#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
int a[200001],cnt=1,n;
long long res,f[200001];
vector <int> pos[200001];
long long count_swaps(vector <int> s){
n=s.size()/2;
for (int i=n*2-1;i>=0;i--)
pos[s[i]+n].push_back(i);
for (int i=0;i<n*2;i++)
if (!a[i]){
a[i]=cnt;
int j=pos[n-s[i]].back();
a[j]=cnt+1;
if (s[i]>0)
swap(a[i],a[j]);
pos[s[i]+n].pop_back();
pos[n-s[i]].pop_back();
cnt+=2;
}
for (int i=n*2-1;i>=0;i--){
for (int j=a[i];j;j-=j&(-j))
res+=f[j];
for (int j=a[i];j<=n*2;j+=j&(-j))
f[j]++;
}
return res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
6744 KB |
Output is correct |
2 |
Correct |
1 ms |
6744 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
6744 KB |
Output is correct |
2 |
Correct |
1 ms |
6744 KB |
Output is correct |
3 |
Correct |
1 ms |
6744 KB |
Output is correct |
4 |
Correct |
1 ms |
6748 KB |
Output is correct |
5 |
Correct |
1 ms |
6748 KB |
Output is correct |
6 |
Correct |
2 ms |
6748 KB |
Output is correct |
7 |
Correct |
1 ms |
6744 KB |
Output is correct |
8 |
Correct |
1 ms |
6744 KB |
Output is correct |
9 |
Correct |
1 ms |
6748 KB |
Output is correct |
10 |
Correct |
1 ms |
6744 KB |
Output is correct |
11 |
Correct |
1 ms |
6744 KB |
Output is correct |
12 |
Correct |
1 ms |
6744 KB |
Output is correct |
13 |
Correct |
1 ms |
6744 KB |
Output is correct |
14 |
Correct |
1 ms |
6744 KB |
Output is correct |
15 |
Correct |
1 ms |
6744 KB |
Output is correct |
16 |
Correct |
1 ms |
6748 KB |
Output is correct |
17 |
Correct |
2 ms |
6744 KB |
Output is correct |
18 |
Correct |
1 ms |
6744 KB |
Output is correct |
19 |
Correct |
1 ms |
6744 KB |
Output is correct |
20 |
Correct |
1 ms |
6744 KB |
Output is correct |
21 |
Correct |
1 ms |
6744 KB |
Output is correct |
22 |
Correct |
1 ms |
6756 KB |
Output is correct |
23 |
Correct |
1 ms |
6744 KB |
Output is correct |
24 |
Correct |
1 ms |
6744 KB |
Output is correct |
25 |
Correct |
1 ms |
6744 KB |
Output is correct |
26 |
Correct |
1 ms |
6744 KB |
Output is correct |
27 |
Correct |
2 ms |
6744 KB |
Output is correct |
28 |
Correct |
2 ms |
6744 KB |
Output is correct |
29 |
Correct |
1 ms |
7000 KB |
Output is correct |
30 |
Correct |
1 ms |
6748 KB |
Output is correct |
31 |
Correct |
2 ms |
6744 KB |
Output is correct |
32 |
Correct |
1 ms |
6744 KB |
Output is correct |
33 |
Correct |
1 ms |
6756 KB |
Output is correct |
34 |
Correct |
1 ms |
6748 KB |
Output is correct |
35 |
Correct |
1 ms |
6744 KB |
Output is correct |
36 |
Correct |
1 ms |
6744 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
6744 KB |
Output is correct |
2 |
Correct |
1 ms |
6744 KB |
Output is correct |
3 |
Correct |
1 ms |
6744 KB |
Output is correct |
4 |
Correct |
1 ms |
6744 KB |
Output is correct |
5 |
Correct |
2 ms |
6744 KB |
Output is correct |
6 |
Correct |
1 ms |
6744 KB |
Output is correct |
7 |
Correct |
1 ms |
6744 KB |
Output is correct |
8 |
Correct |
2 ms |
6748 KB |
Output is correct |
9 |
Correct |
1 ms |
6744 KB |
Output is correct |
10 |
Correct |
1 ms |
6744 KB |
Output is correct |
11 |
Correct |
2 ms |
6744 KB |
Output is correct |
12 |
Correct |
2 ms |
6744 KB |
Output is correct |
13 |
Correct |
1 ms |
6748 KB |
Output is correct |
14 |
Correct |
1 ms |
6744 KB |
Output is correct |
15 |
Correct |
1 ms |
6744 KB |
Output is correct |
16 |
Correct |
1 ms |
6748 KB |
Output is correct |
17 |
Correct |
1 ms |
6744 KB |
Output is correct |
18 |
Correct |
1 ms |
6748 KB |
Output is correct |
