#include <bits/stdc++.h>
#include "books.h"
using namespace std;
long long minimum_walk(vector<int> p, int s) {
int n = p.size();
int l = n, r = -1;
long long ans = 0;
for (int i = 0; i < n; ++i) {
if (i != p[i]) {
ans += abs(i - p[i]);
l = min(l, i);
r = max(r, i);
}
}
int cur_l = s, cur_r = s;
queue<int> q;
q.push(s);
while (true) {
while (!q.empty()) {
int x = q.front();
q.pop();
while (cur_l > p[x]) {
q.push(--cur_l);
}
while (cur_r < p[x]) {
q.push(++cur_r);
}
}
int new_l = cur_l, new_r = cur_r;
int cost_l = 0, cost_r = 0;
bool found_l = false, found_r = false;
while (new_l > l && !found_l) {
q.push(--new_l);
++cost_l;
while (!q.empty()) {
int x = q.front();
q.pop();
if (p[x] > s) {
found_l = true;
}
while (new_l > p[x]) {
q.push(--new_l);
}
}
}
while (new_r < r && !found_r) {
q.push(++new_r);
++cost_r;
while (!q.empty()) {
int x = q.front();
q.pop();
if (p[x] < s) {
found_r = true;
}
while (new_r < p[x]) {
q.push(++new_r);
}
}
}
if (found_l && found_r) {
ans += min(cost_l, cost_r) << 1;
while (cur_l > new_l) {
q.push(--cur_l);
}
while (cur_r < new_r) {
q.push(++cur_r);
}
} else {
ans += cost_l + cost_r << 1;
break;
}
}
return ans;
}
Compilation message
books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:71:21: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
ans += cost_l + cost_r << 1;
~~~~~~~^~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
348 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
256 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
2 ms |
252 KB |
Output is correct |
18 |
Correct |
2 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
348 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
256 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
2 ms |
252 KB |
Output is correct |
18 |
Correct |
2 ms |
348 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
256 KB |
Output is correct |
24 |
Correct |
2 ms |
348 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
256 KB |
Output is correct |
27 |
Correct |
2 ms |
256 KB |
Output is correct |
28 |
Correct |
2 ms |
256 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
348 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
256 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
2 ms |
252 KB |
Output is correct |
18 |
Correct |
2 ms |
348 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
256 KB |
Output is correct |
24 |
Correct |
2 ms |
348 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
256 KB |
Output is correct |
27 |
Correct |
2 ms |
256 KB |
Output is correct |
28 |
Correct |
2 ms |
256 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
147 ms |
19008 KB |
Output is correct |
31 |
Correct |
141 ms |
19036 KB |
Output is correct |
32 |
Correct |
114 ms |
15000 KB |
Output is correct |
33 |
Correct |
124 ms |
14960 KB |
Output is correct |
34 |
Correct |
126 ms |
14984 KB |
Output is correct |
35 |
Correct |
131 ms |
14968 KB |
Output is correct |
36 |
Correct |
126 ms |
14968 KB |
Output is correct |
37 |
Correct |
124 ms |
14940 KB |
Output is correct |
38 |
Correct |
128 ms |
15036 KB |
Output is correct |
39 |
Correct |
131 ms |
14968 KB |
Output is correct |
40 |
Correct |
135 ms |
15160 KB |
Output is correct |
41 |
Correct |
140 ms |
16996 KB |
Output is correct |
42 |
Correct |
140 ms |
16584 KB |
Output is correct |
43 |
Correct |
130 ms |
18680 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
252 KB |
Output is correct |
2 |
Correct |
2 ms |
424 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
256 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
256 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
256 KB |
Output is correct |
9 |
Correct |
2 ms |
252 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
13 |
Correct |
2 ms |
296 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
256 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
