#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long bit[200005];
void add(int x,int v){
for (int i=x; i<200005; i+=(i&-i)) bit[i]+=v;
}
int query(int x){
int ans=0;
for (int i=x; i; i-=(i&-i)) ans+=bit[i];
return ans;
}
long long count_swaps(vector <int> s){
int n=(s.size()>>1);
long long ans=0;
vector <pair <int,int> > shs[100001];
vector <pair <int,int> > q;
for (int i=0; i<n+n; i++) shs[abs(s[i])].push_back({s[i],i});
for (int i=1; i<100001; i++){
sort(shs[i].begin(),shs[i].end());
int m=(shs[i].size()>>1);
for (int j=0; j<m; j++){
int ff=shs[i][j].second,ss=shs[i][j+m].second;
if (ff>ss){
swap(ff,ss);
ans++;
}
q.push_back({ff+1,ss+1});
}
}
sort(q.begin(),q.end());
for (int i=1; i<=n+n; i++) add(i,1);
for (auto&i:q){
ans+=query(i.second-1)-query(i.first);
add(i.first,-1);
add(i.second,-1);
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2668 KB |
Output is correct |
2 |
Correct |
2 ms |
2668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2668 KB |
Output is correct |
2 |
Correct |
2 ms |
2668 KB |
Output is correct |
3 |
Correct |
2 ms |
2668 KB |
Output is correct |
4 |
Correct |
2 ms |
2668 KB |
Output is correct |
5 |
Correct |
2 ms |
2668 KB |
Output is correct |
6 |
Correct |
2 ms |
2668 KB |
Output is correct |
7 |
Correct |
2 ms |
2668 KB |
Output is correct |
8 |
Correct |
2 ms |
2668 KB |
Output is correct |
9 |
Correct |
2 ms |
2668 KB |
Output is correct |
10 |
Correct |
2 ms |
2668 KB |
Output is correct |
11 |
Correct |
2 ms |
2668 KB |
Output is correct |
12 |
Correct |
2 ms |
2668 KB |
Output is correct |
13 |
Correct |
2 ms |
2668 KB |
Output is correct |
14 |
Correct |
2 ms |
2668 KB |
Output is correct |
15 |
Correct |
2 ms |
2668 KB |
Output is correct |
16 |
Correct |
2 ms |
2668 KB |
Output is correct |
17 |
Correct |
2 ms |
2668 KB |
Output is correct |
18 |
Correct |
2 ms |
2668 KB |
Output is correct |
19 |
Correct |
2 ms |
2668 KB |
Output is correct |
20 |
Correct |
2 ms |
2668 KB |
Output is correct |
21 |
Correct |
2 ms |
2668 KB |
Output is correct |
22 |
Correct |
2 ms |
2668 KB |
Output is correct |
23 |
Correct |
2 ms |
2668 KB |
Output is correct |
24 |
Correct |
2 ms |
2668 KB |
Output is correct |
25 |
Correct |
3 ms |
2668 KB |
Output is correct |
26 |
Correct |
2 ms |
2668 KB |
Output is correct |
27 |
Correct |
2 ms |
2668 KB |
Output is correct |
28 |
Correct |
2 ms |
2668 KB |
Output is correct |
29 |
Correct |
2 ms |
2668 KB |
Output is correct |
30 |
Correct |
2 ms |
2668 KB |
Output is correct |
31 |
Correct |
2 ms |
2668 KB |
Output is correct |
32 |
Correct |
2 ms |
2668 KB |
Output is correct |
33 |
Correct |
2 ms |
2668 KB |
Output is correct |
34 |
Correct |
3 ms |
2668 KB |
Output is correct |
35 |
Correct |
3 ms |
2668 KB |
Output is correct |
36 |
Correct |
2 ms |
2668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2668 KB |
Output is correct |
2 |
Correct |
2 ms |
2668 KB |
Output is correct |
3 |
Correct |
3 ms |
2668 KB |
Output is correct |
4 |
Correct |
2 ms |
2668 KB |
Output is correct |
5 |
Correct |
2 ms |
2668 KB |
Output is correct |
6 |
Correct |
2 ms |
2668 KB |
Output is correct |
7 |
Correct |
2 ms |
2668 KB |
Output is correct |
8 |
Correct |
2 ms |
2668 KB |
Output is correct |
9 |
Correct |
2 ms |
2668 KB |
Output is correct |
10 |
Correct |
2 ms |
2668 KB |
Output is correct |
11 |
Correct |
2 ms |
2540 KB |
Output is correct |
12 |
Correct |
2 ms |
2668 KB |
Output is correct |
13 |
Correct |
2 ms |
2668 KB |
Output is correct |
14 |
Correct |
3 ms |
2668 KB |
Output is correct |
