답안 #935069

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
935069	2024-02-28T14:11:00 Z	haxorman	Group Photo (JOI21_ho_t3)	C++14	100 / 100	254 ms	197008 KB

Main

#include <bits/stdc++.h>
using namespace std;

#define int long long

const int mxN = 5007;

int arr[mxN], pos[mxN], inv[mxN][mxN], dp[mxN];

int f(int h) {
    if (!h) {
        return 0;
    }

    if (dp[h] != -1) {
        return dp[h];
    }
    
    int ret = INT_MAX, add = 0;
    for (int x = h; x >= 1; --x) {
        add += h - pos[x] + 2*inv[x][h] - inv[x][x];
        ret = min(ret, f(x-1) + add);
    }
    return dp[h] = ret;
}

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    
    int n;
    cin >> n;

    for (int i = 1; i <= n; ++i) {
        cin >> arr[i];
        pos[arr[i]] = i;
    }

    for (int y = 1; y <= n; ++y) {
        int cnt = 0;
        for (int i = 1; i <= n; ++i) {
            if (arr[i] > y) {
                ++cnt;
            }
            inv[arr[i]][y] = cnt;
        }
    }

    memset(dp, -1, sizeof(dp));
    cout << f(n) << "\n";
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 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	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 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	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	0 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	2392 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 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	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	0 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	2392 KB	Output is correct
21	Correct	2 ms	8536 KB	Output is correct
22	Correct	1 ms	8540 KB	Output is correct
23	Correct	1 ms	8652 KB	Output is correct
24	Correct	1 ms	8540 KB	Output is correct
25	Correct	2 ms	8540 KB	Output is correct
26	Correct	1 ms	8660 KB	Output is correct
27	Correct	1 ms	8540 KB	Output is correct
28	Correct	1 ms	8792 KB	Output is correct
29	Correct	2 ms	8540 KB	Output is correct
30	Correct	1 ms	8540 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 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	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	0 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	2392 KB	Output is correct
21	Correct	2 ms	8536 KB	Output is correct
22	Correct	1 ms	8540 KB	Output is correct
23	Correct	1 ms	8652 KB	Output is correct
24	Correct	1 ms	8540 KB	Output is correct
25	Correct	2 ms	8540 KB	Output is correct
26	Correct	1 ms	8660 KB	Output is correct
27	Correct	1 ms	8540 KB	Output is correct
28	Correct	1 ms	8792 KB	Output is correct
29	Correct	2 ms	8540 KB	Output is correct
30	Correct	1 ms	8540 KB	Output is correct
31	Correct	9 ms	33380 KB	Output is correct
32	Correct	6 ms	33372 KB	Output is correct
33	Correct	6 ms	33372 KB	Output is correct
34	Correct	6 ms	33368 KB	Output is correct
35	Correct	6 ms	33372 KB	Output is correct
36	Correct	6 ms	33272 KB	Output is correct
37	Correct	6 ms	33260 KB	Output is correct
38	Correct	6 ms	33372 KB	Output is correct
39	Correct	7 ms	33372 KB	Output is correct
40	Correct	6 ms	33372 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 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	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2392 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	0 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	2392 KB	Output is correct
21	Correct	2 ms	8536 KB	Output is correct
22	Correct	1 ms	8540 KB	Output is correct
23	Correct	1 ms	8652 KB	Output is correct
24	Correct	1 ms	8540 KB	Output is correct
25	Correct	2 ms	8540 KB	Output is correct
26	Correct	1 ms	8660 KB	Output is correct
27	Correct	1 ms	8540 KB	Output is correct
28	Correct	1 ms	8792 KB	Output is correct
29	Correct	2 ms	8540 KB	Output is correct
30	Correct	1 ms	8540 KB	Output is correct
31	Correct	9 ms	33380 KB	Output is correct
32	Correct	6 ms	33372 KB	Output is correct
33	Correct	6 ms	33372 KB	Output is correct
34	Correct	6 ms	33368 KB	Output is correct
35	Correct	6 ms	33372 KB	Output is correct
36	Correct	6 ms	33272 KB	Output is correct
37	Correct	6 ms	33260 KB	Output is correct
38	Correct	6 ms	33372 KB	Output is correct
39	Correct	7 ms	33372 KB	Output is correct
40	Correct	6 ms	33372 KB	Output is correct
41	Correct	254 ms	196944 KB	Output is correct
42	Correct	249 ms	196688 KB	Output is correct
43	Correct	237 ms	196664 KB	Output is correct
44	Correct	227 ms	196804 KB	Output is correct
45	Correct	226 ms	196688 KB	Output is correct
46	Correct	231 ms	196948 KB	Output is correct
47	Correct	231 ms	196944 KB	Output is correct
48	Correct	226 ms	196780 KB	Output is correct
49	Correct	231 ms	197008 KB	Output is correct
50	Correct	228 ms	196692 KB	Output is correct
51	Correct	223 ms	196940 KB	Output is correct
52	Correct	235 ms	196916 KB	Output is correct
53	Correct	226 ms	196764 KB	Output is correct
54	Correct	240 ms	196940 KB	Output is correct
55	Correct	229 ms	196728 KB	Output is correct

답안 #935069

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 36.0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
36.0 / 36.0