Submission #51568

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
51568	2018-06-18T16:55:26 Z	aome	Ancient Books (IOI17_books)	C++17	50 / 100	238 ms	13516 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 tl = l, tr = r;
		int cnt = 0;
		bool found = 0;
		while (1) {
			++cnt;

			l--;
			if (l >= 0 && p[l] != l) {
				found = 1, qu.push(l), r = tr; break;
			}
			r++;
			if (r < n && p[r] != r) {
				found = 1, qu.push(r), l = tl; 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	428 KB	Output is correct
4	Correct	2 ms	468 KB	Output is correct
5	Correct	2 ms	468 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	3 ms	544 KB	Output is correct
8	Correct	3 ms	628 KB	Output is correct
9	Correct	3 ms	628 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	2 ms	628 KB	Output is correct
12	Correct	2 ms	628 KB	Output is correct
13	Correct	2 ms	628 KB	Output is correct
14	Correct	2 ms	628 KB	Output is correct
15	Correct	2 ms	628 KB	Output is correct
16	Correct	2 ms	628 KB	Output is correct
17	Correct	2 ms	628 KB	Output is correct
18	Correct	2 ms	628 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	428 KB	Output is correct
4	Correct	2 ms	468 KB	Output is correct
5	Correct	2 ms	468 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	3 ms	544 KB	Output is correct
8	Correct	3 ms	628 KB	Output is correct
9	Correct	3 ms	628 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	2 ms	628 KB	Output is correct
12	Correct	2 ms	628 KB	Output is correct
13	Correct	2 ms	628 KB	Output is correct
14	Correct	2 ms	628 KB	Output is correct
15	Correct	2 ms	628 KB	Output is correct
16	Correct	2 ms	628 KB	Output is correct
17	Correct	2 ms	628 KB	Output is correct
18	Correct	2 ms	628 KB	Output is correct
19	Correct	2 ms	636 KB	Output is correct
20	Correct	2 ms	636 KB	Output is correct
21	Correct	2 ms	636 KB	Output is correct
22	Correct	2 ms	636 KB	Output is correct
23	Correct	2 ms	636 KB	Output is correct
24	Correct	2 ms	636 KB	Output is correct
25	Correct	2 ms	636 KB	Output is correct
26	Correct	2 ms	636 KB	Output is correct
27	Correct	2 ms	636 KB	Output is correct
28	Correct	2 ms	636 KB	Output is correct
29	Correct	2 ms	636 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	428 KB	Output is correct
4	Correct	2 ms	468 KB	Output is correct
5	Correct	2 ms	468 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	3 ms	544 KB	Output is correct
8	Correct	3 ms	628 KB	Output is correct
9	Correct	3 ms	628 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	2 ms	628 KB	Output is correct
12	Correct	2 ms	628 KB	Output is correct
13	Correct	2 ms	628 KB	Output is correct
14	Correct	2 ms	628 KB	Output is correct
15	Correct	2 ms	628 KB	Output is correct
16	Correct	2 ms	628 KB	Output is correct
17	Correct	2 ms	628 KB	Output is correct
18	Correct	2 ms	628 KB	Output is correct
19	Correct	2 ms	636 KB	Output is correct
20	Correct	2 ms	636 KB	Output is correct
21	Correct	2 ms	636 KB	Output is correct
22	Correct	2 ms	636 KB	Output is correct
23	Correct	2 ms	636 KB	Output is correct
24	Correct	2 ms	636 KB	Output is correct
25	Correct	2 ms	636 KB	Output is correct
26	Correct	2 ms	636 KB	Output is correct
27	Correct	2 ms	636 KB	Output is correct
28	Correct	2 ms	636 KB	Output is correct
29	Correct	2 ms	636 KB	Output is correct
30	Correct	191 ms	13516 KB	Output is correct
31	Correct	170 ms	13516 KB	Output is correct
32	Correct	136 ms	13516 KB	Output is correct
33	Correct	168 ms	13516 KB	Output is correct
34	Correct	144 ms	13516 KB	Output is correct
35	Correct	166 ms	13516 KB	Output is correct
36	Correct	147 ms	13516 KB	Output is correct
37	Correct	199 ms	13516 KB	Output is correct
38	Correct	151 ms	13516 KB	Output is correct
39	Correct	169 ms	13516 KB	Output is correct
40	Correct	171 ms	13516 KB	Output is correct
41	Correct	177 ms	13516 KB	Output is correct
42	Correct	238 ms	13516 KB	Output is correct
43	Correct	162 ms	13516 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	13516 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3324'
2	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	428 KB	Output is correct
4	Correct	2 ms	468 KB	Output is correct
5	Correct	2 ms	468 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	3 ms	544 KB	Output is correct
8	Correct	3 ms	628 KB	Output is correct
9	Correct	3 ms	628 KB	Output is correct
10	Correct	3 ms	628 KB	Output is correct
11	Correct	2 ms	628 KB	Output is correct
12	Correct	2 ms	628 KB	Output is correct
13	Correct	2 ms	628 KB	Output is correct
14	Correct	2 ms	628 KB	Output is correct
15	Correct	2 ms	628 KB	Output is correct
16	Correct	2 ms	628 KB	Output is correct
17	Correct	2 ms	628 KB	Output is correct
18	Correct	2 ms	628 KB	Output is correct
19	Correct	2 ms	636 KB	Output is correct
20	Correct	2 ms	636 KB	Output is correct
21	Correct	2 ms	636 KB	Output is correct
22	Correct	2 ms	636 KB	Output is correct
23	Correct	2 ms	636 KB	Output is correct
24	Correct	2 ms	636 KB	Output is correct
25	Correct	2 ms	636 KB	Output is correct
26	Correct	2 ms	636 KB	Output is correct
27	Correct	2 ms	636 KB	Output is correct
28	Correct	2 ms	636 KB	Output is correct
29	Correct	2 ms	636 KB	Output is correct
30	Correct	191 ms	13516 KB	Output is correct
31	Correct	170 ms	13516 KB	Output is correct
32	Correct	136 ms	13516 KB	Output is correct
33	Correct	168 ms	13516 KB	Output is correct
34	Correct	144 ms	13516 KB	Output is correct
35	Correct	166 ms	13516 KB	Output is correct
36	Correct	147 ms	13516 KB	Output is correct
37	Correct	199 ms	13516 KB	Output is correct
38	Correct	151 ms	13516 KB	Output is correct
39	Correct	169 ms	13516 KB	Output is correct
40	Correct	171 ms	13516 KB	Output is correct
41	Correct	177 ms	13516 KB	Output is correct
42	Correct	238 ms	13516 KB	Output is correct
43	Correct	162 ms	13516 KB	Output is correct
44	Incorrect	2 ms	13516 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3324'
45	Halted	0 ms	0 KB	-

Submission #51568

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