct
3 Correct 15 ms 2516 KB Output is correct
4 Correct 14 ms 2652 KB Output is correct
5 Correct 22 ms 2644 KB Output is correct
6 Correct 14 ms 2612 KB Output is correct
7 Correct 14 ms 2516 KB Output is correct
8 Correct 22 ms 2644 KB Output is correct
9 Correct 22 ms 2652 KB Output is correct
10 Correct 14 ms 2652 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 2652 KB Output is correct
2 Correct 25 ms 5572 KB Output is correct
3 Correct 25 ms 5692 KB Output is correct
4 Correct 24 ms 5436 KB Output is correct
5 Correct 25 ms 5548 KB Output is correct
6 Correct 25 ms 5512 KB Output is correct
7 Correct 25 ms 5716 KB Output is correct
8 Correct 24 ms 5456 KB Output is correct
9 Correct 26 ms 5708 KB Output is correct
10 Correct 28 ms 5696 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 2 ms 12636 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 10588 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 1 ms 10588 KB Output is correct
17 Correct 1 ms 12636 KB Output is correct
18 Correct 1 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 1 ms 12636 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 6492 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 2 ms 12636 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 10588 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 1 ms 10588 KB Output is correct
17 Correct 1 ms 12636 KB Output is correct
18 Correct 1 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 1 ms 12636 KB Output is correct
21 Correct 7 ms 64092 KB Output is correct
22 Correct 13 ms 64140 KB Output is correct
23 Correct 8 ms 64092 KB Output is correct
24 Correct 7 ms 64092 KB Output is correct
25 Correct 8 ms 64092 KB Output is correct
26 Correct 7 ms 64092 KB Output is correct
27 Correct 8 ms 64092 KB Output is correct
28 Correct 7 ms 64092 KB Output is correct
29 Correct 7 ms 63836 KB Output is correct
30 Correct 7 ms 64032 KB Output is correct

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2652 KB Output is correct
2 Correct 22 ms 2520 KB Output is correct
3 Correct 22 ms 2516 KB Output is correct
4 Correct 22 ms 2652 KB Output is correct
5 Correct 22 ms 2516 KB Output is correct
6 Correct 22 ms 2508 KB Output is correct
7 Correct 21 ms 2512 KB Output is correct
8 Correct 22 ms 2820 KB Output is correct
9 Correct 21 ms 2652 KB Output is correct
10 Correct 22 ms 2512 KB Output is correct
11 Correct 14 ms 2652 KB Output is correct
12 Correct 14 ms 2652 KB Output is correct
13 Correct 15 ms 2516 KB Output is correct
14 Correct 14 ms 2652 KB Output is correct
15 Correct 22 ms 2644 KB Output is correct
16 Correct 14 ms 2612 KB Output is correct
17 Correct 14 ms 2516 KB Output is correct
18 Correct 22 ms 2644 KB Output is correct
19 Correct 22 ms 2652 KB Output is correct
20 Correct 14 ms 2652 KB Output is correct
21 Correct 23 ms 2652 KB Output is correct
22 Correct 25 ms 5572 KB Output is correct
23 Correct 25 ms 5692 KB Output is correct
24 Correct 24 ms 5436 KB Output is correct
25 Correct 25 ms 5548 KB Output is correct
26 Correct 25 ms 5512 KB Output is correct
27 Correct 25 ms 5716 KB Output is correct
28 Correct 24 ms 5456 KB Output is correct
29 Correct 26 ms 5708 KB Output is correct
30 Correct 28 ms 5696 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 6492 KB Output is correct
33 Correct 1 ms 6492 KB Output is correct
34 Correct 1 ms 6492 KB Output is correct
35 Correct 1 ms 6492 KB Output is correct
36 Correct 1 ms 6492 KB Output is correct
37 Correct 1 ms 6492 KB Output is correct
38 Correct 1 ms 6492 KB Output is correct
39 Correct 0 ms 2396 KB Output is correct
40 Correct 1 ms 6492 KB Output is correct
41 Correct 2 ms 12636 KB Output is correct
42 Correct 1 ms 10588 KB Output is correct
43 Correct 1 ms 10588 KB Output is correct
44 Correct 2 ms 12636 KB Output is correct
45 Correct 2 ms 12636 KB Output is correct
46 Correct 1 ms 10588 KB Output is correct
47 Correct 1 ms 12636 KB Output is correct
48 Correct 1 ms 12636 KB Output is correct
49 Correct 2 ms 12636 KB Output is correct
50 Correct 1 ms 12636 KB Output is correct
51 Correct 7 ms 64092 KB Output is correct
52 Correct 13 ms 64140 KB Output is correct
53 Correct 8 ms 64092 KB Output is correct
54 Correct 7 ms 64092 KB Output is correct
55 Correct 8 ms 64092 KB Output is correct
56 Correct 7 ms 64092 KB Output is correct
57 Correct 8 ms 64092 KB Output is correct
58 Correct 7 ms 64092 KB Output is correct
59 Correct 7 ms 63836 KB Output is correct
60 Correct 7 ms 64032 KB Output is correct
61 Runtime error 286 ms 133164 KB Execution killed with signal 11
62 Halted 0 ms 0 KB -