Submission #748865

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
748865	2023-05-27T05:50:37 Z	wenqi	Ancient Books (IOI17_books)	C++17	50 / 100	245 ms	53052 KB

books

#include "books.h"
#include <algorithm>
#include <cmath>
#include <cstring>
#include <queue>
#include <set>

using namespace std;
using ll = long long;

bool seen[1000005];
vector<int> P;
vector<int> t;

ll dfs(int i)
{
	if (seen[i])
		return 0;
	seen[i] = true;
	t.push_back(i);
	return abs(i - P[i]) + dfs(P[i]);
}

ll minimum_walk(vector<int> p, int s)
{
	P = p;
	ll sum = 0;
	int n = p.size();
	vector<pair<int, int>> q;
	q.push_back({s, s});
	bool lol = false;
	for (int i = 0; i < n; i++)
	{
		if (seen[i] or i == p[i])
			continue;
		t.clear();
		sum += dfs(i);
		sort(t.begin(), t.end());
		q.push_back({t.front(), t.back()});
		auto [a, b] = q.back();
		if (a <= s and s <= b)
			lol = true;
	}
	sort(q.begin(), q.end());
	int lt = -1;
	for (auto [a, b] : q)
	{
		if (lt == -1)
		{
			lt = b;
		}
		if (a > lt)
		{
			sum += 2 * (a - lt);
			lt = b;
		}
		else
		{
			lt = max(lt, b);
		}
	}
	int mn = 1e9;
	for (int i = 0; i < n; i++)
		if (seen[i])
			mn = min(mn, abs(i - s));
	if (lol)
		sum += 2 * mn;
	return sum;
}

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	0 ms	292 KB	Output is correct
5	Correct	0 ms	288 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	292 KB	Output is correct
8	Correct	1 ms	292 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	288 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	0 ms	292 KB	Output is correct
5	Correct	0 ms	288 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	292 KB	Output is correct
8	Correct	1 ms	292 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	288 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	0 ms	292 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	0 ms	292 KB	Output is correct
5	Correct	0 ms	288 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	292 KB	Output is correct
8	Correct	1 ms	292 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	288 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	0 ms	292 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	245 ms	53052 KB	Output is correct
31	Correct	240 ms	33008 KB	Output is correct
32	Correct	97 ms	12172 KB	Output is correct
33	Correct	106 ms	15040 KB	Output is correct
34	Correct	110 ms	15076 KB	Output is correct
35	Correct	112 ms	15012 KB	Output is correct
36	Correct	116 ms	15236 KB	Output is correct
37	Correct	168 ms	13620 KB	Output is correct
38	Correct	135 ms	13572 KB	Output is correct
39	Correct	141 ms	13636 KB	Output is correct
40	Correct	166 ms	15300 KB	Output is correct
41	Correct	203 ms	30268 KB	Output is correct
42	Correct	191 ms	21316 KB	Output is correct
43	Correct	109 ms	15408 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	212 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	1 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	0 ms	292 KB	Output is correct
5	Correct	0 ms	288 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	292 KB	Output is correct
8	Correct	1 ms	292 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	288 KB	Output is correct
15	Correct	1 ms	288 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	0 ms	292 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	245 ms	53052 KB	Output is correct
31	Correct	240 ms	33008 KB	Output is correct
32	Correct	97 ms	12172 KB	Output is correct
33	Correct	106 ms	15040 KB	Output is correct
34	Correct	110 ms	15076 KB	Output is correct
35	Correct	112 ms	15012 KB	Output is correct
36	Correct	116 ms	15236 KB	Output is correct
37	Correct	168 ms	13620 KB	Output is correct
38	Correct	135 ms	13572 KB	Output is correct
39	Correct	141 ms	13636 KB	Output is correct
40	Correct	166 ms	15300 KB	Output is correct
41	Correct	203 ms	30268 KB	Output is correct
42	Correct	191 ms	21316 KB	Output is correct
43	Correct	109 ms	15408 KB	Output is correct
44	Incorrect	0 ms	212 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

Submission #748865

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 0 / 20.0

Subtask #5 0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
0 / 20.0

Subtask #5
0 / 30.0