Submission #216025

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
216025	2020-03-26T15:54:22 Z	emil_physmath	Ancient Books (IOI17_books)	C++17	50 / 100	192 ms	23396 KB

books

#include "books.h"
#include <algorithm>
#include <vector>
#include <cmath>
using namespace std;

long long minimum_walk(vector<int> a, int s)
{
    int n = a.size();
    long long ans = 0;
    vector<bool> used(n);
    vector<pair<int, int> > p;
    for (int i = 0; i < n; ++i)
        if (!used[i])
        {
            int j = i;
            p.push_back({i, i});
            do {
                used[j] = true;
                j = a[j];
                p.back().second = max(p.back().second, j);
            } while(j != i);
        }
    sort(p.begin(), p.end());
    int r = 0;
    for (pair<int, int>& x: p)
        if (x.first <= r)
            r = max(r, x.second);
        else if (x.first != x.second)
        {
            ans += 2 * (x.first - r);
            // ans = max(ans, 2LL * x.first);
            r = x.second;
        }
    for (int i = 0; i < n; ++i)
        ans += abs(a[i] - i);
    return ans;
}

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	256 KB	Output is correct
2	Correct	4 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	4 ms	256 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	256 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	4 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	256 KB	Output is correct
2	Correct	4 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	4 ms	256 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	256 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	4 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	4 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	5 ms	384 KB	Output is correct
22	Correct	5 ms	384 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	4 ms	256 KB	Output is correct
25	Correct	5 ms	256 KB	Output is correct
26	Correct	4 ms	256 KB	Output is correct
27	Correct	4 ms	256 KB	Output is correct
28	Correct	5 ms	384 KB	Output is correct
29	Correct	5 ms	384 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	256 KB	Output is correct
2	Correct	4 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	4 ms	256 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	256 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	4 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	4 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	5 ms	384 KB	Output is correct
22	Correct	5 ms	384 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	4 ms	256 KB	Output is correct
25	Correct	5 ms	256 KB	Output is correct
26	Correct	4 ms	256 KB	Output is correct
27	Correct	4 ms	256 KB	Output is correct
28	Correct	5 ms	384 KB	Output is correct
29	Correct	5 ms	384 KB	Output is correct
30	Correct	187 ms	14968 KB	Output is correct
31	Correct	185 ms	14968 KB	Output is correct
32	Correct	192 ms	23396 KB	Output is correct
33	Correct	181 ms	23396 KB	Output is correct
34	Correct	183 ms	23396 KB	Output is correct
35	Correct	173 ms	23396 KB	Output is correct
36	Correct	170 ms	17132 KB	Output is correct
37	Correct	165 ms	15604 KB	Output is correct
38	Correct	190 ms	15152 KB	Output is correct
39	Correct	164 ms	15224 KB	Output is correct
40	Correct	170 ms	14968 KB	Output is correct
41	Correct	182 ms	14968 KB	Output is correct
42	Correct	176 ms	14968 KB	Output is correct
43	Correct	182 ms	23372 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	5 ms	256 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	256 KB	Output is correct
2	Correct	4 ms	256 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	4 ms	256 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	256 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	4 ms	256 KB	Output is correct
12	Correct	4 ms	256 KB	Output is correct
13	Correct	4 ms	256 KB	Output is correct
14	Correct	4 ms	256 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	256 KB	Output is correct
17	Correct	4 ms	256 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	4 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	5 ms	384 KB	Output is correct
22	Correct	5 ms	384 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	4 ms	256 KB	Output is correct
25	Correct	5 ms	256 KB	Output is correct
26	Correct	4 ms	256 KB	Output is correct
27	Correct	4 ms	256 KB	Output is correct
28	Correct	5 ms	384 KB	Output is correct
29	Correct	5 ms	384 KB	Output is correct
30	Correct	187 ms	14968 KB	Output is correct
31	Correct	185 ms	14968 KB	Output is correct
32	Correct	192 ms	23396 KB	Output is correct
33	Correct	181 ms	23396 KB	Output is correct
34	Correct	183 ms	23396 KB	Output is correct
35	Correct	173 ms	23396 KB	Output is correct
36	Correct	170 ms	17132 KB	Output is correct
37	Correct	165 ms	15604 KB	Output is correct
38	Correct	190 ms	15152 KB	Output is correct
39	Correct	164 ms	15224 KB	Output is correct
40	Correct	170 ms	14968 KB	Output is correct
41	Correct	182 ms	14968 KB	Output is correct
42	Correct	176 ms	14968 KB	Output is correct
43	Correct	182 ms	23372 KB	Output is correct
44	Incorrect	5 ms	256 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-