Submission #137697

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
137697	2019-07-28T08:40:49 Z	random0029	Ancient Books (IOI17_books)	C++14	50 / 100	218 ms	27012 KB

books

// ItnoE
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 1000006;
int n, M[N], A[N];
int64_t minimum_walk(vector < int > P, int st)
{
	n = (int)P.size();
	ll SM = 0;
	for (int i = 0; i < n; i ++)
		SM += abs(P[i] - i);
	vector < pair < int , int > > cyc;
	for (int i = 0; i < n; i ++)
		if (!M[i] && P[i] != i)
		{
			int v = i;
			int Mx = -N * 2, Mn = N * 2;
			while (!M[v])
			{
				M[v] = 1;
				Mn = min(Mn, v);
				Mx = max(Mx, v);
				v = P[v];
			}
			A[Mn] = max(A[Mn], Mx);
			cyc.push_back({Mn, Mx});
		}
	if (SM == 0)
		return (SM);
	//bool fail = 1;
	int Mx = 0, last = -1;
	vector < pair < int , int > > vec;
	for (int i = 0; i < n; i ++)
	{
		Mx = max({Mx, A[i], i});
		if (P[i] != i && last == -1)
			last = i;
		if (P[i] == i)
			continue;
		if (Mx == i)
			vec.push_back({last, Mx}), last = -1;
		//if (i <= st && st <= Mx)
			//fail = 0;
	}
	if (P[st] == st)
	{
		int le = st, ri = st;
		while (le >= 0 && P[le] == le)
			le --;
		while (ri < n && P[ri] == ri)
			ri ++;
		if (le == -1) le ++;
		if (ri == n) ri --;
		SM += (ri - le) * 2;
	}
	if (st != 0 && P[st] != st)
	{
		pair < int , int > X;
		for (auto Y : vec)
			if (Y.first <= st && st <= Y.second)
				X = Y;
		SM += min(st - X.first, X.second - st);
	}
	for (int i = 1; i < (int)vec.size(); i ++)
	{
		SM += (vec[i].first - vec[i - 1].second) * 2;
		assert(vec[i].first > vec[i - 1].second);
	}
	return (SM);
}

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	376 KB	Output is correct
4	Correct	2 ms	372 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 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	376 KB	Output is correct
4	Correct	2 ms	372 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	3 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	2 ms	376 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	376 KB	Output is correct
4	Correct	2 ms	372 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	3 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	218 ms	18308 KB	Output is correct
31	Correct	215 ms	18228 KB	Output is correct
32	Correct	143 ms	14412 KB	Output is correct
33	Correct	163 ms	26740 KB	Output is correct
34	Correct	163 ms	26700 KB	Output is correct
35	Correct	166 ms	27012 KB	Output is correct
36	Correct	161 ms	25064 KB	Output is correct
37	Correct	157 ms	22616 KB	Output is correct
38	Correct	160 ms	21476 KB	Output is correct
39	Correct	161 ms	21240 KB	Output is correct
40	Correct	175 ms	19092 KB	Output is correct
41	Correct	206 ms	18556 KB	Output is correct
42	Correct	187 ms	18488 KB	Output is correct
43	Correct	166 ms	24228 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	376 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3169'
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	376 KB	Output is correct
4	Correct	2 ms	372 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	3 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	218 ms	18308 KB	Output is correct
31	Correct	215 ms	18228 KB	Output is correct
32	Correct	143 ms	14412 KB	Output is correct
33	Correct	163 ms	26740 KB	Output is correct
34	Correct	163 ms	26700 KB	Output is correct
35	Correct	166 ms	27012 KB	Output is correct
36	Correct	161 ms	25064 KB	Output is correct
37	Correct	157 ms	22616 KB	Output is correct
38	Correct	160 ms	21476 KB	Output is correct
39	Correct	161 ms	21240 KB	Output is correct
40	Correct	175 ms	19092 KB	Output is correct
41	Correct	206 ms	18556 KB	Output is correct
42	Correct	187 ms	18488 KB	Output is correct
43	Correct	166 ms	24228 KB	Output is correct
44	Incorrect	2 ms	376 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3169'
45	Halted	0 ms	0 KB	-

Submission #137697

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