#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
const int maxn = 200200;
struct Fenwick {
int tree[maxn];
void set(int x, int v) {
for (int i = x; i < maxn; i += i & -i) tree[i] += v;
}
int get(int x) {
int res = 0;
for (int i = x; i; i -= i & -i) res += tree[i];
return res;
}
} bit;
long long count_swaps(vector<int> s) {
int n = (int) s.size() / 2;
long long res = 0;
vector<pair<int, int> > v;
vector<pair<int, int> > ord[maxn];
for (int i = 0; i < (int) s.size(); i++) {
ord[abs(s[i])].emplace_back(s[i], i);
}
for (int i = 1; i <= n; i++) {
sort(ord[i].begin(), ord[i].end());
for (int j = 0; j < (int) ord[i].size() / 2; j++) {
int l = ord[i][j].second;
int r = ord[i][j + (int) ord[i].size() / 2].second;
if (l > r) {
swap(l, r); res++;
}
v.emplace_back(l + 1, r + 1);
}
}
for (int i = 1; i <= 2 * n; i++) bit.set(i, 1);
sort(v.begin(), v.end());
for (auto i : v) {
res += bit.get(i.second - 1) - bit.get(i.first);
bit.set(i.first, -1);
bit.set(i.second, -1);
}
return res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
4984 KB |
Output is correct |
2 |
Correct |
8 ms |
4984 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
4984 KB |
Output is correct |
2 |
Correct |
8 ms |
4984 KB |
Output is correct |
3 |
Correct |
8 ms |
5112 KB |
Output is correct |
4 |
Correct |
9 ms |
5112 KB |
Output is correct |
5 |
Correct |
8 ms |
4984 KB |
Output is correct |
6 |
Correct |
10 ms |
4984 KB |
Output is correct |
7 |
Correct |
8 ms |
4984 KB |
Output is correct |
8 |
Correct |
9 ms |
5112 KB |
Output is correct |
9 |
Correct |
9 ms |
5112 KB |
Output is correct |
10 |
Correct |
9 ms |
4984 KB |
Output is correct |
11 |
Correct |
8 ms |
4984 KB |
Output is correct |
12 |
Correct |
8 ms |
5112 KB |
Output is correct |
13 |
Correct |
8 ms |
4988 KB |
Output is correct |
14 |
Correct |
9 ms |
4984 KB |
Output is correct |
15 |
Correct |
8 ms |
4984 KB |
Output is correct |
16 |
Correct |
9 ms |
4984 KB |
Output is correct |
17 |
Correct |
9 ms |
4984 KB |
Output is correct |
18 |
Correct |
9 ms |
5112 KB |
Output is correct |
19 |
Correct |
8 ms |
4984 KB |
Output is correct |
20 |
Correct |
8 ms |
5112 KB |
Output is correct |
21 |
Correct |
9 ms |
4984 KB |
Output is correct |
22 |
Correct |
8 ms |
4984 KB |
Output is correct |
23 |
Correct |
9 ms |
5112 KB |
Output is correct |
24 |
Correct |
9 ms |
4984 KB |
Output is correct |
25 |
Correct |
8 ms |
4984 KB |
Output is correct |
26 |
Correct |
8 ms |
4984 KB |
Output is correct |
27 |
Correct |
8 ms |
4984 KB |
Output is correct |
28 |
Correct |
9 ms |
4984 KB |
Output is correct |
29 |
Correct |
8 ms |
5112 KB |
Output is correct |
30 |
Correct |
10 ms |
4984 KB |
Output is correct |
31 |
Correct |
8 ms |
4988 KB |
Output is correct |
32 |
Correct |
9 ms |
4984 KB |
Output is correct |
33 |
Correct |
8 ms |
4984 KB |
Output is correct |
34 |
Correct |
8 ms |
4988 KB |
