oj.uz

Submission #413388

# Submission time Handle Problem Language Result Execution time Memory
413388 2021-05-28T16:07:52 Z ocarima Group Photo (JOI21_ho_t3) C++14
100 / 100
 1953 ms 626092 KB 
#include<bits/stdc++.h>

using namespace std;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define lli long long int
#define vi vector<int>
#define vlli vector<long long int>
#define pii pair<int, int>
#define plli pair<lli, lli>
#define rep(i, a, b) for(lli i = (a); i <= (b); i++)
#define repa(i, a, b) for(lli i = (a); i >= (b); i--)
#define repv(x, v) for(auto x : v)
#define debug(x) cout << #x << " = " << x << endl
#define debugsl(x) cout << #x << " = " << x << ", "
#define debugarr(x, a, b) cout << #x << " = ["; rep(ii, a, b) cout << x[ii] << ", "; cout << "]\n"
#define pb push_back
#define nl "\n"

#define MAX_N 5002
#define INF (1ll << 62)

#define menoresderecha(x, pos) ((x - 1) - menores[x][pos])

lli n, h[MAX_N], dp[MAX_N], pos[MAX_N], mov[MAX_N][MAX_N], c[MAX_N][MAX_N], menores[MAX_N][MAX_N], mayores[MAX_N][MAX_N];

int main()
{
    fastio;

    cin >> n;
    rep(i, 1, n){ cin >> h[i]; pos[h[i]] = i; }

    rep(i, 1, n){
        rep(j, 1, n){
            mayores[j][i] = mayores[j][i - 1];
            menores[j][i] = menores[j][i - 1];
        }
        rep(j, h[i] + 1, n) ++menores[j][i];
        repa(j, h[i] - 1, 1) ++mayores[j][i];
    }

    rep(i, 1, n){
        rep(j, i + 1, n){
            mov[i][j] = menores[j][pos[j]] - menores[i][pos[j]] + mayores[j][pos[j]];
        }
    }

    rep(i, 1, n){
        dp[i] = INF;
        repa(j, i, 1){
            if (j == i) c[j][i] = mayores[j][pos[j]];
            else c[j][i] = c[j][i - 1] + mov[j][i] - menoresderecha(i, pos[i]) + menoresderecha(j, pos[i]);

            dp[i] = min(dp[i], dp[j - 1] + c[j][i]);
        }
    }

    cout << dp[n];

    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 380 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 444 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 448 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 380 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 444 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 448 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 572 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 380 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 444 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 448 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 572 KB Output is correct
21 Correct 3 ms 4428 KB Output is correct
22 Correct 4 ms 4428 KB Output is correct
23 Correct 4 ms 4428 KB Output is correct
24 Correct 4 ms 4552 KB Output is correct
25 Correct 3 ms 4428 KB Output is correct
26 Correct 4 ms 4428 KB Output is correct
27 Correct 3 ms 4428 KB Output is correct
28 Correct 3 ms 4544 KB Output is correct
29 Correct 3 ms 4428 KB Output is correct
30 Correct 3 ms 4428 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 380 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 444 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 448 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 572 KB Output is correct
21 Correct 3 ms 4428 KB Output is correct
22 Correct 4 ms 4428 KB Output is correct
23 Correct 4 ms 4428 KB Output is correct
24 Correct 4 ms 4552 KB Output is correct
25 Correct 3 ms 4428 KB Output is correct
26 Correct 4 ms 4428 KB Output is correct
27 Correct 3 ms 4428 KB Output is correct
28 Correct 3 ms 4544 KB Output is correct
29 Correct 3 ms 4428 KB Output is correct
30 Correct 3 ms 4428 KB Output is correct
31 Correct 43 ms 28176 KB Output is correct
32 Correct 42 ms 28216 KB Output is correct
33 Correct 37 ms 28468 KB Output is correct
34 Correct 38 ms 28416 KB Output is correct
35 Correct 36 ms 28356 KB Output is correct
36 Correct 37 ms 28360 KB Output is correct
37 Correct 35 ms 28344 KB Output is correct
38 Correct 37 ms 28352 KB Output is correct
39 Correct 37 ms 28260 KB Output is correct
40 Correct 37 ms 28368 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 380 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 444 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 448 KB Output is correct
11 Correct 1 ms 588 KB Output is correct
12 Correct 1 ms 588 KB Output is correct
13 Correct 1 ms 588 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 588 KB Output is correct
17 Correct 1 ms 588 KB Output is correct
18 Correct 1 ms 588 KB Output is correct
19 Correct 1 ms 588 KB Output is correct
20 Correct 1 ms 572 KB Output is correct
21 Correct 3 ms 4428 KB Output is correct
22 Correct 4 ms 4428 KB Output is correct
23 Correct 4 ms 4428 KB Output is correct
24 Correct 4 ms 4552 KB Output is correct
25 Correct 3 ms 4428 KB Output is correct
26 Correct 4 ms 4428 KB Output is correct
27 Correct 3 ms 4428 KB Output is correct
28 Correct 3 ms 4544 KB Output is correct
29 Correct 3 ms 4428 KB Output is correct
30 Correct 3 ms 4428 KB Output is correct
31 Correct 43 ms 28176 KB Output is correct
32 Correct 42 ms 28216 KB Output is correct
33 Correct 37 ms 28468 KB Output is correct
34 Correct 38 ms 28416 KB Output is correct
35 Correct 36 ms 28356 KB Output is correct
36 Correct 37 ms 28360 KB Output is correct
37 Correct 35 ms 28344 KB Output is correct
38 Correct 37 ms 28352 KB Output is correct
39 Correct 37 ms 28260 KB Output is correct
40 Correct 37 ms 28368 KB Output is correct
41 Correct 1831 ms 625492 KB Output is correct
42 Correct 1850 ms 625664 KB Output is correct
43 Correct 1875 ms 625776 KB Output is correct
44 Correct 1849 ms 625692 KB Output is correct
45 Correct 1845 ms 625652 KB Output is correct
46 Correct 1834 ms 625928 KB Output is correct
47 Correct 1837 ms 625964 KB Output is correct
48 Correct 1878 ms 625944 KB Output is correct
49 Correct 1872 ms 625944 KB Output is correct
50 Correct 1874 ms 626080 KB Output is correct
51 Correct 1852 ms 626004 KB Output is correct
52 Correct 1953 ms 626052 KB Output is correct
53 Correct 1834 ms 626092 KB Output is correct
54 Correct 1860 ms 626024 KB Output is correct
55 Correct 1850 ms 625960 KB Output is correct