19 |
Correct |
2 ms |
6904 KB |
Output is correct |
20 |
Correct |
3 ms |
7000 KB |
Output is correct |
21 |
Correct |
4 ms |
7000 KB |
Output is correct |
22 |
Correct |
24 ms |
9956 KB |
Output is correct |
23 |
Correct |
21 ms |
9924 KB |
Output is correct |
24 |
Correct |
24 ms |
9972 KB |
Output is correct |
25 |
Correct |
20 ms |
9808 KB |
Output is correct |
26 |
Correct |
24 ms |
9924 KB |
Output is correct |
27 |
Correct |
20 ms |
9932 KB |
Output is correct |
28 |
Correct |
25 ms |
10320 KB |
Output is correct |
29 |
Correct |
21 ms |
9808 KB |
Output is correct |
30 |
Correct |
21 ms |
9808 KB |
Output is correct |
31 |
Correct |
23 ms |
9824 KB |
Output is correct |
32 |
Correct |
21 ms |
9808 KB |
Output is correct |
33 |
Correct |
22 ms |
9808 KB |
Output is correct |
34 |
Correct |
21 ms |
9800 KB |
Output is correct |
35 |
Correct |
2 ms |
6744 KB |
Output is correct |
36 |
Correct |
1 ms |
6744 KB |
Output is correct |
37 |
Correct |
20 ms |
9808 KB |
Output is correct |
38 |
Correct |
20 ms |
9808 KB |
Output is correct |
39 |
Correct |
20 ms |
9808 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
6744 KB |
Output is correct |
2 |
Correct |
2 ms |
6744 KB |
Output is correct |
3 |
Correct |
1 ms |
6744 KB |
Output is correct |
4 |
Correct |
1 ms |
6744 KB |
Output is correct |
5 |
Correct |
32 ms |
15296 KB |
Output is correct |
6 |
Correct |
25 ms |
10328 KB |
Output is correct |
7 |
Correct |
31 ms |
15188 KB |
Output is correct |
8 |
Correct |
21 ms |
9976 KB |
Output is correct |
9 |
Correct |
32 ms |
15196 KB |
Output is correct |
10 |
Correct |
31 ms |
12116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
6744 KB |
Output is correct |
2 |
Correct |
1 ms |
6744 KB |
Output is correct |
3 |
Correct |
1 ms |
6744 KB |
Output is correct |
4 |
Correct |
1 ms |
6748 KB |
Output is correct |
5 |
Correct |
1 ms |
6748 KB |
Output is correct |
6 |
Correct |
2 ms |
6748 KB |
Output is correct |
7 |
Correct |
1 ms |
6744 KB |
Output is correct |
8 |
Correct |
1 ms |
6744 KB |
Output is correct |
9 |
Correct |
1 ms |
6748 KB |
Output is correct |
10 |
Correct |
1 ms |
6744 KB |
Output is correct |
11 |
Correct |
1 ms |
6744 KB |
Output is correct |
12 |
Correct |
1 ms |
6744 KB |
Output is correct |
13 |
Correct |
1 ms |
6744 KB |
Output is correct |
14 |
Correct |
1 ms |
6744 KB |
Output is correct |
15 |
Correct |
1 ms |
6744 KB |
Output is correct |
16 |
Correct |
1 ms |
6748 KB |
Output is correct |
17 |
Correct |
2 ms |
6744 KB |
Output is correct |
18 |
Correct |
1 ms |
6744 KB |
Output is correct |
19 |
Correct |
1 ms |
6744 KB |
Output is correct |
20 |
Correct |
1 ms |
6744 KB |
Output is correct |
21 |
Correct |
1 ms |
6744 KB |
Output is correct |
22 |
Correct |
1 ms |
6756 KB |
Output is correct |
23 |
Correct |
1 ms |
6744 KB |
Output is correct |
24 |
Correct |
1 ms |
6744 KB |
Output is correct |
25 |
Correct |
1 ms |
6744 KB |
Output is correct |
26 |
Correct |
1 ms |
6744 KB |
Output is correct |
27 |
Correct |
2 ms |
6744 KB |
Output is correct |
28 |
Correct |
2 ms |
6744 KB |
Output is correct |
29 |
Correct |
1 ms |
7000 KB |
Output is correct |
30 |
Correct |
1 ms |
6748 KB |
Output is correct |
31 |
Correct |
2 ms |
6744 KB |
Output is correct |
32 |
Correct |
1 ms |
6744 KB |
Output is correct |
33 |
Correct |
1 ms |
6756 KB |
Output is correct |
34 |
Correct |
1 ms |
6748 KB |
Output is correct |
35 |
Correct |
1 ms |
6744 KB |
Output is correct |