348 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
256 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
364 KB |
Output is correct |
17 |
Correct |
2 ms |
252 KB |
Output is correct |
18 |
Correct |
2 ms |
348 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
256 KB |
Output is correct |
24 |
Correct |
2 ms |
348 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
256 KB |
Output is correct |
27 |
Correct |
2 ms |
256 KB |
Output is correct |
28 |
Correct |
2 ms |
256 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
147 ms |
19008 KB |
Output is correct |
31 |
Correct |
141 ms |
19036 KB |
Output is correct |
32 |
Correct |
114 ms |
15000 KB |
Output is correct |
33 |
Correct |
124 ms |
14960 KB |
Output is correct |
34 |
Correct |
126 ms |
14984 KB |
Output is correct |
35 |
Correct |
131 ms |
14968 KB |
Output is correct |
36 |
Correct |
126 ms |
14968 KB |
Output is correct |
37 |
Correct |
124 ms |
14940 KB |
Output is correct |
38 |
Correct |
128 ms |
15036 KB |
Output is correct |
39 |
Correct |
131 ms |
14968 KB |
Output is correct |
40 |
Correct |
135 ms |
15160 KB |
Output is correct |
41 |
Correct |
140 ms |
16996 KB |
Output is correct |
42 |
Correct |
140 ms |
16584 KB |
Output is correct |
43 |
Correct |
130 ms |
18680 KB |
Output is correct |
44 |
Correct |
2 ms |
252 KB |
Output is correct |
45 |
Correct |
2 ms |
424 KB |
Output is correct |
46 |
Correct |
2 ms |
256 KB |
Output is correct |
47 |
Correct |
2 ms |
256 KB |
Output is correct |
48 |
Correct |
2 ms |
376 KB |
Output is correct |
49 |
Correct |
2 ms |
256 KB |
Output is correct |
50 |
Correct |
2 ms |
376 KB |
Output is correct |
51 |
Correct |
2 ms |
256 KB |
Output is correct |
52 |
Correct |
2 ms |
252 KB |
Output is correct |
53 |
Correct |
2 ms |
256 KB |
Output is correct |
54 |
Correct |
2 ms |
376 KB |
Output is correct |
55 |
Correct |
2 ms |
380 KB |
Output is correct |
56 |
Correct |
2 ms |
296 KB |
Output is correct |
57 |
Correct |
2 ms |
376 KB |
Output is correct |
58 |
Correct |
2 ms |
376 KB |
Output is correct |
59 |
Correct |
2 ms |
256 KB |
Output is correct |
60 |
Correct |
2 ms |
376 KB |
Output is correct |
61 |
Correct |
2 ms |
376 KB |
Output is correct |
62 |
Correct |
2 ms |
376 KB |
Output is correct |
63 |
Correct |
2 ms |
376 KB |
Output is correct |
64 |
Correct |
131 ms |
19072 KB |
Output is correct |
65 |
Correct |
131 ms |
18892 KB |
Output is correct |
66 |
Correct |
136 ms |
18652 KB |
Output is correct |
67 |
Correct |
136 ms |
18032 KB |
Output is correct |
68 |
Correct |
15 ms |
2040 KB |
Output is correct |
69 |
Correct |
15 ms |
2040 KB |
Output is correct |
70 |
Correct |
14 ms |
2040 KB |
Output is correct |
71 |
Correct |
14 ms |
2168 KB |
Output is correct |
72 |
Correct |
14 ms |
2168 KB |
Output is correct |
73 |
Correct |
15 ms |
1912 KB |
Output is correct |
74 |
Correct |
125 ms |
14968 KB |
Output is correct |
75 |
Correct |
124 ms |
14840 KB |
Output is correct |
76 |
Correct |
127 ms |
18952 KB |
Output is correct |
77 |
Correct |
130 ms |
18952 KB |
Output is correct |
78 |
Correct |
132 ms |
16144 KB |
Output is correct |
79 |
Correct |
126 ms |
16236 KB |
Output is correct |
80 |
Correct |
114 ms |
14940 KB |
Output is correct |
81 |
Correct |
126 ms |
16344 KB |
Output is correct |
82 |
Correct |
126 ms |
16320 KB |
Output is correct |
83 |
Correct |
136 ms |
15056 KB |
Output is correct |
84 |
Correct |
136 ms |
15100 KB |
Output is correct |
85 |
Correct |
136 ms |
14956 KB |
Output is correct |
86 |
Correct |
131 ms |
14828 KB |
Output is correct |
87 |
Correct |
139 ms |
14920 KB |
Output is correct |
88 |
Correct |
136 ms |
14840 KB |
Output is correct |
89 |
Correct |
135 ms |
14984 KB |
Output is correct |
90 |
Correct |
135 ms |
14952 KB |
Output is correct |
91 |
Correct |
137 ms |
15052 KB |
Output is correct |
92 |
Correct |
140 ms |
15172 KB |
Output is correct |