// M
#include<bits/stdc++.h>
#include "books.h"
using namespace std;
typedef long long ll;
const int N = 1000006, LG = 20;
int n, st, A[N], mnq[LG][N], mxq[LG][N], Log[N];
map < pair < int , int > , pair < int , int > > MP;
inline int GetMin(int l, int r)
{
int lg = Log[r - l];
return min(mnq[lg][l], mnq[lg][r - (1 << lg)]);
}
inline int GetMax(int l, int r)
{
int lg = Log[r - l];
return max(mxq[lg][l], mxq[lg][r - (1 << lg)]);
}
inline pair < int , int > Extend(pair < int , int > nw)
{
while (true)
{
pair < int , int > tb;
tb.first = min(nw.first, GetMin(nw.first, nw.second + 1));
tb.second = max(nw.second, GetMax(nw.first, nw.second + 1));
if (tb == nw)
break;
nw = tb;
}
return nw;
}
long long minimum_walk(vector < int > _A, int _st)
{
n = (int)_A.size();
st = _st + 1;
for (int i = 1; i <= n; i ++)
A[i] = _A[i - 1] + 1;
for (int i = 2; i <= n; i ++)
Log[i] = Log[i >> 1] + 1;
for (int i = 1; i <= n; i ++)
mnq[0][i] = mxq[0][i] = A[i];
for (int j = 1; j < LG; j ++)
for (int i = 1; i + (1 << j) <= n + 1; i ++)
{
mnq[j][i] = min(mnq[j - 1][i], mnq[j - 1][i + (1 << (j - 1))]);
mxq[j][i] = max(mxq[j - 1][i], mxq[j - 1][i + (1 << (j - 1))]);
}
ll SM = 0;
for (int i = 1; i <= n; i ++)
SM += abs(A[i] - i);
int Mn = 1, Mx = n;
while (Mn < st && A[Mn] == Mn)
Mn ++;
while (Mx > st && A[Mx] == Mx)
Mx --;
pair < int , int > nw = {st, st};
nw = Extend(nw);
while (nw != make_pair(Mn, Mx))
{
int cle = 0, cri = 0;
pair < int , int > gle = nw, gri = nw;
while (gle.first > Mn && gle.second == nw.second)
cle ++, gle = Extend({gle.first - 1, gle.second});
while (gri.second < Mx && gri.first == nw.first)
cri ++, gri = Extend({gri.first, gri.second + 1});
if (gle == gri)
SM += min(cle, cri) * 2, nw = gle;
else
SM += (cle + cri) * 2, nw = make_pair(Mn, Mx);
}
return SM;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
0 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
0 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
512 KB |
Output is correct |
20 |
Correct |
1 ms |
512 KB |
Output is correct |
21 |
Correct |
1 ms |
512 KB |
Output is correct |
22 |
Correct |
1 ms |
640 KB |
Output is correct |
23 |
Correct |
1 ms |
640 KB |
Output is correct |
24 |
Correct |
1 ms |
640 KB |
Output is correct |
25 |
Correct |
1 ms |
640 KB |
Output is correct |
26 |
Correct |
1 ms |
512 KB |
Output is correct |
27 |
Correct |
1 ms |
640 KB |
Output is correct |
28 |
Correct |
1 ms |
640 KB |
Output is correct |
29 |
Correct |
1 ms |
512 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
0 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
512 KB |
Output is correct |
20 |
Correct |
1 ms |
512 KB |
Output is correct |
21 |
Correct |
1 ms |
512 KB |
Output is correct |
22 |
Correct |
1 ms |
640 KB |
Output is correct |
23 |
Correct |
1 ms |
640 KB |
Output is correct |
24 |
Correct |
1 ms |
640 KB |
Output is correct |
25 |
Correct |
1 ms |
640 KB |
Output is correct |
26 |
Correct |
1 ms |
512 KB |
Output is correct |
27 |
Correct |
1 ms |
640 KB |
Output is correct |
28 |
Correct |
1 ms |
640 KB |