36 |
Correct |
1 ms |
6744 KB |
Output is correct |
37 |
Correct |
1 ms |
6744 KB |
Output is correct |
38 |
Correct |
1 ms |
6744 KB |
Output is correct |
39 |
Correct |
1 ms |
6744 KB |
Output is correct |
40 |
Correct |
1 ms |
6744 KB |
Output is correct |
41 |
Correct |
2 ms |
6744 KB |
Output is correct |
42 |
Correct |
2 ms |
6744 KB |
Output is correct |
43 |
Correct |
2 ms |
6748 KB |
Output is correct |
44 |
Correct |
2 ms |
6748 KB |
Output is correct |
45 |
Correct |
1 ms |
6744 KB |
Output is correct |
46 |
Correct |
1 ms |
6744 KB |
Output is correct |
47 |
Correct |
2 ms |
6744 KB |
Output is correct |
48 |
Correct |
1 ms |
6744 KB |
Output is correct |
49 |
Correct |
2 ms |
6744 KB |
Output is correct |
50 |
Correct |
2 ms |
6744 KB |
Output is correct |
51 |
Correct |
1 ms |
6744 KB |
Output is correct |
52 |
Correct |
2 ms |
6744 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
6744 KB |
Output is correct |
2 |
Correct |
1 ms |
6744 KB |
Output is correct |
3 |
Correct |
1 ms |
6744 KB |
Output is correct |
4 |
Correct |
1 ms |
6748 KB |
Output is correct |
5 |
Correct |
1 ms |
6748 KB |
Output is correct |
6 |
Correct |
2 ms |
6748 KB |
Output is correct |
7 |
Correct |
1 ms |
6744 KB |
Output is correct |
8 |
Correct |
1 ms |
6744 KB |
Output is correct |
9 |
Correct |
1 ms |
6748 KB |
Output is correct |
10 |
Correct |
1 ms |
6744 KB |
Output is correct |
11 |
Correct |
1 ms |
6744 KB |
Output is correct |
12 |
Correct |
1 ms |
6744 KB |
Output is correct |
13 |
Correct |
1 ms |
6744 KB |
Output is correct |
14 |
Correct |
1 ms |
6744 KB |
Output is correct |
15 |
Correct |
1 ms |
6744 KB |
Output is correct |
16 |
Correct |
1 ms |
6748 KB |
Output is correct |
17 |
Correct |
2 ms |
6744 KB |
Output is correct |
18 |
Correct |
1 ms |
6744 KB |
Output is correct |
19 |
Correct |
1 ms |
6744 KB |
Output is correct |
20 |
Correct |
1 ms |
6744 KB |
Output is correct |
21 |
Correct |
1 ms |
6744 KB |
Output is correct |
22 |
Correct |
1 ms |
6756 KB |
Output is correct |
23 |
Correct |
1 ms |
6744 KB |
Output is correct |
24 |
Correct |
1 ms |
6744 KB |
Output is correct |
25 |
Correct |
1 ms |
6744 KB |
Output is correct |
26 |
Correct |
1 ms |
6744 KB |
Output is correct |
27 |
Correct |
2 ms |
6744 KB |
Output is correct |
28 |
Correct |
2 ms |
6744 KB |
Output is correct |
29 |
Correct |
1 ms |
7000 KB |
Output is correct |
30 |
Correct |
1 ms |
6748 KB |
Output is correct |
31 |
Correct |
2 ms |
6744 KB |
Output is correct |
32 |
Correct |
1 ms |
6744 KB |
Output is correct |
33 |
Correct |
1 ms |
6756 KB |
Output is correct |
34 |
Correct |
1 ms |
6748 KB |
Output is correct |
35 |
Correct |
1 ms |
6744 KB |
Output is correct |
36 |
Correct |
1 ms |
6744 KB |
Output is correct |
37 |
Correct |
1 ms |
6744 KB |
Output is correct |
38 |
Correct |
1 ms |
6744 KB |
Output is correct |
39 |
Correct |
2 ms |
6744 KB |
Output is correct |
40 |
Correct |
1 ms |
6744 KB |
Output is correct |
41 |
Correct |
1 ms |
6744 KB |
Output is correct |
42 |
Correct |
2 ms |
6748 KB |
Output is correct |
43 |
Correct |
1 ms |
6744 KB |
Output is correct |
44 |
Correct |
1 ms |
6744 KB |
Output is correct |
45 |
Correct |
2 ms |
6744 KB |
Output is correct |
46 |
Correct |
2 ms |
6744 KB |
Output is correct |
47 |
Correct |
1 ms |
6748 KB |
Output is correct |
48 |
Correct |
1 ms |
6744 KB |
Output is correct |
49 |
Correct |
1 ms |
6744 KB |
Output is correct |
50 |
Correct |
1 ms |
6748 KB |
