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Submission #1016397

# Submission time Handle Problem Language Result Execution time Memory
1016397 2024-07-08T04:07:33 Z Hanksburger Group Photo (JOI21_ho_t3) C++17
100 / 100
 137 ms 98640 KB 
#include <bits/stdc++.h>
using namespace std;
int x[5005][5005], a[5005], b[5005], dp[5005];
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    for (int i=1; i<=n; i++)
    {
        cin >> a[i];
        b[a[i]]=i;
    }
    for (int i=1; i<=n; i++)
        for (int j=1; j<=n; j++)
            x[i][j]=x[i-1][j]+(j>=b[i]);
    for (int i=1; i<=n; i++)
    {
        dp[i]=1e9;
        int s=0;
        for (int j=i; j; j--)
        {
            s+=x[i][n]-x[i][b[j]]-x[j][n]+x[j][b[j]]+x[n][b[j]]-x[i][b[j]];
            dp[i]=min(dp[i], dp[j-1]+s);
        }
    }
    cout << dp[n];
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 1 ms 2396 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2512 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 1 ms 2396 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2512 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 1 ms 2396 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2512 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 1 ms 2396 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2512 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 4 ms 16728 KB Output is correct
32 Correct 3 ms 16732 KB Output is correct
33 Correct 3 ms 16732 KB Output is correct
34 Correct 3 ms 16952 KB Output is correct
35 Correct 3 ms 16732 KB Output is correct
36 Correct 3 ms 16732 KB Output is correct
37 Correct 3 ms 16732 KB Output is correct
38 Correct 3 ms 16928 KB Output is correct
39 Correct 3 ms 16732 KB Output is correct
40 Correct 3 ms 16728 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 1 ms 2396 KB Output is correct
6 Correct 1 ms 2516 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2512 KB Output is correct
10 Correct 0 ms 2512 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 4 ms 16728 KB Output is correct
32 Correct 3 ms 16732 KB Output is correct
33 Correct 3 ms 16732 KB Output is correct
34 Correct 3 ms 16952 KB Output is correct
35 Correct 3 ms 16732 KB Output is correct
36 Correct 3 ms 16732 KB Output is correct
37 Correct 3 ms 16732 KB Output is correct
38 Correct 3 ms 16928 KB Output is correct
39 Correct 3 ms 16732 KB Output is correct
40 Correct 3 ms 16728 KB Output is correct
41 Correct 120 ms 98388 KB Output is correct
42 Correct 115 ms 98420 KB Output is correct
43 Correct 120 ms 98384 KB Output is correct
44 Correct 124 ms 98640 KB Output is correct
45 Correct 133 ms 98388 KB Output is correct
46 Correct 119 ms 98340 KB Output is correct
47 Correct 115 ms 98248 KB Output is correct
48 Correct 134 ms 98384 KB Output is correct
49 Correct 119 ms 98256 KB Output is correct
50 Correct 121 ms 98412 KB Output is correct
51 Correct 137 ms 98384 KB Output is correct
52 Correct 123 ms 98436 KB Output is correct
53 Correct 118 ms 98388 KB Output is correct
54 Correct 126 ms 98388 KB Output is correct
55 Correct 119 ms 98384 KB Output is correct