//#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(std::vector<int> s) {
{
int cnt = 0;
vector<int> id(s.size());
map<int,vector<int>> mp;
for(int i = int(s.size())-1; i >= 0; i--) mp[s[i]].push_back(i);
for(int i = 0; i < int(s.size()); i++) {
if(id[i]) continue;
int S = abs(s[i]);
int a = mp[S].back(), b = mp[-S].back();
id[b] = ++cnt, id[a] = ++cnt;
mp[S].pop_back(), mp[-S].pop_back();
}
s = id;
}
//for(int x: s) cout << x << ' '; cout << '\n';
std::reverse(s.begin(), s.end());
std::vector<int> BIT(s.size()+1);
auto query = [&BIT](int p){
int res = 0;
for(; p>0; p-=p&-p) res += BIT[p];
return res;
};
auto add = [&BIT](int p){
for(; p<int(BIT.size()); p+=p&-p) ++BIT[p];
};
long long ans = 0;
for(int x: s) ans += query(x-1), add(x);
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
256 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
256 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
256 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
256 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
256 KB |
Output is correct |
12 |
Correct |
6 ms |
512 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
256 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
4 ms |
256 KB |
Output is correct |
21 |
Correct |
5 ms |
256 KB |
Output is correct |
22 |
Correct |
5 ms |
256 KB |
Output is correct |
23 |
Correct |
5 ms |
256 KB |
Output is correct |
24 |
Correct |
5 ms |
256 KB |
Output is correct |
25 |
Correct |
6 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
256 KB |
Output is correct |
27 |
Correct |
5 ms |
256 KB |
Output is correct |
28 |
Correct |
5 ms |
384 KB |
Output is correct |
29 |
Correct |
6 ms |
256 KB |
Output is correct |
30 |
Correct |
5 ms |
384 KB |
Output is correct |
31 |
Correct |
5 ms |
384 KB |
Output is correct |
32 |
Correct |
4 ms |
256 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
34 |
Correct |
5 ms |
256 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
256 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
256 KB |
Output is correct |
4 |
Correct |
5 ms |
256 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
256 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
256 KB |
Output is correct |
9 |
Correct |
5 ms |
256 KB |
Output is correct |
10 |
Correct |
5 ms |
256 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
256 KB |
Output is correct |
13 |
Correct |
5 ms |
256 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
256 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
9 ms |
768 KB |
Output is correct |
21 |
Correct |
9 ms |
768 KB |
Output is correct |
22 |
Correct |
56 ms |
4892 KB |
Output is correct |
23 |
Correct |
44 ms |
4956 KB |
Output is correct |
24 |
Correct |
48 ms |
4896 KB |
Output is correct |
25 |
Correct |
43 ms |
4976 KB |
Output is correct |
26 |
Correct |
47 ms |
4852 KB |
Output is correct |
27 |
Correct |
59 ms |
4724 KB |
Output is correct |
28 |
Correct |
44 ms |
5112 KB |
Output is correct |
29 |
Correct |
43 ms |
5104 KB |
Output is correct |
30 |
Correct |
66 ms |
5104 KB |
Output is correct |
31 |
Correct |
47 ms |
4876 KB |
Output is correct |
32 |
Correct |
44 ms |
5104 KB |
Output is correct |
33 |
Correct |
43 ms |
4976 KB |
Output is correct |
34 |
Correct |
45 ms |
5104 KB |
Output is correct |
35 |
Correct |
4 ms |
256 KB |
Output is correct |
36 |
Correct |
5 ms |
256 KB |
Output is correct |
37 |
Correct |
42 ms |
5104 KB |
Output is correct |
38 |
Correct |
43 ms |
5104 KB |
Output is correct |
39 |
Correct |
43 ms |
5108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
256 KB |
Output is correct |
5 |
Correct |
463 ms |
25848 KB |
Output is correct |
6 |
Correct |
146 ms |
6904 KB |
Output is correct |
7 |
Correct |
397 ms |
25848 KB |
Output is correct |
8 |
Correct |
49 ms |