15 |
Correct |
2 ms |
2668 KB |
Output is correct |
16 |
Correct |
3 ms |
2668 KB |
Output is correct |
17 |
Correct |
2 ms |
2668 KB |
Output is correct |
18 |
Correct |
3 ms |
2796 KB |
Output is correct |
19 |
Correct |
3 ms |
2796 KB |
Output is correct |
20 |
Correct |
8 ms |
3304 KB |
Output is correct |
21 |
Correct |
8 ms |
3304 KB |
Output is correct |
22 |
Correct |
62 ms |
9308 KB |
Output is correct |
23 |
Correct |
54 ms |
9180 KB |
Output is correct |
24 |
Correct |
62 ms |
9180 KB |
Output is correct |
25 |
Correct |
47 ms |
9180 KB |
Output is correct |
26 |
Correct |
60 ms |
10460 KB |
Output is correct |
27 |
Correct |
53 ms |
10460 KB |
Output is correct |
28 |
Correct |
50 ms |
10460 KB |
Output is correct |
29 |
Correct |
48 ms |
10460 KB |
Output is correct |
30 |
Correct |
50 ms |
10460 KB |
Output is correct |
31 |
Correct |
61 ms |
10460 KB |
Output is correct |
32 |
Correct |
73 ms |
10460 KB |
Output is correct |
33 |
Correct |
59 ms |
10204 KB |
Output is correct |
34 |
Correct |
49 ms |
10460 KB |
Output is correct |
35 |
Correct |
2 ms |
2668 KB |
Output is correct |
36 |
Correct |
2 ms |
2668 KB |
Output is correct |
37 |
Correct |
50 ms |
10460 KB |
Output is correct |
38 |
Correct |
50 ms |
10460 KB |
Output is correct |
39 |
Correct |
67 ms |
10460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2668 KB |
Output is correct |
2 |
Correct |
3 ms |
2668 KB |
Output is correct |
3 |
Correct |
2 ms |
2668 KB |
Output is correct |
4 |
Correct |
3 ms |
2816 KB |
Output is correct |
5 |
Correct |
75 ms |
9832 KB |
Output is correct |
6 |
Correct |
60 ms |
10464 KB |
Output is correct |
7 |
Correct |
75 ms |
11240 KB |
Output is correct |
8 |
Correct |
54 ms |
10656 KB |
Output is correct |
9 |
Correct |
84 ms |
11112 KB |
Output is correct |
10 |
Correct |
78 ms |
10848 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2668 KB |
Output is correct |
2 |
Correct |
2 ms |
2668 KB |
Output is correct |
3 |
Correct |
2 ms |
2668 KB |
Output is correct |
4 |
Correct |
2 ms |
2668 KB |
Output is correct |
5 |
Correct |
2 ms |
2668 KB |
Output is correct |
6 |
Correct |
2 ms |
2668 KB |
Output is correct |
7 |
Correct |
2 ms |
2668 KB |
Output is correct |
8 |
Correct |
2 ms |
2668 KB |
Output is correct |
9 |
Correct |
2 ms |
2668 KB |
Output is correct |
10 |
Correct |
2 ms |
2668 KB |
Output is correct |
11 |
Correct |
2 ms |
2668 KB |
Output is correct |
12 |
Correct |
2 ms |
2668 KB |
Output is correct |
13 |
Correct |
2 ms |
2668 KB |
Output is correct |
14 |
Correct |
2 ms |
2668 KB |
Output is correct |
15 |
Correct |
2 ms |
2668 KB |
Output is correct |
16 |
Correct |
2 ms |
2668 KB |
Output is correct |
17 |
Correct |
2 ms |
2668 KB |
Output is correct |
18 |
Correct |
2 ms |
2668 KB |
Output is correct |
19 |
Correct |
2 ms |
2668 KB |
Output is correct |
20 |
Correct |
2 ms |
2668 KB |
Output is correct |
21 |
Correct |
2 ms |
2668 KB |
Output is correct |
22 |
Correct |
2 ms |
2668 KB |
Output is correct |
23 |
Correct |
2 ms |
2668 KB |
Output is correct |
24 |
Correct |
2 ms |
2668 KB |
Output is correct |
25 |
Correct |
3 ms |
2668 KB |
Output is correct |
26 |
Correct |
2 ms |
2668 KB |
Output is correct |
27 |
Correct |
2 ms |
2668 KB |
Output is correct |
28 |
Correct |
2 ms |
2668 KB |
Output is correct |
29 |
Correct |
2 ms |
2668 KB |
Output is correct |
30 |
Correct |
2 ms |
2668 KB |
Output is correct |
31 |
Correct |
2 ms |
2668 KB |
Output is correct |
32 |
Correct |
2 ms |
2668 KB |
Output is correct |
33 |
Correct |
2 ms |