Output is correct |
35 |
Correct |
9 ms |
4984 KB |
Output is correct |
36 |
Correct |
8 ms |
4984 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
4984 KB |
Output is correct |
2 |
Correct |
8 ms |
4984 KB |
Output is correct |
3 |
Correct |
8 ms |
4984 KB |
Output is correct |
4 |
Correct |
9 ms |
4984 KB |
Output is correct |
5 |
Correct |
9 ms |
4984 KB |
Output is correct |
6 |
Correct |
8 ms |
4984 KB |
Output is correct |
7 |
Correct |
8 ms |
4988 KB |
Output is correct |
8 |
Correct |
8 ms |
4984 KB |
Output is correct |
9 |
Correct |
8 ms |
4984 KB |
Output is correct |
10 |
Correct |
9 ms |
4984 KB |
Output is correct |
11 |
Correct |
8 ms |
5112 KB |
Output is correct |
12 |
Correct |
9 ms |
4988 KB |
Output is correct |
13 |
Correct |
8 ms |
4984 KB |
Output is correct |
14 |
Correct |
8 ms |
4984 KB |
Output is correct |
15 |
Correct |
8 ms |
4988 KB |
Output is correct |
16 |
Correct |
8 ms |
4984 KB |
Output is correct |
17 |
Correct |
8 ms |
4984 KB |
Output is correct |
18 |
Correct |
9 ms |
5112 KB |
Output is correct |
19 |
Correct |
10 ms |
5160 KB |
Output is correct |
20 |
Correct |
14 ms |
5748 KB |
Output is correct |
21 |
Correct |
16 ms |
5748 KB |
Output is correct |
22 |
Correct |
71 ms |
12008 KB |
Output is correct |
23 |
Correct |
66 ms |
12008 KB |
Output is correct |
24 |
Correct |
74 ms |
12008 KB |
Output is correct |
25 |
Correct |
56 ms |
12008 KB |
Output is correct |
26 |
Correct |
74 ms |
12008 KB |
Output is correct |
27 |
Correct |
61 ms |
11880 KB |
Output is correct |
28 |
Correct |
57 ms |
12008 KB |
Output is correct |
29 |
Correct |
58 ms |
12012 KB |
Output is correct |
30 |
Correct |
56 ms |
12020 KB |
Output is correct |
31 |
Correct |
72 ms |
11988 KB |
Output is correct |
32 |
Correct |
61 ms |
12008 KB |
Output is correct |
33 |
Correct |
57 ms |
11884 KB |
Output is correct |
34 |
Correct |
58 ms |
12008 KB |
Output is correct |
35 |
Correct |
8 ms |
4984 KB |
Output is correct |
36 |
Correct |
10 ms |
4988 KB |
Output is correct |
37 |
Correct |
60 ms |
12136 KB |
Output is correct |
38 |
Correct |
61 ms |
12136 KB |
Output is correct |
39 |
Correct |
60 ms |
12004 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
4984 KB |
Output is correct |
2 |
Correct |
8 ms |
4984 KB |
Output is correct |
3 |
Correct |
8 ms |
4984 KB |
Output is correct |
4 |
Correct |
8 ms |
4984 KB |
Output is correct |
5 |
Correct |
94 ms |
12668 KB |
Output is correct |
6 |
Correct |
75 ms |
12148 KB |
Output is correct |
7 |
Correct |
101 ms |
12760 KB |
Output is correct |
8 |
Correct |
62 ms |
12200 KB |
Output is correct |
9 |
Correct |
92 ms |
12656 KB |
Output is correct |
10 |
Correct |
90 ms |
12396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
4984 KB |
Output is correct |
2 |
Correct |
8 ms |
4984 KB |
Output is correct |
3 |
Correct |
8 ms |
5112 KB |
Output is correct |