4920 KB |
Output is correct |
9 |
Correct |
512 ms |
25976 KB |
Output is correct |
10 |
Correct |
310 ms |
14968 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
256 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
256 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
256 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
256 KB |
Output is correct |
12 |
Correct |
6 ms |
512 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
256 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
4 ms |
256 KB |
Output is correct |
21 |
Correct |
5 ms |
256 KB |
Output is correct |
22 |
Correct |
5 ms |
256 KB |
Output is correct |
23 |
Correct |
5 ms |
256 KB |
Output is correct |
24 |
Correct |
5 ms |
256 KB |
Output is correct |
25 |
Correct |
6 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
256 KB |
Output is correct |
27 |
Correct |
5 ms |
256 KB |
Output is correct |
28 |
Correct |
5 ms |
384 KB |
Output is correct |
29 |
Correct |
6 ms |
256 KB |
Output is correct |
30 |
Correct |
5 ms |
384 KB |
Output is correct |
31 |
Correct |
5 ms |
384 KB |
Output is correct |
32 |
Correct |
4 ms |
256 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
34 |
Correct |
5 ms |
256 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
5 ms |
384 KB |
Output is correct |
37 |
Correct |
6 ms |
384 KB |
Output is correct |
38 |
Correct |
4 ms |
256 KB |
Output is correct |
39 |
Correct |
5 ms |
384 KB |
Output is correct |
40 |
Correct |
5 ms |
384 KB |
Output is correct |
41 |
Correct |
6 ms |
640 KB |
Output is correct |
42 |
Correct |
6 ms |
640 KB |
Output is correct |
43 |
Correct |
6 ms |
512 KB |
Output is correct |
44 |
Correct |
7 ms |
512 KB |
Output is correct |
45 |
Correct |
7 ms |
512 KB |
Output is correct |
46 |
Correct |
6 ms |
512 KB |
Output is correct |
47 |
Correct |
6 ms |
384 KB |
Output is correct |
48 |
Correct |
6 ms |
384 KB |
Output is correct |
49 |
Correct |
5 ms |
384 KB |
Output is correct |
50 |
Correct |
5 ms |
384 KB |
Output is correct |
51 |
Correct |
5 ms |
384 KB |
Output is correct |
52 |
Correct |
7 ms |
512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
256 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
256 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
256 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
256 KB |
Output is correct |
12 |
Correct |
6 ms |
512 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
256 KB |
Output is correct |
15 |
Correct |
5 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
256 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
4 ms |
256 KB |
Output is correct |
21 |
Correct |
5 ms |
256 KB |
Output is correct |
22 |
Correct |
5 ms |
256 KB |
Output is correct |
23 |
Correct |
5 ms |
256 KB |
Output is correct |
24 |
Correct |
5 ms |
256 KB |
Output is correct |
25 |
Correct |
6 ms |
384 KB |
Output is correct |
26 |
Correct |
5 ms |
256 KB |
Output is correct |
27 |
Correct |
5 ms |
256 KB |
Output is correct |
28 |
Correct |
5 ms |
384 KB |
Output is correct |
29 |
Correct |
6 ms |
256 KB |
Output is correct |
30 |
Correct |
5 ms |
384 KB |
Output is correct |
31 |
Correct |
5 ms |
384 KB |
Output is correct |
32 |
Correct |
4 ms |
256 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
34 |
Correct |
5 ms |
256 KB |
Output is correct |
35 |
Correct |
5 ms |
384 KB |
Output is correct |
36 |
Correct |
5 ms |
384 KB |
Output is correct |
37 |
Correct |
5 ms |
256 KB |
Output is correct |
38 |
Correct |
5 ms |
256 KB |
Output is correct |
39 |
Correct |
5 ms |
384 KB |
Output is correct |
40 |
Correct |
5 ms |
256 KB |
Output is correct |
41 |
Correct |
5 ms |
384 KB |
Output is correct |
42 |
Correct |
5 ms |
256 KB |
Output is correct |
43 |
Correct |
5 ms |
256 KB |
Output is correct |
44 |
