Submission #51567

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
51567	2018-06-18T16:52:50 Z	aome	Ancient Books (IOI17_books)	C++17	50 / 100	225 ms	13412 KB

books

#include <bits/stdc++.h>
#include "books.h"
 
using namespace std;
 
const int N = 1000005;
 
bool visit[N];
 
long long minimum_walk(vector<int> p, int s) {
	int n = p.size();	
	long long res = 0;

	for (int i = 0; i < n; ++i) res += abs(i - p[i]);


	int l, r;
	l = r = s;

	queue<int> qu;
	qu.push(s), visit[s] = 1;

	while (1) {
		while (qu.size()) {
			int u = qu.front(); qu.pop();

			while (l > p[u]) {
				l--, visit[l] = 1, qu.push(l);
			}
			while (r < p[u]) {
				r++, visit[r] = 1, qu.push(r);
			}
		}

		int cnt = 0;
		bool found = 0;
		while (1) {
			++cnt;

			l--;
			if (l >= 0 && p[l] != l) {
				found = 1, qu.push(l); break;
			}
			r++;
			if (r < n && p[r] != r) {
				found = 1, qu.push(r); break;
			}

			if (l < 0 && r >= n) break;
		}

		if (!found) break;
		res += cnt * 2;
	}

	return res;
}

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	540 KB	Output is correct
4	Correct	2 ms	540 KB	Output is correct
5	Correct	2 ms	540 KB	Output is correct
6	Correct	2 ms	540 KB	Output is correct
7	Correct	2 ms	540 KB	Output is correct
8	Correct	2 ms	568 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	2 ms	576 KB	Output is correct
11	Correct	2 ms	576 KB	Output is correct
12	Correct	2 ms	576 KB	Output is correct
13	Correct	2 ms	576 KB	Output is correct
14	Correct	2 ms	576 KB	Output is correct
15	Correct	3 ms	576 KB	Output is correct
16	Correct	3 ms	576 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	540 KB	Output is correct
4	Correct	2 ms	540 KB	Output is correct
5	Correct	2 ms	540 KB	Output is correct
6	Correct	2 ms	540 KB	Output is correct
7	Correct	2 ms	540 KB	Output is correct
8	Correct	2 ms	568 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	2 ms	576 KB	Output is correct
11	Correct	2 ms	576 KB	Output is correct
12	Correct	2 ms	576 KB	Output is correct
13	Correct	2 ms	576 KB	Output is correct
14	Correct	2 ms	576 KB	Output is correct
15	Correct	3 ms	576 KB	Output is correct
16	Correct	3 ms	576 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	2 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	612 KB	Output is correct
24	Correct	2 ms	612 KB	Output is correct
25	Correct	3 ms	612 KB	Output is correct
26	Correct	2 ms	612 KB	Output is correct
27	Correct	3 ms	612 KB	Output is correct
28	Correct	3 ms	612 KB	Output is correct
29	Correct	2 ms	612 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	540 KB	Output is correct
4	Correct	2 ms	540 KB	Output is correct
5	Correct	2 ms	540 KB	Output is correct
6	Correct	2 ms	540 KB	Output is correct
7	Correct	2 ms	540 KB	Output is correct
8	Correct	2 ms	568 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	2 ms	576 KB	Output is correct
11	Correct	2 ms	576 KB	Output is correct
12	Correct	2 ms	576 KB	Output is correct
13	Correct	2 ms	576 KB	Output is correct
14	Correct	2 ms	576 KB	Output is correct
15	Correct	3 ms	576 KB	Output is correct
16	Correct	3 ms	576 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	2 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	612 KB	Output is correct
24	Correct	2 ms	612 KB	Output is correct
25	Correct	3 ms	612 KB	Output is correct
26	Correct	2 ms	612 KB	Output is correct
27	Correct	3 ms	612 KB	Output is correct
28	Correct	3 ms	612 KB	Output is correct
29	Correct	2 ms	612 KB	Output is correct
30	Correct	168 ms	13412 KB	Output is correct
31	Correct	225 ms	13412 KB	Output is correct
32	Correct	182 ms	13412 KB	Output is correct
33	Correct	162 ms	13412 KB	Output is correct
34	Correct	140 ms	13412 KB	Output is correct
35	Correct	142 ms	13412 KB	Output is correct
36	Correct	158 ms	13412 KB	Output is correct
37	Correct	169 ms	13412 KB	Output is correct
38	Correct	155 ms	13412 KB	Output is correct
39	Correct	148 ms	13412 KB	Output is correct
40	Correct	152 ms	13412 KB	Output is correct
41	Correct	162 ms	13412 KB	Output is correct
42	Correct	164 ms	13412 KB	Output is correct
43	Correct	142 ms	13412 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	13412 KB	Output is correct
2	Correct	3 ms	13412 KB	Output is correct
3	Correct	3 ms	13412 KB	Output is correct
4	Incorrect	3 ms	13412 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	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	540 KB	Output is correct
4	Correct	2 ms	540 KB	Output is correct
5	Correct	2 ms	540 KB	Output is correct
6	Correct	2 ms	540 KB	Output is correct
7	Correct	2 ms	540 KB	Output is correct
8	Correct	2 ms	568 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	2 ms	576 KB	Output is correct
11	Correct	2 ms	576 KB	Output is correct
12	Correct	2 ms	576 KB	Output is correct
13	Correct	2 ms	576 KB	Output is correct
14	Correct	2 ms	576 KB	Output is correct
15	Correct	3 ms	576 KB	Output is correct
16	Correct	3 ms	576 KB	Output is correct
17	Correct	2 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	2 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	2 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	612 KB	Output is correct
24	Correct	2 ms	612 KB	Output is correct
25	Correct	3 ms	612 KB	Output is correct
26	Correct	2 ms	612 KB	Output is correct
27	Correct	3 ms	612 KB	Output is correct
28	Correct	3 ms	612 KB	Output is correct
29	Correct	2 ms	612 KB	Output is correct
30	Correct	168 ms	13412 KB	Output is correct
31	Correct	225 ms	13412 KB	Output is correct
32	Correct	182 ms	13412 KB	Output is correct
33	Correct	162 ms	13412 KB	Output is correct
34	Correct	140 ms	13412 KB	Output is correct
35	Correct	142 ms	13412 KB	Output is correct
36	Correct	158 ms	13412 KB	Output is correct
37	Correct	169 ms	13412 KB	Output is correct
38	Correct	155 ms	13412 KB	Output is correct
39	Correct	148 ms	13412 KB	Output is correct
40	Correct	152 ms	13412 KB	Output is correct
41	Correct	162 ms	13412 KB	Output is correct
42	Correct	164 ms	13412 KB	Output is correct
43	Correct	142 ms	13412 KB	Output is correct
44	Correct	3 ms	13412 KB	Output is correct
45	Correct	3 ms	13412 KB	Output is correct
46	Correct	3 ms	13412 KB	Output is correct
47	Incorrect	3 ms	13412 KB	3rd lines differ - on the 1st token, expected: '2094', found: '1592'
48	Halted	0 ms	0 KB	-