4 |
Correct |
9 ms |
5112 KB |
Output is correct |
5 |
Correct |
8 ms |
4984 KB |
Output is correct |
6 |
Correct |
10 ms |
4984 KB |
Output is correct |
7 |
Correct |
8 ms |
4984 KB |
Output is correct |
8 |
Correct |
9 ms |
5112 KB |
Output is correct |
9 |
Correct |
9 ms |
5112 KB |
Output is correct |
10 |
Correct |
9 ms |
4984 KB |
Output is correct |
11 |
Correct |
8 ms |
4984 KB |
Output is correct |
12 |
Correct |
8 ms |
5112 KB |
Output is correct |
13 |
Correct |
8 ms |
4988 KB |
Output is correct |
14 |
Correct |
9 ms |
4984 KB |
Output is correct |
15 |
Correct |
8 ms |
4984 KB |
Output is correct |
16 |
Correct |
9 ms |
4984 KB |
Output is correct |
17 |
Correct |
9 ms |
4984 KB |
Output is correct |
18 |
Correct |
9 ms |
5112 KB |
Output is correct |
19 |
Correct |
8 ms |
4984 KB |
Output is correct |
20 |
Correct |
8 ms |
5112 KB |
Output is correct |
21 |
Correct |
9 ms |
4984 KB |
Output is correct |
22 |
Correct |
8 ms |
4984 KB |
Output is correct |
23 |
Correct |
9 ms |
5112 KB |
Output is correct |
24 |
Correct |
9 ms |
4984 KB |
Output is correct |
25 |
Correct |
8 ms |
4984 KB |
Output is correct |
26 |
Correct |
8 ms |
4984 KB |
Output is correct |
27 |
Correct |
8 ms |
4984 KB |
Output is correct |
28 |
Correct |
9 ms |
4984 KB |
Output is correct |
29 |
Correct |
8 ms |
5112 KB |
Output is correct |
30 |
Correct |
10 ms |
4984 KB |
Output is correct |
31 |
Correct |
8 ms |
4988 KB |
Output is correct |
32 |
Correct |
9 ms |
4984 KB |
Output is correct |
33 |
Correct |
8 ms |
4984 KB |
Output is correct |
34 |
Correct |
8 ms |
4988 KB |
Output is correct |
35 |
Correct |
9 ms |
4984 KB |
Output is correct |
36 |
Correct |
8 ms |
4984 KB |
Output is correct |
37 |
Correct |
8 ms |
4984 KB |
Output is correct |
38 |
Correct |
8 ms |
4984 KB |
Output is correct |
39 |
Correct |
8 ms |
4984 KB |
Output is correct |
40 |
Correct |
9 ms |
5112 KB |
Output is correct |
41 |
Correct |
9 ms |
5112 KB |
Output is correct |
42 |
Correct |
9 ms |
5112 KB |
Output is correct |
43 |
Correct |
10 ms |
5112 KB |
Output is correct |
44 |
Correct |
9 ms |
5112 KB |
Output is correct |
45 |
Correct |
9 ms |
5112 KB |
Output is correct |
46 |
Correct |
9 ms |
5112 KB |
Output is correct |
47 |
Correct |
9 ms |
5112 KB |
Output is correct |
48 |
Correct |
10 ms |
5112 KB |
Output is correct |
49 |
Correct |
9 ms |
5112 KB |
Output is correct |
50 |
Correct |
9 ms |
5112 KB |
Output is correct |
51 |
Correct |
8 ms |
5112 KB |
Output is correct |
52 |
Correct |
9 ms |
5112 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
4984 KB |
Output is correct |
2 |
Correct |
8 ms |
4984 KB |
Output is correct |
3 |
Correct |
8 ms |
5112 KB |
Output is correct |
4 |
Correct |
9 ms |
5112 KB |
Output is correct |
5 |
Correct |
8 ms |
4984 KB |
Output is correct |
6 |
Correct |
10 ms |
4984 KB |
Output is correct |
7 |
Correct |