Output is correct |
29 |
Correct |
1 ms |
512 KB |
Output is correct |
30 |
Correct |
278 ms |
171164 KB |
Output is correct |
31 |
Correct |
282 ms |
171128 KB |
Output is correct |
32 |
Correct |
260 ms |
171128 KB |
Output is correct |
33 |
Correct |
278 ms |
171256 KB |
Output is correct |
34 |
Correct |
271 ms |
171256 KB |
Output is correct |
35 |
Correct |
275 ms |
171384 KB |
Output is correct |
36 |
Correct |
269 ms |
171384 KB |
Output is correct |
37 |
Correct |
266 ms |
171388 KB |
Output is correct |
38 |
Correct |
267 ms |
171204 KB |
Output is correct |
39 |
Correct |
266 ms |
171128 KB |
Output is correct |
40 |
Correct |
278 ms |
171256 KB |
Output is correct |
41 |
Correct |
281 ms |
171252 KB |
Output is correct |
42 |
Correct |
281 ms |
171256 KB |
Output is correct |
43 |
Correct |
262 ms |
171256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
640 KB |
Output is correct |
2 |
Correct |
1 ms |
640 KB |
Output is correct |
3 |
Correct |
1 ms |
632 KB |
Output is correct |
4 |
Correct |
1 ms |
512 KB |
Output is correct |
5 |
Correct |
1 ms |
640 KB |
Output is correct |
6 |
Correct |
1 ms |
640 KB |
Output is correct |
7 |
Correct |
1 ms |
640 KB |
Output is correct |
8 |
Correct |
1 ms |
640 KB |
Output is correct |
9 |
Correct |
1 ms |
512 KB |
Output is correct |
10 |
Correct |
1 ms |
512 KB |
Output is correct |
11 |
Correct |
1 ms |
640 KB |
Output is correct |
12 |
Correct |
1 ms |
640 KB |
Output is correct |
13 |
Correct |
1 ms |
640 KB |
Output is correct |
14 |
Correct |
1 ms |
640 KB |
Output is correct |
15 |
Correct |
1 ms |
512 KB |
Output is correct |
16 |
Correct |
1 ms |
640 KB |
Output is correct |
17 |
Correct |
1 ms |
640 KB |
Output is correct |
18 |
Correct |
1 ms |
512 KB |
Output is correct |
19 |
Correct |
1 ms |
640 KB |
Output is correct |
20 |
Correct |
1 ms |
512 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Correct |
0 ms |
384 KB |
Output is correct |
9 |
Correct |
0 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
0 ms |
384 KB |
Output is correct |
17 |
Correct |
0 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
512 KB |
Output is correct |
20 |
Correct |
1 ms |
512 KB |
Output is correct |
21 |
Correct |
1 ms |
512 KB |
Output is correct |
22 |
Correct |
1 ms |
640 KB |
Output is correct |
23 |
Correct |
1 ms |
640 KB |
Output is correct |
24 |
Correct |
1 ms |
640 KB |
Output is correct |
25 |
Correct |
1 ms |
640 KB |
Output is correct |
26 |
Correct |
1 ms |
512 KB |
Output is correct |
27 |
Correct |
1 ms |
640 KB |
Output is correct |
28 |
Correct |
1 ms |
640 KB |
Output is correct |
29 |
Correct |
1 ms |
512 KB |
Output is correct |
30 |
Correct |
278 ms |
171164 KB |
Output is correct |
31 |
Correct |
282 ms |
171128 KB |
Output is correct |
32 |
Correct |
260 ms |
171128 KB |
Output is correct |
33 |
Correct |
278 ms |
171256 KB |
Output is correct |
34 |
Correct |
271 ms |
171256 KB |
Output is correct |
35 |
Correct |
275 ms |
171384 KB |
Output is correct |
36 |
Correct |
269 ms |
171384 KB |
