#include <bits/stdc++.h>
using namespace std;
const int N = 1000000;
int first[N], last[N], cycles[N];
bool visited[N];
long long minimum_walk(vector<int> perm, int start) {
int n = perm.size();
long long ans = 0;
int low = start, high = start;
for (int i = 0; i < n; ++i) {
ans += abs(perm[i] - i);
if (!visited[i]) {
int j = i, k = i;
while (!visited[j]) {
visited[j] = true;
k = max(k, j);
j = perm[j];
}
do {
first[j] = i, last[j] = k;
j = perm[j];
} while (j != i);
if (i != k) {
low = min(low, i), high = max(high, k);
++cycles[i], --cycles[k];
}
}
}
partial_sum(cycles, cycles + n, cycles);
ans += 2 * count(cycles + low, cycles + high, 0);
bool init = false;
low = high = start;
while (cycles[high] > 0) {
int cost_h = 0, ptr_h = high, new_high = high;
int cost_l = 0, ptr_l = low, new_low = low;
if (init) {
while (first[ptr_h] >= low) {
new_high = max(new_high, last[ptr_h]);
if (ptr_h == new_high) {
cost_h += 2;
++new_high;
}
++ptr_h;
}
while (last[ptr_l] <= high) {
new_low = min(new_low, first[ptr_l]);
if (ptr_l == new_low) {
cost_l += 2;
--new_low;
}
--ptr_l;
}
}
ans += min(cost_h, cost_l);
while (new_low <= ptr_l || ptr_h <= new_high) {
int i = new_low <= ptr_l ? ptr_l-- : ptr_h++;
new_low = min(new_low, first[i]);
new_high = max(new_high, last[i]);
}
low = new_low, high = new_high, init = true;
}
return ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
246 ms |
20716 KB |
Output is correct |
| 31 |
Correct |
256 ms |
20712 KB |
Output is correct |
| 32 |
Correct |
130 ms |
20716 KB |
Output is correct |
| 33 |
Correct |
163 ms |
20712 KB |
Output is correct |
| 34 |
Correct |
132 ms |
20740 KB |
Output is correct |
| 35 |
Correct |
157 ms |
20712 KB |
Output is correct |
| 36 |
Correct |
144 ms |
20716 KB |
Output is correct |
| 37 |
Correct |
132 ms |
20724 KB |
Output is correct |
| 38 |
Correct |
137 ms |
20724 KB |
Output is correct |
| 39 |
Correct |
143 ms |
20728 KB |
Output is correct |
| 40 |
Correct |
141 ms |
20728 KB |
Output is correct |
| 41 |
Correct |
176 ms |
20732 KB |
Output is correct |
| 42 |
Correct |
208 ms |
20720 KB |
Output is correct |
| 43 |
Correct |
136 ms |
20712 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
1 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Correct |
1 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
304 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
1 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
246 ms |
20716 KB |
Output is correct |
| 31 |
Correct |
256 ms |
20712 KB |
Output is correct |
| 32 |
Correct |
130 ms |
20716 KB |
Output is correct |
| 33 |
Correct |
163 ms |
20712 KB |
Output is correct |
| 34 |
Correct |
132 ms |
20740 KB |
Output is correct |
| 35 |
Correct |
157 ms |
20712 KB |
Output is correct |
| 36 |
Correct |
144 ms |
20716 KB |
Output is correct |
| 37 |
Correct |
132 ms |
20724 KB |
Output is correct |
| 38 |
Correct |
137 ms |
20724 KB |
Output is correct |
| 39 |
Correct |
143 ms |
20728 KB |
Output is correct |
| 40 |
Correct |
141 ms |
20728 KB |
Output is correct |
| 41 |
Correct |
176 ms |
20732 KB |
Output is correct |
| 42 |
Correct |
208 ms |
20720 KB |
Output is correct |
| 43 |
Correct |
136 ms |
20712 KB |
Output is correct |
| 44 |
Correct |
1 ms |
332 KB |
Output is correct |
| 45 |
Correct |
1 ms |
332 KB |
Output is correct |
| 46 |
Correct |
1 ms |
332 KB |
Output is correct |
| 47 |
Correct |
1 ms |
332 KB |
Output is correct |
| 48 |
Correct |
1 ms |
332 KB |
Output is correct |
| 49 |
Correct |
1 ms |
304 KB |
Output is correct |
| 50 |
Correct |
1 ms |
332 KB |
Output is correct |
| 51 |
Correct |
1 ms |
332 KB |
Output is correct |
| 52 |
Correct |
1 ms |
332 KB |
Output is correct |
| 53 |
Correct |
1 ms |
332 KB |
Output is correct |
| 54 |
Correct |
1 ms |
332 KB |
Output is correct |
| 55 |
Correct |
1 ms |
332 KB |
Output is correct |
| 56 |
Correct |
1 ms |
332 KB |
Output is correct |
| 57 |
Correct |
1 ms |
332 KB |
Output is correct |
| 58 |
Correct |
1 ms |
332 KB |
Output is correct |
| 59 |
Correct |
1 ms |
332 KB |
Output is correct |
| 60 |
Correct |
1 ms |
332 KB |
Output is correct |
| 61 |
Correct |
1 ms |
332 KB |
Output is correct |
| 62 |
Correct |
1 ms |
332 KB |
Output is correct |
| 63 |
Correct |
1 ms |
332 KB |
Output is correct |
| 64 |
Correct |
135 ms |
27488 KB |
Output is correct |
| 65 |
Correct |
139 ms |
27464 KB |
Output is correct |
| 66 |
Correct |
137 ms |
27480 KB |
Output is correct |
| 67 |
Correct |
137 ms |
27492 KB |
Output is correct |
| 68 |
Correct |
14 ms |
2892 KB |
Output is correct |
| 69 |
Correct |
19 ms |
2892 KB |
Output is correct |
| 70 |
Correct |
18 ms |
2892 KB |
Output is correct |
| 71 |
Correct |
14 ms |
2936 KB |
Output is correct |
| 72 |
Correct |
13 ms |
2892 KB |
Output is correct |
| 73 |
Correct |
14 ms |
2944 KB |
Output is correct |
| 74 |
Correct |
135 ms |
27496 KB |
Output is correct |
| 75 |
Correct |
137 ms |
27460 KB |
Output is correct |
| 76 |
Correct |
141 ms |
27484 KB |
Output is correct |
| 77 |
Correct |
142 ms |
27460 KB |
Output is correct |
| 78 |
Correct |
142 ms |
27492 KB |
Output is correct |
| 79 |
Correct |
138 ms |
27488 KB |
Output is correct |
| 80 |
Correct |
137 ms |
27484 KB |
Output is correct |
| 81 |
Correct |
134 ms |
27496 KB |
Output is correct |
| 82 |
Correct |
139 ms |
27720 KB |
Output is correct |
| 83 |
Correct |
160 ms |
27596 KB |
Output is correct |
| 84 |
Correct |
142 ms |
27496 KB |
Output is correct |
| 85 |
Correct |
137 ms |
27568 KB |
Output is correct |
| 86 |
Correct |
139 ms |
27512 KB |
Output is correct |
| 87 |
Correct |
141 ms |
27480 KB |
Output is correct |
| 88 |
Correct |
143 ms |
27592 KB |
Output is correct |
| 89 |
Correct |
142 ms |
27568 KB |
Output is correct |
| 90 |
Correct |
142 ms |
27492 KB |
Output is correct |
| 91 |
Correct |
139 ms |
27496 KB |
Output is correct |
| 92 |
Correct |
144 ms |
27628 KB |
Output is correct |