2668 KB |
Output is correct |
34 |
Correct |
3 ms |
2668 KB |
Output is correct |
35 |
Correct |
3 ms |
2668 KB |
Output is correct |
36 |
Correct |
2 ms |
2668 KB |
Output is correct |
37 |
Correct |
3 ms |
2668 KB |
Output is correct |
38 |
Correct |
2 ms |
2668 KB |
Output is correct |
39 |
Correct |
2 ms |
2796 KB |
Output is correct |
40 |
Correct |
2 ms |
2668 KB |
Output is correct |
41 |
Correct |
3 ms |
2796 KB |
Output is correct |
42 |
Correct |
3 ms |
2796 KB |
Output is correct |
43 |
Correct |
3 ms |
2796 KB |
Output is correct |
44 |
Correct |
3 ms |
2796 KB |
Output is correct |
45 |
Correct |
3 ms |
2796 KB |
Output is correct |
46 |
Correct |
4 ms |
2796 KB |
Output is correct |
47 |
Correct |
3 ms |
2796 KB |
Output is correct |
48 |
Correct |
3 ms |
2796 KB |
Output is correct |
49 |
Correct |
3 ms |
2796 KB |
Output is correct |
50 |
Correct |
3 ms |
2796 KB |
Output is correct |
51 |
Correct |
3 ms |
2796 KB |
Output is correct |
52 |
Correct |
3 ms |
2796 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2668 KB |
Output is correct |
2 |
Correct |
2 ms |
2668 KB |
Output is correct |
3 |
Correct |
2 ms |
2668 KB |
Output is correct |
4 |
Correct |
2 ms |
2668 KB |
Output is correct |
5 |
Correct |
2 ms |
2668 KB |
Output is correct |
6 |
Correct |
2 ms |
2668 KB |
Output is correct |
7 |
Correct |
2 ms |
2668 KB |
Output is correct |
8 |
Correct |
2 ms |
2668 KB |
Output is correct |
9 |
Correct |
2 ms |
2668 KB |
Output is correct |
10 |
Correct |
2 ms |
2668 KB |
Output is correct |
11 |
Correct |
2 ms |
2668 KB |
Output is correct |
12 |
Correct |
2 ms |
2668 KB |
Output is correct |
13 |
Correct |
2 ms |
2668 KB |
Output is correct |
14 |
Correct |
2 ms |
2668 KB |
Output is correct |
15 |
Correct |
2 ms |
2668 KB |
Output is correct |
16 |
Correct |
2 ms |
2668 KB |
Output is correct |
17 |
Correct |
2 ms |
2668 KB |
Output is correct |
18 |
Correct |
2 ms |
2668 KB |
Output is correct |
19 |
Correct |
2 ms |
2668 KB |
Output is correct |
20 |
Correct |
2 ms |
2668 KB |
Output is correct |
21 |
Correct |
2 ms |
2668 KB |
Output is correct |
22 |
Correct |
2 ms |
2668 KB |
Output is correct |
23 |
Correct |
2 ms |
2668 KB |
Output is correct |
24 |
Correct |
2 ms |
2668 KB |
Output is correct |
25 |
Correct |
3 ms |
2668 KB |
Output is correct |
26 |
Correct |
2 ms |
2668 KB |
Output is correct |
27 |
Correct |
2 ms |
2668 KB |
Output is correct |
28 |
Correct |
2 ms |
2668 KB |
Output is correct |
29 |
Correct |
2 ms |
2668 KB |
Output is correct |
30 |
Correct |
2 ms |
2668 KB |
Output is correct |
31 |
Correct |
2 ms |
2668 KB |
Output is correct |
32 |
Correct |
2 ms |
2668 KB |
Output is correct |
33 |
Correct |
2 ms |
2668 KB |
Output is correct |
34 |
Correct |
3 ms |
2668 KB |
Output is correct |
35 |
Correct |
3 ms |
2668 KB |
Output is correct |
36 |
Correct |
2 ms |
2668 KB |
Output is correct |
37 |
Correct |
3 ms |
2668 KB |
Output is correct |
38 |
Correct |
2 ms |
2668 KB |
Output is correct |
39 |
Correct |
2 ms |
2668 KB |
Output is correct |
40 |
Correct |
2 ms |
2668 KB |
Output is correct |
41 |
Correct |
2 ms |
2668 KB |
Output is correct |
42 |
Correct |
2 ms |
2668 KB |
Output is correct |
43 |
Correct |
2 ms |
2668 KB |
Output is correct |
44 |
Correct |
2 ms |
2668 KB |
Output is correct |
45 |
Correct |
2 ms |
2540 KB |
Output is correct |
46 |
Correct |
2 ms |
2668 KB |
Output is correct |
47 |
Correct |
2 ms |
2668 KB |
Output is correct |
48 |
Correct |
3 ms |
2668 KB |
Output is correct |
49 |
Correct |
2 ms |
