Submission #46919

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
46919	2018-04-24T17:33:45 Z	SpaimaCarpatilor	Ancient Books (IOI17_books)	C++17	50 / 100	942 ms	110228 KB

books

#include "books.h"
#include<bits/stdc++.h>

using namespace std;

int nr, N, BG, p[1000009], d[1000009];
set < int > S;
vector < int > v[1000009];

void add (int node, int newD)
{
    if (d[node] != -1) return ;
    d[node] = newD, v[newD].push_back (node), S.erase (node);
    int l = node, r = p[node];
    if (l > r) swap (l, r);
    while (1)
    {
        auto it = S.lower_bound (l);
        if (it == S.end () || *it > r) break;
        add (*it, newD);
    }
}

long long minimum_walk (vector < int > pp, int ss)
{
    N = pp.size (), BG = ss + 1;
    for (int i=1; i<=N; i++)
        p[i] = pp[i - 1] + 1;
    long long ans = 0;
    int lft = 0, rgt = 0;
    for (int i=1; i<=N; i++)
    {
        int curr = i - p[i];
        if (curr < 0) curr = -curr;
        ans += curr;
        if (i != p[i])
        {
            if (lft == 0) lft = i;
            rgt = i;
        }
    }
    if (lft == 0) return ans;
    for (int i=1; i<=N; i++)
        S.insert (i), d[i] = -1;
    add (BG, 0);
    for (int i=0; !v[i].empty (); i++)
        for (auto it : v[i])
        {
            if (it > 1) add (it - 1, i + 1);
            if (it < N) add (it + 1, i + 1);
        }
    int maxi = 0;
    for (int i=lft; i<=rgt; i++)
        maxi = max (maxi, d[i]);
    ans += 2LL * maxi;
    return ans;
}

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	20 ms	23800 KB	Output is correct
2	Correct	20 ms	23908 KB	Output is correct
3	Correct	20 ms	23984 KB	Output is correct
4	Correct	20 ms	23984 KB	Output is correct
5	Correct	20 ms	23984 KB	Output is correct
6	Correct	25 ms	23984 KB	Output is correct
7	Correct	20 ms	23984 KB	Output is correct
8	Correct	21 ms	23984 KB	Output is correct
9	Correct	20 ms	23984 KB	Output is correct
10	Correct	20 ms	23984 KB	Output is correct
11	Correct	21 ms	23984 KB	Output is correct
12	Correct	20 ms	23984 KB	Output is correct
13	Correct	21 ms	24044 KB	Output is correct
14	Correct	20 ms	24044 KB	Output is correct
15	Correct	22 ms	24044 KB	Output is correct
16	Correct	21 ms	24044 KB	Output is correct
17	Correct	21 ms	24044 KB	Output is correct
18	Correct	24 ms	24044 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	20 ms	23800 KB	Output is correct
2	Correct	20 ms	23908 KB	Output is correct
3	Correct	20 ms	23984 KB	Output is correct
4	Correct	20 ms	23984 KB	Output is correct
5	Correct	20 ms	23984 KB	Output is correct
6	Correct	25 ms	23984 KB	Output is correct
7	Correct	20 ms	23984 KB	Output is correct
8	Correct	21 ms	23984 KB	Output is correct
9	Correct	20 ms	23984 KB	Output is correct
10	Correct	20 ms	23984 KB	Output is correct
11	Correct	21 ms	23984 KB	Output is correct
12	Correct	20 ms	23984 KB	Output is correct
13	Correct	21 ms	24044 KB	Output is correct
14	Correct	20 ms	24044 KB	Output is correct
15	Correct	22 ms	24044 KB	Output is correct
16	Correct	21 ms	24044 KB	Output is correct
17	Correct	21 ms	24044 KB	Output is correct
18	Correct	24 ms	24044 KB	Output is correct
19	Correct	21 ms	24172 KB	Output is correct
20	Correct	20 ms	24172 KB	Output is correct
21	Correct	22 ms	24172 KB	Output is correct
22	Correct	20 ms	24172 KB	Output is correct
23	Correct	20 ms	24188 KB	Output is correct
24	Correct	21 ms	24188 KB	Output is correct
25	Correct	21 ms	24188 KB	Output is correct
26	Correct	20 ms	24188 KB	Output is correct
27	Correct	22 ms	24188 KB	Output is correct
28	Correct	22 ms	24188 KB	Output is correct
29	Correct	20 ms	24188 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	20 ms	23800 KB	Output is correct
2	Correct	20 ms	23908 KB	Output is correct
3	Correct	20 ms	23984 KB	Output is correct
4	Correct	20 ms	23984 KB	Output is correct
5	Correct	20 ms	23984 KB	Output is correct
6	Correct	25 ms	23984 KB	Output is correct
7	Correct	20 ms	23984 KB	Output is correct
8	Correct	21 ms	23984 KB	Output is correct
9	Correct	20 ms	23984 KB	Output is correct
10	Correct	20 ms	23984 KB	Output is correct
11	Correct	21 ms	23984 KB	Output is correct
12	Correct	20 ms	23984 KB	Output is correct
13	Correct	21 ms	24044 KB	Output is correct
14	Correct	20 ms	24044 KB	Output is correct
15	Correct	22 ms	24044 KB	Output is correct
16	Correct	21 ms	24044 KB	Output is correct
17	Correct	21 ms	24044 KB	Output is correct
18	Correct	24 ms	24044 KB	Output is correct
19	Correct	21 ms	24172 KB	Output is correct
20	Correct	20 ms	24172 KB	Output is correct
21	Correct	22 ms	24172 KB	Output is correct
22	Correct	20 ms	24172 KB	Output is correct
23	Correct	20 ms	24188 KB	Output is correct
24	Correct	21 ms	24188 KB	Output is correct
25	Correct	21 ms	24188 KB	Output is correct
26	Correct	20 ms	24188 KB	Output is correct
27	Correct	22 ms	24188 KB	Output is correct
28	Correct	22 ms	24188 KB	Output is correct
29	Correct	20 ms	24188 KB	Output is correct
30	Correct	898 ms	110228 KB	Output is correct
31	Correct	823 ms	110228 KB	Output is correct
32	Correct	167 ms	110228 KB	Output is correct
33	Correct	883 ms	110228 KB	Output is correct
34	Correct	876 ms	110228 KB	Output is correct
35	Correct	924 ms	110228 KB	Output is correct
36	Correct	878 ms	110228 KB	Output is correct
37	Correct	837 ms	110228 KB	Output is correct
38	Correct	835 ms	110228 KB	Output is correct
39	Correct	826 ms	110228 KB	Output is correct
40	Correct	845 ms	110228 KB	Output is correct
41	Correct	860 ms	110228 KB	Output is correct
42	Correct	879 ms	110228 KB	Output is correct
43	Correct	942 ms	110228 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	110228 KB	Output is correct
2	Correct	22 ms	110228 KB	Output is correct
3	Correct	21 ms	110228 KB	Output is correct
4	Incorrect	28 ms	110228 KB	3rd lines differ - on the 1st token, expected: '2094', found: '1592'
5	Halted	0 ms	0 KB	-

