Submission #421813

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
421813	2021-06-09T12:33:18 Z	Harry464	Group Photo (JOI21_ho_t3)	C++14	100 / 100	665 ms	492 KB

Main

#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>

using namespace std;
typedef long long ll;

class fenw{

   vector <ll> bit;
   ll vel;

   public:

   fenw(ll a){

     vel = a;
     bit.resize(a+1);

   }

   void upd(ll x, ll val){

      while (x <= vel){

        bit[x] += val;
        x += x&-x;

      }

   }

   ll sum(ll x){

     ll s = 0;

     while (x > 0){

        s += bit[x];
        x -= x&-x;

     }

     return s;

   }


};

int main()
{
    ll n;
    cin >> n;

    vector <ll> a(n);

    for (int i = 0; i < n; i++)
        cin >> a[i];

    fenw bit1(n);

    vector <ll> poz(n+1);

    for (int i = 0; i < n; i++)
        poz[a[i]] = i + 1;

    vector <ll> dp(n+1, 1000000000000000000);
    dp[0] = 0;

    for (int i = 0; i < n; i++){

        fenw inv(n);

        ll brin = 0;

        ll dodatne_poz = 0;
        ll trenutne_poz = 0;


        for (int j = i + 1; j <= n; j++){

          trenutne_poz += j;
          dodatne_poz += poz[j] + bit1.sum(n) - bit1.sum(poz[j]);
          //cout << trenutne_poz << " " << dodatne_poz << endl;
          brin += inv.sum(n) - inv.sum(poz[j]);
          //cout << brin << endl;
          inv.upd(poz[j], 1);

          ll tren = dp[i] + dodatne_poz - trenutne_poz;
          ll manji = min(brin, ((j-i)*(j-i-1))/2 - brin);
          tren += manji;
          dp[j] = min(dp[j], tren);


        }

        bit1.upd(poz[i+1], 1);

    }

    cout << dp[n];

}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	272 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	292 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	272 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	292 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	292 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	292 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct

Subtask #3
32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	272 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	292 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	292 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	292 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	300 KB	Output is correct
23	Correct	2 ms	292 KB	Output is correct
24	Correct	1 ms	288 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	292 KB	Output is correct
27	Correct	2 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	272 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	292 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	292 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	292 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	300 KB	Output is correct
23	Correct	2 ms	292 KB	Output is correct
24	Correct	1 ms	288 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	292 KB	Output is correct
27	Correct	2 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	12 ms	204 KB	Output is correct
32	Correct	13 ms	204 KB	Output is correct
33	Correct	23 ms	328 KB	Output is correct
34	Correct	11 ms	204 KB	Output is correct
35	Correct	10 ms	324 KB	Output is correct
36	Correct	14 ms	320 KB	Output is correct
37	Correct	10 ms	324 KB	Output is correct
38	Correct	12 ms	320 KB	Output is correct
39	Correct	10 ms	204 KB	Output is correct
40	Correct	10 ms	204 KB	Output is correct

Subtask #5
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	272 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	292 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	292 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	292 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	300 KB	Output is correct
23	Correct	2 ms	292 KB	Output is correct
24	Correct	1 ms	288 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	292 KB	Output is correct
27	Correct	2 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	12 ms	204 KB	Output is correct
32	Correct	13 ms	204 KB	Output is correct
33	Correct	23 ms	328 KB	Output is correct
34	Correct	11 ms	204 KB	Output is correct
35	Correct	10 ms	324 KB	Output is correct
36	Correct	14 ms	320 KB	Output is correct
37	Correct	10 ms	324 KB	Output is correct
38	Correct	12 ms	320 KB	Output is correct
39	Correct	10 ms	204 KB	Output is correct
40	Correct	10 ms	204 KB	Output is correct
41	Correct	607 ms	488 KB	Output is correct
42	Correct	606 ms	492 KB	Output is correct
43	Correct	615 ms	492 KB	Output is correct
44	Correct	620 ms	492 KB	Output is correct
45	Correct	665 ms	488 KB	Output is correct
46	Correct	601 ms	484 KB	Output is correct
47	Correct	569 ms	488 KB	Output is correct
48	Correct	575 ms	492 KB	Output is correct
49	Correct	566 ms	488 KB	Output is correct
50	Correct	592 ms	484 KB	Output is correct
51	Correct	603 ms	488 KB	Output is correct
52	Correct	582 ms	484 KB	Output is correct
53	Correct	576 ms	484 KB	Output is correct
54	Correct	616 ms	484 KB	Output is correct
55	Correct	568 ms	488 KB	Output is correct

Submission #421813

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