답안 #593151

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
593151	2022-07-10T13:15:06 Z	piOOE	Group Photo (JOI21_ho_t3)	C++17	100 / 100	157 ms	196480 KB

Main

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    vector<int> a(n), reva(n);
    vector<vector<int>> pl(n, vector<int>(n));
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
        --a[i];
        reva[a[i]] = i;
    }
    for (int i = 0; i < n; ++i) {
        pl[i][i] = 1;
        for (int j = i + 1; j < n; ++j) {
            pl[i][j] = pl[i][j - 1] + (reva[j] < reva[i]);
        }
    }
    vector<vector<int>> dp(n, vector<int>(n + 1, 1000'000'000));
    dp[n - 1][1] = 0;
    for (int x = n - 2; x >= 0; --x) {
        for (int cnt = 1; cnt + 1 + x <= n; ++cnt) {
            dp[x][1] = min(dp[x][1], dp[x + 1][cnt] + abs(pl[x][n - 1] - 1));
        }
        for (int cnt = 2; x + cnt <= n; ++cnt) {
            dp[x][cnt] = dp[x + 1][cnt - 1] + (pl[x][n - 1] - pl[x][x + cnt - 1]) + abs(pl[x][x + cnt - 1] - cnt);
        }
    }
    int ans = n * n;
    for (int i = 1; i <= n; ++i) {
        ans = min(ans, dp[0][i]);
    }
    cout << ans;
    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	320 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	320 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	320 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	596 KB	Output is correct
22	Correct	1 ms	596 KB	Output is correct
23	Correct	1 ms	596 KB	Output is correct
24	Correct	1 ms	628 KB	Output is correct
25	Correct	1 ms	596 KB	Output is correct
26	Correct	1 ms	596 KB	Output is correct
27	Correct	1 ms	596 KB	Output is correct
28	Correct	1 ms	596 KB	Output is correct
29	Correct	1 ms	596 KB	Output is correct
30	Correct	1 ms	596 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	320 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	596 KB	Output is correct
22	Correct	1 ms	596 KB	Output is correct
23	Correct	1 ms	596 KB	Output is correct
24	Correct	1 ms	628 KB	Output is correct
25	Correct	1 ms	596 KB	Output is correct
26	Correct	1 ms	596 KB	Output is correct
27	Correct	1 ms	596 KB	Output is correct
28	Correct	1 ms	596 KB	Output is correct
29	Correct	1 ms	596 KB	Output is correct
30	Correct	1 ms	596 KB	Output is correct
31	Correct	4 ms	5332 KB	Output is correct
32	Correct	4 ms	5332 KB	Output is correct
33	Correct	4 ms	5400 KB	Output is correct
34	Correct	4 ms	5324 KB	Output is correct
35	Correct	4 ms	5312 KB	Output is correct
36	Correct	4 ms	5300 KB	Output is correct
37	Correct	4 ms	5332 KB	Output is correct
38	Correct	4 ms	5332 KB	Output is correct
39	Correct	5 ms	5332 KB	Output is correct
40	Correct	4 ms	5332 KB	Output is correct

Subtask #5
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	320 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	596 KB	Output is correct
22	Correct	1 ms	596 KB	Output is correct
23	Correct	1 ms	596 KB	Output is correct
24	Correct	1 ms	628 KB	Output is correct
25	Correct	1 ms	596 KB	Output is correct
26	Correct	1 ms	596 KB	Output is correct
27	Correct	1 ms	596 KB	Output is correct
28	Correct	1 ms	596 KB	Output is correct
29	Correct	1 ms	596 KB	Output is correct
30	Correct	1 ms	596 KB	Output is correct
31	Correct	4 ms	5332 KB	Output is correct
32	Correct	4 ms	5332 KB	Output is correct
33	Correct	4 ms	5400 KB	Output is correct
34	Correct	4 ms	5324 KB	Output is correct
35	Correct	4 ms	5312 KB	Output is correct
36	Correct	4 ms	5300 KB	Output is correct
37	Correct	4 ms	5332 KB	Output is correct
38	Correct	4 ms	5332 KB	Output is correct
39	Correct	5 ms	5332 KB	Output is correct
40	Correct	4 ms	5332 KB	Output is correct
41	Correct	150 ms	196180 KB	Output is correct
42	Correct	148 ms	196308 KB	Output is correct
43	Correct	143 ms	196396 KB	Output is correct
44	Correct	155 ms	196328 KB	Output is correct
45	Correct	144 ms	196340 KB	Output is correct
46	Correct	156 ms	196376 KB	Output is correct
47	Correct	142 ms	196348 KB	Output is correct
48	Correct	154 ms	196380 KB	Output is correct
49	Correct	147 ms	196428 KB	Output is correct
50	Correct	144 ms	196352 KB	Output is correct
51	Correct	157 ms	196480 KB	Output is correct
52	Correct	142 ms	196428 KB	Output is correct
53	Correct	147 ms	196464 KB	Output is correct
54	Correct	149 ms	196468 KB	Output is correct
55	Correct	155 ms	196472 KB	Output is correct

답안 #593151

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