2668 KB |
Output is correct |
50 |
Correct |
3 ms |
2668 KB |
Output is correct |
51 |
Correct |
2 ms |
2668 KB |
Output is correct |
52 |
Correct |
3 ms |
2796 KB |
Output is correct |
53 |
Correct |
3 ms |
2796 KB |
Output is correct |
54 |
Correct |
8 ms |
3304 KB |
Output is correct |
55 |
Correct |
8 ms |
3304 KB |
Output is correct |
56 |
Correct |
62 ms |
9308 KB |
Output is correct |
57 |
Correct |
54 ms |
9180 KB |
Output is correct |
58 |
Correct |
62 ms |
9180 KB |
Output is correct |
59 |
Correct |
47 ms |
9180 KB |
Output is correct |
60 |
Correct |
60 ms |
10460 KB |
Output is correct |
61 |
Correct |
53 ms |
10460 KB |
Output is correct |
62 |
Correct |
50 ms |
10460 KB |
Output is correct |
63 |
Correct |
48 ms |
10460 KB |
Output is correct |
64 |
Correct |
50 ms |
10460 KB |
Output is correct |
65 |
Correct |
61 ms |
10460 KB |
Output is correct |
66 |
Correct |
73 ms |
10460 KB |
Output is correct |
67 |
Correct |
59 ms |
10204 KB |
Output is correct |
68 |
Correct |
49 ms |
10460 KB |
Output is correct |
69 |
Correct |
2 ms |
2668 KB |
Output is correct |
70 |
Correct |
2 ms |
2668 KB |
Output is correct |
71 |
Correct |
50 ms |
10460 KB |
Output is correct |
72 |
Correct |
50 ms |
10460 KB |
Output is correct |
73 |
Correct |
67 ms |
10460 KB |
Output is correct |
74 |
Correct |
2 ms |
2668 KB |
Output is correct |
75 |
Correct |
3 ms |
2668 KB |
Output is correct |
76 |
Correct |
2 ms |
2668 KB |
Output is correct |
77 |
Correct |
3 ms |
2816 KB |
Output is correct |
78 |
Correct |
75 ms |
9832 KB |
Output is correct |
79 |
Correct |
60 ms |
10464 KB |
Output is correct |
80 |
Correct |
75 ms |
11240 KB |
Output is correct |
81 |
Correct |
54 ms |
10656 KB |
Output is correct |
82 |
Correct |
84 ms |
11112 KB |
Output is correct |
83 |
Correct |
78 ms |
10848 KB |
Output is correct |
84 |
Correct |
3 ms |
2668 KB |
Output is correct |
85 |
Correct |
2 ms |
2668 KB |
Output is correct |
86 |
Correct |
2 ms |
2796 KB |
Output is correct |
87 |
Correct |
2 ms |
2668 KB |
Output is correct |
88 |
Correct |
3 ms |
2796 KB |
Output is correct |
89 |
Correct |
3 ms |
2796 KB |
Output is correct |
90 |
Correct |
3 ms |
2796 KB |
Output is correct |
91 |
Correct |
3 ms |
2796 KB |
Output is correct |
92 |
Correct |
3 ms |
2796 KB |
Output is correct |
93 |
Correct |
4 ms |
2796 KB |
Output is correct |
94 |
Correct |
3 ms |
2796 KB |
Output is correct |
95 |
Correct |
3 ms |
2796 KB |
Output is correct |
96 |
Correct |
3 ms |
2796 KB |
Output is correct |
97 |
Correct |
3 ms |
2796 KB |
Output is correct |
98 |
Correct |
3 ms |
2796 KB |
Output is correct |
99 |
Correct |
3 ms |
2796 KB |
Output is correct |
100 |
Correct |
3 ms |
2796 KB |
Output is correct |
101 |
Correct |
11 ms |
3564 KB |
Output is correct |
102 |
Correct |
9 ms |
3564 KB |
Output is correct |
103 |
Correct |
94 ms |
11112 KB |
Output is correct |
104 |
Correct |
73 ms |
11112 KB |
Output is correct |
105 |
Correct |
71 ms |
10592 KB |
Output is correct |
106 |
Correct |
75 ms |
11112 KB |
Output is correct |
107 |
Correct |
63 ms |
10336 KB |
Output is correct |
108 |
Correct |
65 ms |
10468 KB |
Output is correct |
109 |
Correct |
55 ms |
10588 KB |
Output is correct |
110 |
Correct |
50 ms |
10460 KB |
Output is correct |
111 |
Correct |
77 ms |
11232 KB |
Output is correct |
112 |
Correct |
85 ms |
11104 KB |
Output is correct |
113 |
Correct |
77 ms |
10464 KB |
Output is correct |
114 |
Correct |
74 ms |
10856 KB |
Output is correct |
115 |
Correct |
75 ms |
11240 KB |
Output is correct |