#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> fen;
int n;
void update (int i, int x) {
for (++i; i <= n; i += i&-i) {
fen[i] += x;
}
}
int query (int i) {
int ans = 0;
for (++i; i; i -= i&-i) {
ans += fen[i];
}
return ans;
}
int query (int i, int j) {
return query(j) - query(i - 1);
}
long long count_swaps(vector<int> a) {
n = a.size();
vector<vector<int>> p(n + 1), pn(n + 1);
for (int i = n - 1; ~i; --i) {
if (a[i] > 0) {
p[a[i]].push_back(i);
}
else {
pn[-a[i]].push_back(i);
}
}
fen.resize(n + 1);
long long ans = 0;
for (int i = 0; i < n; ++i) {
if (a[i] < 0 && pn[-a[i]].back() == i) {
int newi = i - query(i), newp = p[-a[i]].back() - query(p[-a[i]].back());
ans += abs(newi - newp) - (newi < newp);
update(i + 1, -1);
update(p[-a[i]].back(), 1);
p[-a[i]].pop_back();
pn[-a[i]].pop_back();
}
else if (a[i] > 0 && p[a[i]].back() == i) {
int newi = i - query(i), newp = pn[a[i]].back() - query(pn[a[i]].back());
ans += abs(newp - newi) - (newp < newi);
if (i) {
update(i - 1, -1);
}
update(pn[a[i]].back(), 1);
pn[a[i]].pop_back();
p[a[i]].pop_back();
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
0 ms |
364 KB |
Output is correct |
11 |
Correct |
0 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
512 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
364 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
1 ms |
364 KB |
Output is correct |
26 |
Correct |
1 ms |
364 KB |
Output is correct |
27 |
Correct |
1 ms |
364 KB |
Output is correct |
28 |
Correct |
1 ms |
364 KB |
Output is correct |
29 |
Correct |
1 ms |
364 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
1 ms |
364 KB |
Output is correct |
33 |
Correct |
1 ms |
364 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
1 ms |
364 KB |
Output is correct |
36 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
492 KB |
Output is correct |
19 |
Correct |
1 ms |
492 KB |
Output is correct |
20 |
Correct |
5 ms |
1644 KB |
Output is correct |
21 |
Correct |
5 ms |
1644 KB |
Output is correct |
22 |
Correct |
44 ms |
14196 KB |
Output is correct |
23 |
Correct |
42 ms |
14304 KB |
Output is correct |
24 |
Correct |
45 ms |
14216 KB |
Output is correct |
25 |
Correct |
40 ms |
14052 KB |
Output is correct |
26 |
Correct |
48 ms |
14304 KB |
Output is correct |
27 |
Correct |
41 ms |
14176 KB |
Output is correct |
28 |
Correct |
44 ms |
14436 KB |
Output is correct |
29 |
Correct |
41 ms |
14308 KB |
Output is correct |
30 |
Correct |
45 ms |
14180 KB |
Output is correct |
31 |
Correct |
45 ms |
14448 KB |
Output is correct |
32 |
Correct |
40 ms |
14212 KB |
Output is correct |
33 |
Correct |
39 ms |
14052 KB |
Output is correct |
34 |
Correct |
41 ms |
14180 KB |
Output is correct |
35 |
Correct |
1 ms |
364 KB |
Output is correct |
36 |
Correct |
1 ms |
364 KB |
Output is correct |
37 |
Correct |
41 ms |
14180 KB |
Output is correct |
38 |
Correct |
40 ms |
14180 KB |
Output is correct |
39 |
Correct |
40 ms |
14308 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
77 ms |
18412 KB |
Output is correct |
6 |
Correct |
56 ms |
13676 KB |
Output is correct |
7 |
Correct |
80 ms |
18412 KB |
Output is correct |
8 |
Correct |
39 ms |
13196 KB |
Output is correct |
9 |
Correct |
77 ms |
18412 KB |
