Submission #593151

# Submission time Handle Problem Language Result Execution time Memory
593151 2022-07-10T13:15:06 Z piOOE Group Photo (JOI21_ho_t3) C++17
100 / 100
157 ms 196480 KB
#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;
}
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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