| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1077504 |
2024-08-27T07:44:29 Z |
jk_ |
Ancient Books (IOI17_books) |
C++14 |
|
138 ms |
23136 KB |
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
struct cycle { int l, r; };
long long minimum_walk(std::vector<int> p, int s) {
long long d = 0;
int n = p.size();
for (int i = 0; i < n; ++i) {
d += abs(p[i] - i);
}
vector<int> c(p.size(), -1);
vector<cycle> cycles;
int sl=s, sr=s;
for (int i = 0; i < n; ++i) {
if (c[i] != -1) continue;
if (p[i] == i) continue;
int x = i;
int l=x, r=x;
c[x] = cycles.size();
while ((x=p[x]) != i) {
c[x] = cycles.size();
l = min(l, x);
r = max(r, x);
}
if (l <= s && r >= s){
sl = min(l, sl);
sr = max(r, sr);
}
cycles.push_back({l, r});
}
int l=s, r=s; // already covered
int lx=s, rx=s; // free extension
if (c[s] != -1) {
lx = cycles[c[s]].l;
rx = cycles[c[s]].r;
}
while (l > sl || r < sr) {
if (l-1 >= 0 && l-1 >= lx)
--l;
else if (r+1 < n && r+1 <= rx)
++r;
else {
l = max(0, l-1);
r = min(r+1, n-1);
d += 2;
}
if (c[l] != -1) {
lx = min(lx, cycles[c[l]].l);
rx = max(rx, cycles[c[l]].r);
}
if (c[r] != -1) {
lx = min(lx, cycles[c[r]].l);
rx = max(rx, cycles[c[r]].r);
}
}
while (r+1 < n) {
++r;
if (c[r]==-1) continue;
if (cycles[c[r]].l != cycles[c[r]].r) {
d += 2*max(0, r - rx);
rx = max(rx, cycles[c[r]].r);
}
}
while (l-1 >= 0) {
--l;
if (c[l]==-1) continue;
if (cycles[c[l]].l != cycles[c[l]].r) {
d += 2*max(0, lx - l);
lx = min(lx, cycles[c[l]].l);
}
}
return d;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
432 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
432 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
0 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
1 ms |
348 KB |
Output is correct |
| 26 |
Correct |
0 ms |
348 KB |
Output is correct |
| 27 |
Correct |
0 ms |
348 KB |
Output is correct |
| 28 |
Correct |
0 ms |
348 KB |
Output is correct |
| 29 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
432 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
0 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
1 ms |
348 KB |
Output is correct |
| 26 |
Correct |
0 ms |
348 KB |
Output is correct |
| 27 |
Correct |
0 ms |
348 KB |
Output is correct |
| 28 |
Correct |
0 ms |
348 KB |
Output is correct |
| 29 |
Correct |
1 ms |
348 KB |
Output is correct |
| 30 |
Correct |
106 ms |
18772 KB |
Output is correct |
| 31 |
Correct |
102 ms |
18768 KB |
Output is correct |
| 32 |
Correct |
97 ms |
18664 KB |
Output is correct |
| 33 |
Correct |
86 ms |
20948 KB |
Output is correct |
| 34 |
Correct |
81 ms |
20932 KB |
Output is correct |
| 35 |
Correct |
92 ms |
20960 KB |
Output is correct |
| 36 |
Correct |
82 ms |
20936 KB |
Output is correct |
| 37 |
Correct |
138 ms |
19284 KB |
Output is correct |
| 38 |
Correct |
82 ms |
19024 KB |
Output is correct |
| 39 |
Correct |
88 ms |
18772 KB |
Output is correct |
| 40 |
Correct |
126 ms |
18768 KB |
Output is correct |
| 41 |
Correct |
111 ms |
18772 KB |
Output is correct |
| 42 |
Correct |
122 ms |
18792 KB |
Output is correct |
| 43 |
Correct |
94 ms |
20968 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
604 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
348 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
344 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
344 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
432 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
0 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
1 ms |
348 KB |
Output is correct |
| 26 |
Correct |
0 ms |
348 KB |
Output is correct |
| 27 |
Correct |
0 ms |