Output is correct |
10 |
Correct |
78 ms |
15596 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
0 ms |
364 KB |
Output is correct |
11 |
Correct |
0 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
512 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
364 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
1 ms |
364 KB |
Output is correct |
26 |
Correct |
1 ms |
364 KB |
Output is correct |
27 |
Correct |
1 ms |
364 KB |
Output is correct |
28 |
Correct |
1 ms |
364 KB |
Output is correct |
29 |
Correct |
1 ms |
364 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
1 ms |
364 KB |
Output is correct |
33 |
Correct |
1 ms |
364 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
1 ms |
364 KB |
Output is correct |
36 |
Correct |
1 ms |
364 KB |
Output is correct |
37 |
Correct |
1 ms |
312 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
1 ms |
364 KB |
Output is correct |
40 |
Correct |
1 ms |
364 KB |
Output is correct |
41 |
Correct |
1 ms |
492 KB |
Output is correct |
42 |
Correct |
1 ms |
492 KB |
Output is correct |
43 |
Correct |
1 ms |
492 KB |
Output is correct |
44 |
Correct |
1 ms |
492 KB |
Output is correct |
45 |
Correct |
1 ms |
492 KB |
Output is correct |
46 |
Correct |
1 ms |
492 KB |
Output is correct |
47 |
Correct |
1 ms |
492 KB |
Output is correct |
48 |
Correct |
1 ms |
492 KB |
Output is correct |
49 |
Correct |
1 ms |
492 KB |
Output is correct |
50 |
Correct |
1 ms |
492 KB |
Output is correct |
51 |
Correct |
1 ms |
492 KB |
Output is correct |
52 |
Correct |
1 ms |
492 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
0 ms |
364 KB |
Output is correct |
11 |
Correct |
0 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
1 ms |
364 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
512 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
364 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
1 ms |
364 KB |
Output is correct |
26 |
Correct |
1 ms |
364 KB |
Output is correct |
27 |
Correct |
1 ms |
364 KB |
Output is correct |
28 |
Correct |
1 ms |
364 KB |
Output is correct |
29 |
Correct |
1 ms |
364 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
1 ms |
364 KB |
Output is correct |
33 |
Correct |
1 ms |
364 KB |
Output is correct |
34 |
Correct |
1 ms |
364 KB |
Output is correct |
35 |
Correct |
1 ms |
364 KB |
Output is correct |
36 |
Correct |
1 ms |
364 KB |
Output is correct |
37 |
Correct |
1 ms |
364 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
0 ms |
364 KB |
Output is correct |
40 |
Correct |
1 ms |
364 KB |
Output is correct |
41 |
Correct |
1 ms |
364 KB |
Output is correct |
42 |
Correct |
1 ms |
364 KB |
Output is correct |
43 |
Correct |
1 ms |
364 KB |
Output is correct |
44 |
Correct |
1 ms |
364 KB |
Output is correct |
45 |
Correct |
1 ms |
364 KB |
Output is correct |
46 |
Correct |
1 ms |
364 KB |
Output is correct |
47 |
Correct |
1 ms |
364 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
364 KB |
Output is correct |
50 |
Correct |
1 ms |
364 KB |
Output is correct |
51 |
Correct |
1 ms |
364 KB |
Output is correct |
52 |
Correct |
1 ms |
492 KB |
Output is correct |
53 |
Correct |
1 ms |
492 KB |
Output is correct |
54 |
Correct |
5 ms |
1644 KB |
Output is correct |
