#include "books.h"
#include <string.h>
using namespace std;
const int N = 1000000;
const int SMALL = 1000;
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
typedef vector<int> vi;
int dd[N];
int dp[SMALL][SMALL];
long long minimum_walk(vi pp, int s) {
int n = pp.size(), i, j;
long long ans;
ans = 0;
for (i = 0; i < n; i++)
if (i < pp[i])
ans += pp[i] - i, dd[i]++, dd[pp[i]]--;
else if (i > pp[i])
ans += i - pp[i], dd[pp[i]]++, dd[i]--;
if (s == 0) {
for (i = 1; i < n - 1; i++)
dd[i] += dd[i - 1];
i = n - 1;
while (i >= 0 && pp[i] == i)
i--;
for (i--; i >= 0; i--)
if (dd[i] == 0)
ans += 2;
} else {
int l_, r_, l, r;
for (i = 0; i < n; i++)
memset(dp[i], 0x3f, n * sizeof *dp[i]);
dp[s][s] = 0;
l_ = r_ = pp[s];
for (i = s; i >= 0; i--) {
l_ = min(l_, pp[i]), r_ = max(r_, pp[i]);
l = l_, r = r_;
for (j = s; j < n; j++) {
l = min(l, pp[j]), r = max(r, pp[j]);
if (i > 0)
dp[i - 1][j] = min(dp[i - 1][j], dp[i][j] + (l >= i));
if (j + 1 < n)
dp[i][j + 1] = min(dp[i][j + 1], dp[i][j] + (r <= j));
}
}
i = 0;
while (i < s && pp[i] == i)
i++;
j = n - 1;
while (j > s && pp[j] == j)
j--;
ans += dp[i][j] * 2;
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 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 |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 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 |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 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 |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 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 |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
0 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
0 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 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 |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 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 |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
0 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
0 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
142 ms |
11996 KB |
Output is correct |
| 31 |
Correct |
144 ms |
12004 KB |
Output is correct |
| 32 |
Correct |
135 ms |
12004 KB |
Output is correct |
| 33 |
Correct |
137 ms |
12100 KB |
Output is correct |
| 34 |
Correct |
155 ms |
11996 KB |
Output is correct |
| 35 |
Correct |
145 ms |
12000 KB |
Output is correct |
| 36 |
Correct |
142 ms |
11972 KB |
Output is correct |
| 37 |
Correct |
157 ms |
11972 KB |
Output is correct |
| 38 |
Correct |
138 ms |
12008 KB |
Output is correct |
| 39 |
Correct |
137 ms |
11992 KB |
Output is correct |
| 40 |
Correct |
149 ms |
12024 KB |
Output is correct |
| 41 |
Correct |
143 ms |
12008 KB |
Output is correct |
| 42 |
Correct |
165 ms |
12012 KB |
Output is correct |
| 43 |
Correct |
150 ms |
12000 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 2 |
Correct |
2 ms |
4172 KB |
Output is correct |
| 3 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4172 KB |
Output is correct |
| 5 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 8 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 9 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4172 KB |
Output is correct |
| 11 |
Correct |
5 ms |
4172 KB |
Output is correct |
| 12 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 13 |
Correct |
5 ms |
4128 KB |
Output is correct |
| 14 |
Correct |
5 ms |
4172 KB |
Output is correct |
| 15 |
Correct |
4 ms |
4300 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 17 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4172 KB |
Output is correct |
| 19 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 20 |
Correct |
4 ms |
4184 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 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 |
0 ms |
204 KB |
Output is correct |
| 8 |
Correct |
1 ms |
204 KB |
Output is correct |
| 9 |
Correct |
1 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 |
1 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
1 ms |
204 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
1 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
1 ms |
204 KB |
Output is correct |
| 22 |
Correct |
0 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
1 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
0 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
1 ms |
204 KB |
Output is correct |
| 30 |
Correct |
142 ms |
11996 KB |
Output is correct |
| 31 |
Correct |
144 ms |
12004 KB |
Output is correct |
| 32 |
Correct |
135 ms |
12004 KB |
Output is correct |
| 33 |
Correct |
137 ms |
12100 KB |
Output is correct |
| 34 |
Correct |
155 ms |
11996 KB |
Output is correct |
| 35 |
Correct |
145 ms |
12000 KB |
Output is correct |
| 36 |
Correct |
142 ms |
11972 KB |
Output is correct |
| 37 |
Correct |
157 ms |
11972 KB |
Output is correct |
| 38 |
Correct |
138 ms |
12008 KB |
Output is correct |
| 39 |
Correct |
137 ms |
11992 KB |
Output is correct |
| 40 |
Correct |
149 ms |
12024 KB |
Output is correct |
| 41 |
Correct |
143 ms |
12008 KB |
Output is correct |
| 42 |
Correct |
165 ms |
12012 KB |
Output is correct |
| 43 |
Correct |
150 ms |
12000 KB |
Output is correct |
| 44 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 45 |
Correct |
2 ms |
4172 KB |
Output is correct |
| 46 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 47 |
Correct |
3 ms |
4172 KB |
Output is correct |
| 48 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 49 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 50 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 51 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 52 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 53 |
Correct |
3 ms |
4172 KB |
Output is correct |
| 54 |
Correct |
5 ms |
4172 KB |
Output is correct |
| 55 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 56 |
Correct |
5 ms |
4128 KB |
Output is correct |
| 57 |
Correct |
5 ms |
4172 KB |
Output is correct |
| 58 |
Correct |
4 ms |
4300 KB |
Output is correct |
| 59 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 60 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 61 |
Correct |
3 ms |
4172 KB |
Output is correct |
| 62 |
Correct |
4 ms |
4172 KB |
Output is correct |
| 63 |
Correct |
4 ms |
4184 KB |
Output is correct |
| 64 |
Runtime error |
304 ms |
38828 KB |
Execution killed with signal 11 |
| 65 |
Halted |
0 ms |
0 KB |
- |