Output is correct |
51 |
Correct |
1 ms |
6744 KB |
Output is correct |
52 |
Correct |
1 ms |
6748 KB |
Output is correct |
53 |
Correct |
2 ms |
6904 KB |
Output is correct |
54 |
Correct |
3 ms |
7000 KB |
Output is correct |
55 |
Correct |
4 ms |
7000 KB |
Output is correct |
56 |
Correct |
24 ms |
9956 KB |
Output is correct |
57 |
Correct |
21 ms |
9924 KB |
Output is correct |
58 |
Correct |
24 ms |
9972 KB |
Output is correct |
59 |
Correct |
20 ms |
9808 KB |
Output is correct |
60 |
Correct |
24 ms |
9924 KB |
Output is correct |
61 |
Correct |
20 ms |
9932 KB |
Output is correct |
62 |
Correct |
25 ms |
10320 KB |
Output is correct |
63 |
Correct |
21 ms |
9808 KB |
Output is correct |
64 |
Correct |
21 ms |
9808 KB |
Output is correct |
65 |
Correct |
23 ms |
9824 KB |
Output is correct |
66 |
Correct |
21 ms |
9808 KB |
Output is correct |
67 |
Correct |
22 ms |
9808 KB |
Output is correct |
68 |
Correct |
21 ms |
9800 KB |
Output is correct |
69 |
Correct |
2 ms |
6744 KB |
Output is correct |
70 |
Correct |
1 ms |
6744 KB |
Output is correct |
71 |
Correct |
20 ms |
9808 KB |
Output is correct |
72 |
Correct |
20 ms |
9808 KB |
Output is correct |
73 |
Correct |
20 ms |
9808 KB |
Output is correct |
74 |
Correct |
1 ms |
6744 KB |
Output is correct |
75 |
Correct |
2 ms |
6744 KB |
Output is correct |
76 |
Correct |
1 ms |
6744 KB |
Output is correct |
77 |
Correct |
1 ms |
6744 KB |
Output is correct |
78 |
Correct |
32 ms |
15296 KB |
Output is correct |
79 |
Correct |
25 ms |
10328 KB |
Output is correct |
80 |
Correct |
31 ms |
15188 KB |
Output is correct |
81 |
Correct |
21 ms |
9976 KB |
Output is correct |
82 |
Correct |
32 ms |
15196 KB |
Output is correct |
83 |
Correct |
31 ms |
12116 KB |
Output is correct |
84 |
Correct |
1 ms |
6744 KB |
Output is correct |
85 |
Correct |
1 ms |
6744 KB |
Output is correct |
86 |
Correct |
1 ms |
6744 KB |
Output is correct |
87 |
Correct |
1 ms |
6744 KB |
Output is correct |
88 |
Correct |
2 ms |
6744 KB |
Output is correct |
89 |
Correct |
2 ms |
6744 KB |
Output is correct |
90 |
Correct |
2 ms |
6748 KB |
Output is correct |
91 |
Correct |
2 ms |
6748 KB |
Output is correct |
92 |
Correct |
1 ms |
6744 KB |
Output is correct |
93 |
Correct |
1 ms |
6744 KB |
Output is correct |
94 |
Correct |
2 ms |
6744 KB |
Output is correct |
95 |
Correct |
1 ms |
6744 KB |
Output is correct |
96 |
Correct |
2 ms |
6744 KB |
Output is correct |
97 |
Correct |
2 ms |
6744 KB |
Output is correct |
98 |
Correct |
1 ms |
6744 KB |
Output is correct |
99 |
Correct |
2 ms |
6744 KB |
Output is correct |
100 |
Correct |
2 ms |
6744 KB |
Output is correct |
101 |
Correct |
5 ms |
7256 KB |
Output is correct |
102 |
Correct |
4 ms |
7000 KB |
Output is correct |
103 |
Correct |
50 ms |
15444 KB |
Output is correct |
104 |
Correct |
32 ms |
15180 KB |
Output is correct |
105 |
Correct |
37 ms |
12372 KB |
Output is correct |
106 |
Correct |
38 ms |
15184 KB |
Output is correct |
107 |
Correct |
31 ms |
10576 KB |
Output is correct |
108 |
Correct |
28 ms |
10840 KB |
Output is correct |
109 |
Correct |
21 ms |
10192 KB |
Output is correct |
110 |
Correct |
29 ms |
9840 KB |
Output is correct |
111 |
Correct |
35 ms |
14424 KB |
Output is correct |
112 |
Correct |
36 ms |
13712 KB |
Output is correct |
113 |
Correct |
30 ms |
10576 KB |
Output is correct |
114 |
Correct |
37 ms |
15184 KB |
Output is correct |
115 |
Correct |
33 ms |
15292 KB |
Output is correct |