#include "books.h"
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const int maxn = 1e6 + 5;
vector<int> c(maxn, -1), L(maxn, maxn), R(maxn, -1);
void extend_for_free(int &l, int &r)
{
int tl = min({l, L[c[l]], L[c[r]]}), tr = max({r, R[c[l]], R[c[r]]});
while (tl < l || r < tr)
{
if (tl < l)
{
l--;
tl = min(tl, L[c[l]]);
tr = max(tr, R[c[l]]);
}
if (r < tr)
{
r++;
tl = min(tl, L[c[r]]);
tr = max(tr, R[c[r]]);
}
}
}
int calculate(int l, int r, int tl, int tr)
{
int ans = 0;
while (tl < l || r < tr)
{
extend_for_free(l, r);
bool left = false, right = false;
int cll = l, clr = r, crl = l, crr = r, costl = 0, costr = 0;
while (tl < cll)
{
cll--, costl += 2;
extend_for_free(cll, clr);
if (clr > r)
{
left = true;
break;
}
}
while (tr > crr)
{
crr++, costr += 2;
extend_for_free(crl, crr);
if (crl < l)
{
right = true;
break;
}
}
if (left && right) ans += min(costl, costr);
else ans += costl + costr;
l = min(cll, crl), r = max(crl, crr);
}
return ans;
}
ll minimum_walk(vector<int> p, int s)
{
int n = p.size(), num = -1, l = s, r = s;
ll ans = 0;
for (int i = 0; i < n; i++)
{
ans += abs(p[i] - i);
if (c[i] != -1) continue;
num++, L[num] = R[num] = i, c[i] = num;
int j = p[i];
while (j != i)
{
L[num] = min(L[num], j), R[num] = max(R[num], j), c[j] = num;
j = p[j];
}
if (i != p[i]) l = min(l, L[num]), r = max(r, R[num]);
}
ans += calculate(s, s, l, r);
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 2 |
Correct |
6 ms |
11928 KB |
Output is correct |
| 3 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 4 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 5 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 6 |
Correct |
6 ms |
11952 KB |
Output is correct |
| 7 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 8 |
Correct |
6 ms |
12040 KB |
Output is correct |
| 9 |
Correct |
7 ms |
11972 KB |
Output is correct |
| 10 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 11 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 12 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 13 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 14 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 15 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 16 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 17 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 18 |
Correct |
6 ms |
12028 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 2 |
Correct |
6 ms |
11928 KB |
Output is correct |
| 3 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 4 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 5 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 6 |
Correct |
6 ms |
11952 KB |
Output is correct |
| 7 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 8 |
Correct |
6 ms |
12040 KB |
Output is correct |
| 9 |
Correct |
7 ms |
11972 KB |
Output is correct |
| 10 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 11 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 12 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 13 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 14 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 15 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 16 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 17 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 18 |
Correct |
6 ms |
12028 KB |
Output is correct |
| 19 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12048 KB |
Output is correct |
| 21 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 22 |
Correct |
8 ms |
11936 KB |
Output is correct |
| 23 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 24 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 25 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 26 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 27 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 28 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 29 |
Correct |
7 ms |
11980 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 2 |
Correct |
6 ms |
11928 KB |
Output is correct |
| 3 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 4 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 5 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 6 |
Correct |
6 ms |
11952 KB |
Output is correct |
| 7 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 8 |
Correct |
6 ms |
12040 KB |
Output is correct |
| 9 |
Correct |
7 ms |
11972 KB |
Output is correct |
| 10 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 11 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 12 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 13 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 14 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 15 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 16 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 17 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 18 |
Correct |
6 ms |
12028 KB |
Output is correct |
| 19 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12048 KB |
Output is correct |
| 21 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 22 |
Correct |
8 ms |
11936 KB |
Output is correct |
| 23 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 24 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 25 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 26 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 27 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 28 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 29 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 30 |
Correct |
197 ms |
19800 KB |
Output is correct |
| 31 |
Correct |
182 ms |
19816 KB |
Output is correct |
| 32 |
Correct |
126 ms |
19856 KB |
Output is correct |
| 33 |
Correct |
139 ms |
19780 KB |
Output is correct |
| 34 |
Correct |
140 ms |
19780 KB |
Output is correct |
| 35 |
Correct |
142 ms |
19792 KB |
Output is correct |
| 36 |
Correct |
136 ms |
19776 KB |
Output is correct |
| 37 |
Correct |
134 ms |
19788 KB |
Output is correct |
| 38 |
Correct |
133 ms |
19792 KB |
Output is correct |
| 39 |
Correct |
137 ms |
19780 KB |
Output is correct |
| 40 |
Correct |
145 ms |
19908 KB |
Output is correct |
| 41 |
Correct |
157 ms |
19788 KB |
Output is correct |
| 42 |
Correct |
148 ms |
19796 KB |
Output is correct |
| 43 |
Correct |
135 ms |
