oj.uz

답안 #915789

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
915789 2024-01-24T17:31:33 Z ace5 Group Photo (JOI21_ho_t3) C++17
100 / 100
 160 ms 117644 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxn = 5001;

short lsf[maxn][maxn];
int otr[maxn][maxn];
int dp[maxn];
int h[maxn];
int ih[maxn];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    for(int i = 0;i < n;++i)
    {
        cin >> h[i];
        h[i]--;
        ih[h[i]] = i;
    }
    for(int i = 0;i < n;++i)
    {
        for(int j = n-1;j >= 0;--j)
        {
            lsf[i][j] = (j == n-1 ? ih[i] > ih[j] : (ih[i] > ih[j]) + lsf[i][j+1]);
        }
    }
    for(int l = 0;l < n;++l)
    {
        for(int r = l;r < n;++r)
        {
            otr[l][r] = (l == r ? lsf[l][l] : lsf[r][l]*2 - lsf[r][r] - r + l + otr[l][r-1]);
        }
    }
    dp[n] = 0;
    for(int i = n-1;i >= 0;--i)
    {
        dp[i] = 1e9;
        for(int j = i+1;j <= n;++j)
        {
            dp[i] = min(dp[i],dp[j] + otr[i][j-1]);
        }
    }
    cout << dp[0];
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4448 KB Output is correct
14 Correct 1 ms 4572 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 2 ms 4564 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4448 KB Output is correct
19 Correct 1 ms 4448 KB Output is correct
20 Correct 1 ms 4448 KB Output is correct

Subtask #3
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4448 KB Output is correct
14 Correct 1 ms 4572 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 2 ms 4564 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4448 KB Output is correct
19 Correct 1 ms 4448 KB Output is correct
20 Correct 1 ms 4448 KB Output is correct
21 Correct 2 ms 8544 KB Output is correct
22 Correct 2 ms 8544 KB Output is correct
23 Correct 2 ms 8544 KB Output is correct
24 Correct 2 ms 8544 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8544 KB Output is correct
27 Correct 2 ms 8544 KB Output is correct
28 Correct 2 ms 8696 KB Output is correct
29 Correct 2 ms 8544 KB Output is correct
30 Correct 2 ms 8544 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4448 KB Output is correct
14 Correct 1 ms 4572 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 2 ms 4564 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4448 KB Output is correct
19 Correct 1 ms 4448 KB Output is correct
20 Correct 1 ms 4448 KB Output is correct
21 Correct 2 ms 8544 KB Output is correct
22 Correct 2 ms 8544 KB Output is correct
23 Correct 2 ms 8544 KB Output is correct
24 Correct 2 ms 8544 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8544 KB Output is correct
27 Correct 2 ms 8544 KB Output is correct
28 Correct 2 ms 8696 KB Output is correct
29 Correct 2 ms 8544 KB Output is correct
30 Correct 2 ms 8544 KB Output is correct
31 Correct 8 ms 26976 KB Output is correct
32 Correct 8 ms 26976 KB Output is correct
33 Correct 8 ms 26980 KB Output is correct
34 Correct 7 ms 27088 KB Output is correct
35 Correct 7 ms 26972 KB Output is correct
36 Correct 7 ms 26972 KB Output is correct
37 Correct 8 ms 26968 KB Output is correct
38 Correct 8 ms 26968 KB Output is correct
39 Correct 7 ms 26972 KB Output is correct
40 Correct 7 ms 26968 KB Output is correct

Subtask #5
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4448 KB Output is correct
14 Correct 1 ms 4572 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 2 ms 4564 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4448 KB Output is correct
19 Correct 1 ms 4448 KB Output is correct
20 Correct 1 ms 4448 KB Output is correct
21 Correct 2 ms 8544 KB Output is correct
22 Correct 2 ms 8544 KB Output is correct
23 Correct 2 ms 8544 KB Output is correct
24 Correct 2 ms 8544 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8544 KB Output is correct
27 Correct 2 ms 8544 KB Output is correct
28 Correct 2 ms 8696 KB Output is correct
29 Correct 2 ms 8544 KB Output is correct
30 Correct 2 ms 8544 KB Output is correct
31 Correct 8 ms 26976 KB Output is correct
32 Correct 8 ms 26976 KB Output is correct
33 Correct 8 ms 26980 KB Output is correct
34 Correct 7 ms 27088 KB Output is correct
35 Correct 7 ms 26972 KB Output is correct
36 Correct 7 ms 26972 KB Output is correct
37 Correct 8 ms 26968 KB Output is correct
38 Correct 8 ms 26968 KB Output is correct
39 Correct 7 ms 26972 KB Output is correct
40 Correct 7 ms 26968 KB Output is correct
41 Correct 154 ms 117644 KB Output is correct
42 Correct 155 ms 117244 KB Output is correct
43 Correct 154 ms 117332 KB Output is correct
44 Correct 152 ms 117340 KB Output is correct
45 Correct 157 ms 117328 KB Output is correct
46 Correct 153 ms 117328 KB Output is correct
47 Correct 156 ms 117308 KB Output is correct
48 Correct 160 ms 117540 KB Output is correct
49 Correct 151 ms 117332 KB Output is correct
50 Correct 154 ms 117280 KB Output is correct
51 Correct 153 ms 117328 KB Output is correct
52 Correct 154 ms 117328 KB Output is correct
53 Correct 153 ms 117332 KB Output is correct
54 Correct 157 ms 117580 KB Output is correct
55 Correct 154 ms 117584 KB Output is correct