Correct |
5 ms |
256 KB |
Output is correct |
45 |
Correct |
5 ms |
384 KB |
Output is correct |
46 |
Correct |
5 ms |
256 KB |
Output is correct |
47 |
Correct |
5 ms |
256 KB |
Output is correct |
48 |
Correct |
5 ms |
256 KB |
Output is correct |
49 |
Correct |
5 ms |
256 KB |
Output is correct |
50 |
Correct |
5 ms |
256 KB |
Output is correct |
51 |
Correct |
5 ms |
384 KB |
Output is correct |
52 |
Correct |
5 ms |
384 KB |
Output is correct |
53 |
Correct |
5 ms |
384 KB |
Output is correct |
54 |
Correct |
9 ms |
768 KB |
Output is correct |
55 |
Correct |
9 ms |
768 KB |
Output is correct |
56 |
Correct |
56 ms |
4892 KB |
Output is correct |
57 |
Correct |
44 ms |
4956 KB |
Output is correct |
58 |
Correct |
48 ms |
4896 KB |
Output is correct |
59 |
Correct |
43 ms |
4976 KB |
Output is correct |
60 |
Correct |
47 ms |
4852 KB |
Output is correct |
61 |
Correct |
59 ms |
4724 KB |
Output is correct |
62 |
Correct |
44 ms |
5112 KB |
Output is correct |
63 |
Correct |
43 ms |
5104 KB |
Output is correct |
64 |
Correct |
66 ms |
5104 KB |
Output is correct |
65 |
Correct |
47 ms |
4876 KB |
Output is correct |
66 |
Correct |
44 ms |
5104 KB |
Output is correct |
67 |
Correct |
43 ms |
4976 KB |
Output is correct |
68 |
Correct |
45 ms |
5104 KB |
Output is correct |
69 |
Correct |
4 ms |
256 KB |
Output is correct |
70 |
Correct |
5 ms |
256 KB |
Output is correct |
71 |
Correct |
42 ms |
5104 KB |
Output is correct |
72 |
Correct |
43 ms |
5104 KB |
Output is correct |
73 |
Correct |
43 ms |
5108 KB |
Output is correct |
74 |
Correct |
5 ms |
384 KB |
Output is correct |
75 |
Correct |
5 ms |
384 KB |
Output is correct |
76 |
Correct |
5 ms |
384 KB |
Output is correct |
77 |
Correct |
5 ms |
256 KB |
Output is correct |
78 |
Correct |
463 ms |
25848 KB |
Output is correct |
79 |
Correct |
146 ms |
6904 KB |
Output is correct |
80 |
Correct |
397 ms |
25848 KB |
Output is correct |
81 |
Correct |
49 ms |
4920 KB |
Output is correct |
82 |
Correct |
512 ms |
25976 KB |
Output is correct |
83 |
Correct |
310 ms |
14968 KB |
Output is correct |
84 |
Correct |
6 ms |
384 KB |
Output is correct |
85 |
Correct |
4 ms |
256 KB |
Output is correct |
86 |
Correct |
5 ms |
384 KB |
Output is correct |
87 |
Correct |
5 ms |
384 KB |
Output is correct |
88 |
Correct |
6 ms |
640 KB |
Output is correct |
89 |
Correct |
6 ms |
640 KB |
Output is correct |
90 |
Correct |
6 ms |
512 KB |
Output is correct |
91 |
Correct |
7 ms |
512 KB |
Output is correct |
92 |
Correct |
7 ms |
512 KB |
Output is correct |
93 |
Correct |
6 ms |
512 KB |
Output is correct |
94 |
Correct |
6 ms |
384 KB |
Output is correct |
95 |
Correct |
6 ms |
384 KB |
Output is correct |
96 |
Correct |
5 ms |
384 KB |
Output is correct |
97 |
Correct |
5 ms |
384 KB |
Output is correct |
98 |
Correct |
5 ms |
384 KB |
Output is correct |
99 |
Correct |
7 ms |
512 KB |
Output is correct |
100 |
Correct |
6 ms |
640 KB |
Output is correct |
101 |
Correct |
28 ms |
2744 KB |
Output is correct |
102 |
Correct |
17 ms |
1152 KB |
Output is correct |
103 |
Correct |
539 ms |
25896 KB |
Output is correct |
104 |
Correct |
412 ms |
25824 KB |
Output is correct |
105 |
Correct |
372 ms |
16376 KB |
Output is correct |
106 |
Correct |
442 ms |
25848 KB |
Output is correct |
107 |
Correct |
165 ms |
7416 KB |
Output is correct |
108 |
Correct |
198 ms |
9336 KB |
Output is correct |
109 |
Correct |
45 ms |
5232 KB |
Output is correct |
110 |
Correct |
43 ms |
5104 KB |
Output is correct |
111 |
Correct |
417 ms |
23416 KB |
Output is correct |
112 |
Correct |
378 ms |
21112 KB |
Output is correct |
113 |
Correct |
165 ms |
7416 KB |
Output is correct |
114 |
Correct |
412 ms |
25848 KB |
Output is correct |
115 |
Correct |
446 ms |
25848 KB |
Output is correct |