19780 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 2 |
Correct |
8 ms |
11980 KB |
Output is correct |
| 3 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 4 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 5 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 6 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 7 |
Correct |
7 ms |
12052 KB |
Output is correct |
| 8 |
Correct |
7 ms |
11972 KB |
Output is correct |
| 9 |
Correct |
7 ms |
12052 KB |
Output is correct |
| 10 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 11 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 12 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 13 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 14 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 15 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 16 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 17 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 18 |
Correct |
7 ms |
12052 KB |
Output is correct |
| 19 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 20 |
Correct |
7 ms |
11980 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 2 |
Correct |
6 ms |
11928 KB |
Output is correct |
| 3 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 4 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 5 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 6 |
Correct |
6 ms |
11952 KB |
Output is correct |
| 7 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 8 |
Correct |
6 ms |
12040 KB |
Output is correct |
| 9 |
Correct |
7 ms |
11972 KB |
Output is correct |
| 10 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 11 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 12 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 13 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 14 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 15 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 16 |
Correct |
6 ms |
11980 KB |
Output is correct |
| 17 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 18 |
Correct |
6 ms |
12028 KB |
Output is correct |
| 19 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 20 |
Correct |
6 ms |
12048 KB |
Output is correct |
| 21 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 22 |
Correct |
8 ms |
11936 KB |
Output is correct |
| 23 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 24 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 25 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 26 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 27 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 28 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 29 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 30 |
Correct |
197 ms |
19800 KB |
Output is correct |
| 31 |
Correct |
182 ms |
19816 KB |
Output is correct |
| 32 |
Correct |
126 ms |
19856 KB |
Output is correct |
| 33 |
Correct |
139 ms |
19780 KB |
Output is correct |
| 34 |
Correct |
140 ms |
19780 KB |
Output is correct |
| 35 |
Correct |
142 ms |
19792 KB |
Output is correct |
| 36 |
Correct |
136 ms |
19776 KB |
Output is correct |
| 37 |
Correct |
134 ms |
19788 KB |
Output is correct |
| 38 |
Correct |
133 ms |
19792 KB |
Output is correct |
| 39 |
Correct |
137 ms |
19780 KB |
Output is correct |
| 40 |
Correct |
145 ms |
19908 KB |
Output is correct |
| 41 |
Correct |
157 ms |
19788 KB |
Output is correct |
| 42 |
Correct |
148 ms |
19796 KB |
Output is correct |
| 43 |
Correct |
135 ms |
19780 KB |
Output is correct |
| 44 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 45 |
Correct |
8 ms |
11980 KB |
Output is correct |
| 46 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 47 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 48 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 49 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 50 |
Correct |
7 ms |
12052 KB |
Output is correct |
| 51 |
Correct |
7 ms |
11972 KB |
Output is correct |
| 52 |
Correct |
7 ms |
12052 KB |
Output is correct |
| 53 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 54 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 55 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 56 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 57 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 58 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 59 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 60 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 61 |
Correct |
7 ms |
12052 KB |
Output is correct |
| 62 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 63 |
Correct |
7 ms |
11980 KB |
Output is correct |
| 64 |
Correct |
135 ms |
26568 KB |
Output is correct |
| 65 |
Correct |
137 ms |
26560 KB |
Output is correct |
| 66 |
Correct |
140 ms |
26560 KB |
Output is correct |
| 67 |
Correct |
148 ms |
26564 KB |
Output is correct |
| 68 |
Correct |
19 ms |
13388 KB |
Output is correct |
| 69 |
Correct |
20 ms |
13404 KB |
Output is correct |
| 70 |
Correct |
19 ms |
13396 KB |
Output is correct |
| 71 |
Correct |
20 ms |
13400 KB |
Output is correct |
| 72 |
Correct |
18 ms |
13320 KB |
Output is correct |
| 73 |
Correct |
20 ms |
13316 KB |
Output is correct |
| 74 |
Correct |
138 ms |
26564 KB |
Output is correct |
| 75 |
Correct |
142 ms |
26564 KB |
Output is correct |
| 76 |
Correct |
141 ms |
26564 KB |
Output is correct |
| 77 |
Correct |
137 ms |
26564 KB |
Output is correct |
| 78 |
Correct |
137 ms |
26556 KB |
Output is correct |
| 79 |
Correct |
141 ms |
26688 KB |
Output is correct |
| 80 |
Correct |
129 ms |
26560 KB |
Output is correct |
| 81 |
Correct |
143 ms |
26564 KB |
Output is correct |
| 82 |
Correct |
142 ms |
26564 KB |
Output is correct |
| 83 |
Correct |
145 ms |
26560 KB |
Output is correct |
| 84 |
Correct |
140 ms |
26564 KB |
Output is correct |
| 85 |
Correct |
140 ms |
26564 KB |
Output is correct |
| 86 |
Correct |
140 ms |
26688 KB |
Output is correct |
| 87 |
Correct |
148 ms |
26748 KB |
Output is correct |
| 88 |
Correct |
146 ms |
26564 KB |
Output is correct |
| 89 |
Correct |
143 ms |
26564 KB |
Output is correct |
| 90 |
Correct |
137 ms |
26684 KB |
Output is correct |
| 91 |
Correct |
140 ms |
26816 KB |
Output is correct |
| 92 |
Correct |
140 ms |
26556 KB |
Output is correct |
