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Submission #966866

# Submission time Handle Problem Language Result Execution time Memory
966866 2024-04-20T13:58:30 Z ktsp2332 Feast (NOI19_feast) C++14
71 / 100
 188 ms 262144 KB 
#include<bits/stdc++.h>
#define int long long

using namespace std;

int n,k, arr[300300], l, r, vis[300300], mx = -1e18, sum, now, ans, qs[300300], ck, idx;

signed main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> k;
    for(int i = 1; i<=n; ++i){
        cin >> arr[i];
        if(arr[i] < 0){
            ck++;
            idx = i;
        }
        qs[i] = qs[i - 1] + arr[i];
    }
    if(!ck){
        cout << qs[n];
        return 0;
    }
    if(ck == 1){
        if(k == 1) cout << max({qs[idx - 1], qs[n], qs[n] - qs[idx]});
        else cout << qs[n] - arr[idx];
        return 0;
    }
    if(k == 1){
        for(int i = 1; i<=n; ++i){
            sum+=arr[i];
            if(sum < 0) sum = 0;
            ans = max(ans, sum);
        }
        cout << ans;
        return 0;
    }
    int dp[n+1][k+1], mx[k+1];
    memset(dp, 0, sizeof(dp));
    memset(mx, 0, sizeof(mx));
    for(int i=1; i<=n; i++) {
        for(int j=0; j<=k; j++) {
            dp[i][j] = dp[i-1][j];
            if(j) dp[i][j] = max(dp[i][j], qs[i] + mx[j-1]);
        }
 
        for(int j=0; j<=k; j++) mx[j] = max(mx[j], dp[i][j] - qs[i]);
    }
    cout << dp[n][k];
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 10212 KB Output is correct
2 Correct 35 ms 10228 KB Output is correct
3 Correct 24 ms 10348 KB Output is correct
4 Correct 25 ms 10120 KB Output is correct
5 Correct 36 ms 10068 KB Output is correct
6 Correct 23 ms 10112 KB Output is correct
7 Correct 23 ms 10064 KB Output is correct
8 Correct 23 ms 10116 KB Output is correct
9 Correct 25 ms 10232 KB Output is correct
10 Correct 35 ms 10156 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 8568 KB Output is correct
2 Correct 15 ms 8540 KB Output is correct
3 Correct 16 ms 8456 KB Output is correct
4 Correct 19 ms 8360 KB Output is correct
5 Correct 30 ms 9980 KB Output is correct
6 Correct 16 ms 8540 KB Output is correct
7 Correct 23 ms 8540 KB Output is correct
8 Correct 25 ms 10324 KB Output is correct
9 Correct 23 ms 10104 KB Output is correct
10 Correct 19 ms 8532 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 10320 KB Output is correct
2 Correct 39 ms 10228 KB Output is correct
3 Correct 27 ms 10360 KB Output is correct
4 Correct 26 ms 10332 KB Output is correct
5 Correct 40 ms 10244 KB Output is correct
6 Correct 26 ms 10320 KB Output is correct
7 Correct 26 ms 10324 KB Output is correct
8 Correct 40 ms 10228 KB Output is correct
9 Correct 28 ms 10488 KB Output is correct
10 Correct 40 ms 10432 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2400 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2564 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2400 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2564 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2516 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2400 KB Output is correct
14 Correct 1 ms 2400 KB Output is correct
15 Correct 1 ms 2516 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2404 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2400 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2564 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2516 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2400 KB Output is correct
14 Correct 1 ms 2400 KB Output is correct
15 Correct 1 ms 2516 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2404 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 3 ms 5468 KB Output is correct
22 Correct 19 ms 28076 KB Output is correct
23 Correct 6 ms 8288 KB Output is correct
24 Correct 3 ms 5728 KB Output is correct
25 Correct 4 ms 7008 KB Output is correct
26 Correct 3 ms 5212 KB Output is correct
27 Correct 4 ms 6880 KB Output is correct
28 Correct 1 ms 2904 KB Output is correct
29 Correct 1 ms 2908 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 10212 KB Output is correct
2 Correct 35 ms 10228 KB Output is correct
3 Correct 24 ms 10348 KB Output is correct
4 Correct 25 ms 10120 KB Output is correct
5 Correct 36 ms 10068 KB Output is correct
6 Correct 23 ms 10112 KB Output is correct
7 Correct 23 ms 10064 KB Output is correct
8 Correct 23 ms 10116 KB Output is correct
9 Correct 25 ms 10232 KB Output is correct
10 Correct 35 ms 10156 KB Output is correct
11 Correct 15 ms 8568 KB Output is correct
12 Correct 15 ms 8540 KB Output is correct
13 Correct 16 ms 8456 KB Output is correct
14 Correct 19 ms 8360 KB Output is correct
15 Correct 30 ms 9980 KB Output is correct
16 Correct 16 ms 8540 KB Output is correct
17 Correct 23 ms 8540 KB Output is correct
18 Correct 25 ms 10324 KB Output is correct
19 Correct 23 ms 10104 KB Output is correct
20 Correct 19 ms 8532 KB Output is correct
21 Correct 39 ms 10320 KB Output is correct
22 Correct 39 ms 10228 KB Output is correct
23 Correct 27 ms 10360 KB Output is correct
24 Correct 26 ms 10332 KB Output is correct
25 Correct 40 ms 10244 KB Output is correct
26 Correct 26 ms 10320 KB Output is correct
27 Correct 26 ms 10324 KB Output is correct
28 Correct 40 ms 10228 KB Output is correct
29 Correct 28 ms 10488 KB Output is correct
30 Correct 40 ms 10432 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2400 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2564 KB Output is correct
36 Correct 1 ms 2516 KB Output is correct
37 Correct 1 ms 2392 KB Output is correct
38 Correct 1 ms 2392 KB Output is correct
39 Correct 1 ms 2648 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2516 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2400 KB Output is correct
44 Correct 1 ms 2400 KB Output is correct
45 Correct 1 ms 2516 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2404 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2392 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 3 ms 5468 KB Output is correct
52 Correct 19 ms 28076 KB Output is correct
53 Correct 6 ms 8288 KB Output is correct
54 Correct 3 ms 5728 KB Output is correct
55 Correct 4 ms 7008 KB Output is correct
56 Correct 3 ms 5212 KB Output is correct
57 Correct 4 ms 6880 KB Output is correct
58 Correct 1 ms 2904 KB Output is correct
59 Correct 1 ms 2908 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Runtime error 188 ms 262144 KB Execution killed with signal 9
62 Halted 0 ms 0 KB -