8 ms |
4984 KB |
Output is correct |
8 |
Correct |
9 ms |
5112 KB |
Output is correct |
9 |
Correct |
9 ms |
5112 KB |
Output is correct |
10 |
Correct |
9 ms |
4984 KB |
Output is correct |
11 |
Correct |
8 ms |
4984 KB |
Output is correct |
12 |
Correct |
8 ms |
5112 KB |
Output is correct |
13 |
Correct |
8 ms |
4988 KB |
Output is correct |
14 |
Correct |
9 ms |
4984 KB |
Output is correct |
15 |
Correct |
8 ms |
4984 KB |
Output is correct |
16 |
Correct |
9 ms |
4984 KB |
Output is correct |
17 |
Correct |
9 ms |
4984 KB |
Output is correct |
18 |
Correct |
9 ms |
5112 KB |
Output is correct |
19 |
Correct |
8 ms |
4984 KB |
Output is correct |
20 |
Correct |
8 ms |
5112 KB |
Output is correct |
21 |
Correct |
9 ms |
4984 KB |
Output is correct |
22 |
Correct |
8 ms |
4984 KB |
Output is correct |
23 |
Correct |
9 ms |
5112 KB |
Output is correct |
24 |
Correct |
9 ms |
4984 KB |
Output is correct |
25 |
Correct |
8 ms |
4984 KB |
Output is correct |
26 |
Correct |
8 ms |
4984 KB |
Output is correct |
27 |
Correct |
8 ms |
4984 KB |
Output is correct |
28 |
Correct |
9 ms |
4984 KB |
Output is correct |
29 |
Correct |
8 ms |
5112 KB |
Output is correct |
30 |
Correct |
10 ms |
4984 KB |
Output is correct |
31 |
Correct |
8 ms |
4988 KB |
Output is correct |
32 |
Correct |
9 ms |
4984 KB |
Output is correct |
33 |
Correct |
8 ms |
4984 KB |
Output is correct |
34 |
Correct |
8 ms |
4988 KB |
Output is correct |
35 |
Correct |
9 ms |
4984 KB |
Output is correct |
36 |
Correct |
8 ms |
4984 KB |
Output is correct |
37 |
Correct |
8 ms |
4984 KB |
Output is correct |
38 |
Correct |
9 ms |
4984 KB |
Output is correct |
39 |
Correct |
9 ms |
4984 KB |
Output is correct |
40 |
Correct |
8 ms |
4984 KB |
Output is correct |
41 |
Correct |
8 ms |
4988 KB |
Output is correct |
42 |
Correct |
8 ms |
4984 KB |
Output is correct |
43 |
Correct |
8 ms |
4984 KB |
Output is correct |
44 |
Correct |
9 ms |
4984 KB |
Output is correct |
45 |
Correct |
8 ms |
5112 KB |
Output is correct |
46 |
Correct |
9 ms |
4988 KB |
Output is correct |
47 |
Correct |
8 ms |
4984 KB |
Output is correct |
48 |
Correct |
8 ms |
4984 KB |
Output is correct |
49 |
Correct |
8 ms |
4988 KB |
Output is correct |
50 |
Correct |
8 ms |
4984 KB |
Output is correct |
51 |
Correct |
8 ms |
4984 KB |
Output is correct |
52 |
Correct |
9 ms |
5112 KB |
Output is correct |
53 |
Correct |
10 ms |
5160 KB |
Output is correct |
54 |
Correct |
14 ms |
5748 KB |
Output is correct |
55 |
Correct |
16 ms |
5748 KB |
Output is correct |
56 |
Correct |
71 ms |
12008 KB |
Output is correct |
57 |
Correct |
66 ms |
12008 KB |
Output is correct |
58 |
Correct |
74 ms |
12008 KB |
Output is correct |
59 |
Correct |
56 ms |
12008 KB |
Output is correct |
60 |
Correct |
74 ms |
12008 KB |
Output is correct |
61 |
Correct |
61 ms |
11880 KB |
Output is correct |
62 |
Correct |