Output is correct |
37 |
Correct |
266 ms |
171388 KB |
Output is correct |
38 |
Correct |
267 ms |
171204 KB |
Output is correct |
39 |
Correct |
266 ms |
171128 KB |
Output is correct |
40 |
Correct |
278 ms |
171256 KB |
Output is correct |
41 |
Correct |
281 ms |
171252 KB |
Output is correct |
42 |
Correct |
281 ms |
171256 KB |
Output is correct |
43 |
Correct |
262 ms |
171256 KB |
Output is correct |
44 |
Correct |
1 ms |
640 KB |
Output is correct |
45 |
Correct |
1 ms |
640 KB |
Output is correct |
46 |
Correct |
1 ms |
632 KB |
Output is correct |
47 |
Correct |
1 ms |
512 KB |
Output is correct |
48 |
Correct |
1 ms |
640 KB |
Output is correct |
49 |
Correct |
1 ms |
640 KB |
Output is correct |
50 |
Correct |
1 ms |
640 KB |
Output is correct |
51 |
Correct |
1 ms |
640 KB |
Output is correct |
52 |
Correct |
1 ms |
512 KB |
Output is correct |
53 |
Correct |
1 ms |
512 KB |
Output is correct |
54 |
Correct |
1 ms |
640 KB |
Output is correct |
55 |
Correct |
1 ms |
640 KB |
Output is correct |
56 |
Correct |
1 ms |
640 KB |
Output is correct |
57 |
Correct |
1 ms |
640 KB |
Output is correct |
58 |
Correct |
1 ms |
512 KB |
Output is correct |
59 |
Correct |
1 ms |
640 KB |
Output is correct |
60 |
Correct |
1 ms |
640 KB |
Output is correct |
61 |
Correct |
1 ms |
512 KB |
Output is correct |
62 |
Correct |
1 ms |
640 KB |
Output is correct |
63 |
Correct |
1 ms |
512 KB |
Output is correct |
64 |
Correct |
259 ms |
171212 KB |
Output is correct |
65 |
Correct |
265 ms |
171200 KB |
Output is correct |
66 |
Correct |
261 ms |
171128 KB |
Output is correct |
67 |
Correct |
266 ms |
171256 KB |
Output is correct |
68 |
Correct |
25 ms |
15096 KB |
Output is correct |
69 |
Correct |
25 ms |
15096 KB |
Output is correct |
70 |
Correct |
24 ms |
15104 KB |
Output is correct |
71 |
Correct |
24 ms |
15104 KB |
Output is correct |
72 |
Correct |
24 ms |
15104 KB |
Output is correct |
73 |
Correct |
25 ms |
15224 KB |
Output is correct |
74 |
Correct |
283 ms |
171272 KB |
Output is correct |
75 |
Correct |
270 ms |
171256 KB |
Output is correct |
76 |
Correct |
263 ms |
171256 KB |
Output is correct |
77 |
Correct |
266 ms |
171336 KB |
Output is correct |
78 |
Correct |
264 ms |
171256 KB |
Output is correct |
79 |
Correct |
261 ms |
171160 KB |
Output is correct |
80 |
Correct |
257 ms |
171172 KB |
Output is correct |
81 |
Correct |
273 ms |
171512 KB |
Output is correct |
82 |
Correct |
267 ms |
171128 KB |
Output is correct |
83 |
Correct |
273 ms |
171256 KB |
Output is correct |
84 |
Correct |
267 ms |
171384 KB |
Output is correct |
85 |
Correct |
259 ms |
171256 KB |
Output is correct |
86 |
Correct |
265 ms |
171256 KB |
Output is correct |
87 |
Correct |
276 ms |
171128 KB |
Output is correct |
88 |
Correct |
277 ms |
171208 KB |
Output is correct |
89 |
Correct |
271 ms |
171204 KB |
Output is correct |
90 |
Correct |
272 ms |
171128 KB |
Output is correct |
91 |
Correct |
264 ms |
171256 KB |
Output is correct |
92 |
Correct |
268 ms |
171128 KB |
Output is correct |