55 |
Correct |
5 ms |
1644 KB |
Output is correct |
56 |
Correct |
44 ms |
14196 KB |
Output is correct |
57 |
Correct |
42 ms |
14304 KB |
Output is correct |
58 |
Correct |
45 ms |
14216 KB |
Output is correct |
59 |
Correct |
40 ms |
14052 KB |
Output is correct |
60 |
Correct |
48 ms |
14304 KB |
Output is correct |
61 |
Correct |
41 ms |
14176 KB |
Output is correct |
62 |
Correct |
44 ms |
14436 KB |
Output is correct |
63 |
Correct |
41 ms |
14308 KB |
Output is correct |
64 |
Correct |
45 ms |
14180 KB |
Output is correct |
65 |
Correct |
45 ms |
14448 KB |
Output is correct |
66 |
Correct |
40 ms |
14212 KB |
Output is correct |
67 |
Correct |
39 ms |
14052 KB |
Output is correct |
68 |
Correct |
41 ms |
14180 KB |
Output is correct |
69 |
Correct |
1 ms |
364 KB |
Output is correct |
70 |
Correct |
1 ms |
364 KB |
Output is correct |
71 |
Correct |
41 ms |
14180 KB |
Output is correct |
72 |
Correct |
40 ms |
14180 KB |
Output is correct |
73 |
Correct |
40 ms |
14308 KB |
Output is correct |
74 |
Correct |
1 ms |
364 KB |
Output is correct |
75 |
Correct |
1 ms |
364 KB |
Output is correct |
76 |
Correct |
1 ms |
364 KB |
Output is correct |
77 |
Correct |
1 ms |
364 KB |
Output is correct |
78 |
Correct |
77 ms |
18412 KB |
Output is correct |
79 |
Correct |
56 ms |
13676 KB |
Output is correct |
80 |
Correct |
80 ms |
18412 KB |
Output is correct |
81 |
Correct |
39 ms |
13196 KB |
Output is correct |
82 |
Correct |
77 ms |
18412 KB |
Output is correct |
83 |
Correct |
78 ms |
15596 KB |
Output is correct |
84 |
Correct |
1 ms |
312 KB |
Output is correct |
85 |
Correct |
1 ms |
364 KB |
Output is correct |
86 |
Correct |
1 ms |
364 KB |
Output is correct |
87 |
Correct |
1 ms |
364 KB |
Output is correct |
88 |
Correct |
1 ms |
492 KB |
Output is correct |
89 |
Correct |
1 ms |
492 KB |
Output is correct |
90 |
Correct |
1 ms |
492 KB |
Output is correct |
91 |
Correct |
1 ms |
492 KB |
Output is correct |
92 |
Correct |
1 ms |
492 KB |
Output is correct |
93 |
Correct |
1 ms |
492 KB |
Output is correct |
94 |
Correct |
1 ms |
492 KB |
Output is correct |
95 |
Correct |
1 ms |
492 KB |
Output is correct |
96 |
Correct |
1 ms |
492 KB |
Output is correct |
97 |
Correct |
1 ms |
492 KB |
Output is correct |
98 |
Correct |
1 ms |
492 KB |
Output is correct |
99 |
Correct |
1 ms |
492 KB |
Output is correct |
100 |
Correct |
1 ms |
492 KB |
Output is correct |
101 |
Correct |
7 ms |
2156 KB |
Output is correct |
102 |
Correct |
6 ms |
1772 KB |
Output is correct |
103 |
Correct |
129 ms |
19564 KB |
Output is correct |
104 |
Correct |
92 ms |
19564 KB |
Output is correct |
105 |
Correct |
99 ms |
16876 KB |
Output is correct |
106 |
Correct |
74 ms |
19552 KB |
Output is correct |
107 |
Correct |
63 ms |
14956 KB |
Output is correct |
108 |
Correct |
89 ms |
15524 KB |
Output is correct |
109 |
Correct |
41 ms |
14568 KB |
Output is correct |
110 |
Correct |
40 ms |
14180 KB |
Output is correct |
111 |
Correct |
89 ms |
19052 KB |
Output is correct |
112 |
Correct |
103 ms |
18156 KB |
Output is correct |
113 |
Correct |
80 ms |
14956 KB |
Output is correct |
114 |
Correct |
95 ms |
19652 KB |
Output is correct |
115 |
Correct |
87 ms |
19564 KB |
Output is correct |