57 ms |
12008 KB |
Output is correct |
63 |
Correct |
58 ms |
12012 KB |
Output is correct |
64 |
Correct |
56 ms |
12020 KB |
Output is correct |
65 |
Correct |
72 ms |
11988 KB |
Output is correct |
66 |
Correct |
61 ms |
12008 KB |
Output is correct |
67 |
Correct |
57 ms |
11884 KB |
Output is correct |
68 |
Correct |
58 ms |
12008 KB |
Output is correct |
69 |
Correct |
8 ms |
4984 KB |
Output is correct |
70 |
Correct |
10 ms |
4988 KB |
Output is correct |
71 |
Correct |
60 ms |
12136 KB |
Output is correct |
72 |
Correct |
61 ms |
12136 KB |
Output is correct |
73 |
Correct |
60 ms |
12004 KB |
Output is correct |
74 |
Correct |
8 ms |
4984 KB |
Output is correct |
75 |
Correct |
8 ms |
4984 KB |
Output is correct |
76 |
Correct |
8 ms |
4984 KB |
Output is correct |
77 |
Correct |
8 ms |
4984 KB |
Output is correct |
78 |
Correct |
94 ms |
12668 KB |
Output is correct |
79 |
Correct |
75 ms |
12148 KB |
Output is correct |
80 |
Correct |
101 ms |
12760 KB |
Output is correct |
81 |
Correct |
62 ms |
12200 KB |
Output is correct |
82 |
Correct |
92 ms |
12656 KB |
Output is correct |
83 |
Correct |
90 ms |
12396 KB |
Output is correct |
84 |
Correct |
8 ms |
4984 KB |
Output is correct |
85 |
Correct |
8 ms |
4984 KB |
Output is correct |
86 |
Correct |
8 ms |
4984 KB |
Output is correct |
87 |
Correct |
9 ms |
5112 KB |
Output is correct |
88 |
Correct |
9 ms |
5112 KB |
Output is correct |
89 |
Correct |
9 ms |
5112 KB |
Output is correct |
90 |
Correct |
10 ms |
5112 KB |
Output is correct |
91 |
Correct |
9 ms |
5112 KB |
Output is correct |
92 |
Correct |
9 ms |
5112 KB |
Output is correct |
93 |
Correct |
9 ms |
5112 KB |
Output is correct |
94 |
Correct |
9 ms |
5112 KB |
Output is correct |
95 |
Correct |
10 ms |
5112 KB |
Output is correct |
96 |
Correct |
9 ms |
5112 KB |
Output is correct |
97 |
Correct |
9 ms |
5112 KB |
Output is correct |
98 |
Correct |
8 ms |
5112 KB |
Output is correct |
99 |
Correct |
9 ms |
5112 KB |
Output is correct |
100 |
Correct |
9 ms |
5116 KB |
Output is correct |
101 |
Correct |
16 ms |
5880 KB |
Output is correct |
102 |
Correct |
16 ms |
5880 KB |
Output is correct |
103 |
Correct |
107 ms |
12656 KB |
Output is correct |
104 |
Correct |
93 ms |
12656 KB |
Output is correct |
105 |
Correct |
91 ms |
12268 KB |
Output is correct |
106 |
Correct |
95 ms |
12656 KB |
Output is correct |
107 |
Correct |
88 ms |
12016 KB |
Output is correct |
108 |
Correct |
79 ms |
12012 KB |
Output is correct |
109 |
Correct |
66 ms |
11992 KB |
Output is correct |
110 |
Correct |
60 ms |
12136 KB |
Output is correct |
111 |
Correct |
93 ms |
12784 KB |
Output is correct |
112 |
Correct |
96 ms |
12780 KB |
Output is correct |
113 |
Correct |
81 ms |
12012 KB |
Output is correct |
114 |
Correct |
88 ms |
12788 KB |
Output is correct |
115 |
Correct |
90 ms |
12656 KB |
Output is correct |