Subtask #5

0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	20 ms	23800 KB	Output is correct
2	Correct	20 ms	23908 KB	Output is correct
3	Correct	20 ms	23984 KB	Output is correct
4	Correct	20 ms	23984 KB	Output is correct
5	Correct	20 ms	23984 KB	Output is correct
6	Correct	25 ms	23984 KB	Output is correct
7	Correct	20 ms	23984 KB	Output is correct
8	Correct	21 ms	23984 KB	Output is correct
9	Correct	20 ms	23984 KB	Output is correct
10	Correct	20 ms	23984 KB	Output is correct
11	Correct	21 ms	23984 KB	Output is correct
12	Correct	20 ms	23984 KB	Output is correct
13	Correct	21 ms	24044 KB	Output is correct
14	Correct	20 ms	24044 KB	Output is correct
15	Correct	22 ms	24044 KB	Output is correct
16	Correct	21 ms	24044 KB	Output is correct
17	Correct	21 ms	24044 KB	Output is correct
18	Correct	24 ms	24044 KB	Output is correct
19	Correct	21 ms	24172 KB	Output is correct
20	Correct	20 ms	24172 KB	Output is correct
21	Correct	22 ms	24172 KB	Output is correct
22	Correct	20 ms	24172 KB	Output is correct
23	Correct	20 ms	24188 KB	Output is correct
24	Correct	21 ms	24188 KB	Output is correct
25	Correct	21 ms	24188 KB	Output is correct
26	Correct	20 ms	24188 KB	Output is correct
27	Correct	22 ms	24188 KB	Output is correct
28	Correct	22 ms	24188 KB	Output is correct
29	Correct	20 ms	24188 KB	Output is correct
30	Correct	898 ms	110228 KB	Output is correct
31	Correct	823 ms	110228 KB	Output is correct
32	Correct	167 ms	110228 KB	Output is correct
33	Correct	883 ms	110228 KB	Output is correct
34	Correct	876 ms	110228 KB	Output is correct
35	Correct	924 ms	110228 KB	Output is correct
36	Correct	878 ms	110228 KB	Output is correct
37	Correct	837 ms	110228 KB	Output is correct
38	Correct	835 ms	110228 KB	Output is correct
39	Correct	826 ms	110228 KB	Output is correct
40	Correct	845 ms	110228 KB	Output is correct
41	Correct	860 ms	110228 KB	Output is correct
42	Correct	879 ms	110228 KB	Output is correct
43	Correct	942 ms	110228 KB	Output is correct
44	Correct	22 ms	110228 KB	Output is correct
45	Correct	22 ms	110228 KB	Output is correct
46	Correct	21 ms	110228 KB	Output is correct
47	Incorrect	28 ms	110228 KB	3rd lines differ - on the 1st token, expected: '2094', found: '1592'
48	Halted	0 ms	0 KB	-