348 KB |
Output is correct |
| 28 |
Correct |
0 ms |
348 KB |
Output is correct |
| 29 |
Correct |
1 ms |
348 KB |
Output is correct |
| 30 |
Correct |
106 ms |
18772 KB |
Output is correct |
| 31 |
Correct |
102 ms |
18768 KB |
Output is correct |
| 32 |
Correct |
97 ms |
18664 KB |
Output is correct |
| 33 |
Correct |
86 ms |
20948 KB |
Output is correct |
| 34 |
Correct |
81 ms |
20932 KB |
Output is correct |
| 35 |
Correct |
92 ms |
20960 KB |
Output is correct |
| 36 |
Correct |
82 ms |
20936 KB |
Output is correct |
| 37 |
Correct |
138 ms |
19284 KB |
Output is correct |
| 38 |
Correct |
82 ms |
19024 KB |
Output is correct |
| 39 |
Correct |
88 ms |
18772 KB |
Output is correct |
| 40 |
Correct |
126 ms |
18768 KB |
Output is correct |
| 41 |
Correct |
111 ms |
18772 KB |
Output is correct |
| 42 |
Correct |
122 ms |
18792 KB |
Output is correct |
| 43 |
Correct |
94 ms |
20968 KB |
Output is correct |
| 44 |
Correct |
1 ms |
348 KB |
Output is correct |
| 45 |
Correct |
0 ms |
348 KB |
Output is correct |
| 46 |
Correct |
1 ms |
348 KB |
Output is correct |
| 47 |
Correct |
0 ms |
348 KB |
Output is correct |
| 48 |
Correct |
1 ms |
604 KB |
Output is correct |
| 49 |
Correct |
0 ms |
348 KB |
Output is correct |
| 50 |
Correct |
0 ms |
348 KB |
Output is correct |
| 51 |
Correct |
0 ms |
348 KB |
Output is correct |
| 52 |
Correct |
0 ms |
344 KB |
Output is correct |
| 53 |
Correct |
1 ms |
344 KB |
Output is correct |
| 54 |
Correct |
1 ms |
348 KB |
Output is correct |
| 55 |
Correct |
1 ms |
348 KB |
Output is correct |
| 56 |
Correct |
1 ms |
344 KB |
Output is correct |
| 57 |
Correct |
1 ms |
348 KB |
Output is correct |
| 58 |
Correct |
0 ms |
348 KB |
Output is correct |
| 59 |
Correct |
1 ms |
348 KB |
Output is correct |
| 60 |
Correct |
1 ms |
344 KB |
Output is correct |
| 61 |
Correct |
1 ms |
348 KB |
Output is correct |
| 62 |
Correct |
1 ms |
348 KB |
Output is correct |
| 63 |
Correct |
1 ms |
344 KB |
Output is correct |
| 64 |
Correct |
88 ms |
19924 KB |
Output is correct |
| 65 |
Correct |
92 ms |
20068 KB |
Output is correct |
| 66 |
Correct |
86 ms |
19172 KB |
Output is correct |
| 67 |
Correct |
88 ms |
18924 KB |
Output is correct |
| 68 |
Correct |
9 ms |
2256 KB |
Output is correct |
| 69 |
Correct |
12 ms |
2140 KB |
Output is correct |
| 70 |
Correct |
8 ms |
2396 KB |
Output is correct |
| 71 |
Correct |
11 ms |
2396 KB |
Output is correct |
| 72 |
Correct |
11 ms |
2396 KB |
Output is correct |
| 73 |
Correct |
10 ms |
2140 KB |
Output is correct |
| 74 |
Correct |
95 ms |
20956 KB |
Output is correct |
| 75 |
Correct |
78 ms |
21092 KB |
Output is correct |
| 76 |
Correct |
93 ms |
20956 KB |
Output is correct |
| 77 |
Correct |
97 ms |
20964 KB |
Output is correct |
| 78 |
Correct |
92 ms |
23016 KB |
Output is correct |
| 79 |
Correct |
94 ms |
23004 KB |
Output is correct |
| 80 |
Correct |
77 ms |
18672 KB |
Output is correct |
| 81 |
Correct |
91 ms |
23136 KB |
Output is correct |
| 82 |
Correct |
97 ms |
22980 KB |
Output is correct |
| 83 |
Correct |
90 ms |
21104 KB |
Output is correct |
| 84 |
Correct |
85 ms |
20968 KB |
Output is correct |
| 85 |
Correct |
83 ms |
19940 KB |
Output is correct |
| 86 |
Correct |
79 ms |
19392 KB |
Output is correct |
| 87 |
Correct |
87 ms |
21100 KB |
Output is correct |
| 88 |
Correct |
84 ms |
22952 KB |
Output is correct |
| 89 |
Correct |
84 ms |
23128 KB |
Output is correct |
| 90 |
Correct |
78 ms |
19304 KB |
Output is correct |
| 91 |
Correct |
82 ms |
18808 KB |
Output is correct |
| 92 |
Correct |
90 ms |
18772 KB |
Output is correct |
