#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
int fen[N];
void Add(int idx){
for(; idx < N; idx += idx & (-idx))
fen[idx] ++;
}
int Get(int idx){
int res = 0;
for(; idx; idx -= idx & (-idx))
res += fen[idx];
return res;
}
vector<int> A[N], B[N];
long long count_swaps(std::vector<int> s) {
int n = s.size() / 2;
for(int i = 0; i < n + n; i++)
(s[i] > 0 ? A : B)[abs(s[i])].push_back(i);
vector<int> a(n + n, 0);
for(int i = 0; i <= n; i++)
for(int j = 0; j < (int) A[i].size(); j++)
a[A[i][j]] = a[ B[i][j] ] = min(A[i][j], B[i][j]) + 2;
long long ans = 0;
for(int i = 0; i <= n; i++)
for(int j = 0; j < (int) A[i].size(); j++)
ans += (A[i][j] < B[i][j]);
for(int i = n + n - 1; i >= 0; i--){
// cerr << "! " << a[i] << '\n';
ans += Get(a[i] - 1);
Add(a[i]);
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 2 |
Correct |
5 ms |
9676 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 2 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 3 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 4 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 5 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 6 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 7 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 8 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 9 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 10 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 11 |
Correct |
5 ms |
9668 KB |
Output is correct |
| 12 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 13 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 14 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 15 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 16 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 17 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 18 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 19 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 20 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 21 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 22 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 23 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 24 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 25 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 26 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 27 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 28 |
Correct |
6 ms |
9720 KB |
Output is correct |
| 29 |
Correct |
6 ms |
9708 KB |
Output is correct |
| 30 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 31 |
Correct |
6 ms |
9700 KB |
Output is correct |
| 32 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 33 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 34 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 35 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 36 |
Correct |
5 ms |
9676 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 2 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 3 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 4 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 5 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 6 |
Correct |
5 ms |
9668 KB |
Output is correct |
| 7 |
Correct |
5 ms |
9700 KB |
Output is correct |
| 8 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 9 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 10 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 11 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 12 |
Correct |
6 ms |
9804 KB |
Output is correct |
| 13 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 14 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 15 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 16 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 17 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 18 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 19 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 20 |
Correct |
9 ms |
10060 KB |
Output is correct |
| 21 |
Correct |
9 ms |
10060 KB |
Output is correct |
| 22 |
Correct |
40 ms |
13676 KB |
Output is correct |
| 23 |
Correct |
39 ms |
13800 KB |
Output is correct |
| 24 |
Correct |
41 ms |
13792 KB |
Output is correct |
| 25 |
Correct |
36 ms |
13360 KB |
Output is correct |
| 26 |
Correct |
40 ms |
13752 KB |
Output is correct |
| 27 |
Correct |
38 ms |
13780 KB |
Output is correct |
| 28 |
Correct |
37 ms |
13296 KB |
Output is correct |
| 29 |
Correct |
38 ms |
13252 KB |
Output is correct |
| 30 |
Correct |
37 ms |
13284 KB |
Output is correct |
| 31 |
Correct |
40 ms |
13640 KB |
Output is correct |
| 32 |
Correct |
37 ms |
13244 KB |
Output is correct |
| 33 |
Correct |
38 ms |
13404 KB |
Output is correct |
| 34 |
Correct |
47 ms |
13284 KB |
Output is correct |
| 35 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 36 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 37 |
Correct |
38 ms |
13260 KB |
Output is correct |
| 38 |
Correct |
38 ms |
13244 KB |
Output is correct |
| 39 |
Correct |
38 ms |
13244 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 2 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 3 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 4 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 5 |
Correct |
66 ms |
18656 KB |
Output is correct |
| 6 |
Correct |
48 ms |
13912 KB |
Output is correct |
| 7 |
Correct |
79 ms |
18632 KB |
Output is correct |
| 8 |
Correct |
41 ms |
13312 KB |
Output is correct |
| 9 |
Correct |
64 ms |
18660 KB |
Output is correct |
| 10 |
Correct |
61 ms |
15600 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 2 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 3 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 4 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 5 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 6 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 7 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 8 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 9 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 10 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 11 |
Correct |
5 ms |
9668 KB |
Output is correct |
| 12 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 13 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 14 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 15 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 16 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 17 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 18 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 19 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 20 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 21 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 22 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 23 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 24 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 25 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 26 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 27 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 28 |
Correct |
6 ms |
9720 KB |
Output is correct |
| 29 |
Correct |
6 ms |
9708 KB |
Output is correct |
| 30 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 31 |
Correct |
6 ms |
9700 KB |
Output is correct |
| 32 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 33 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 34 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 35 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 36 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 37 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 38 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 39 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 40 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 41 |
Correct |
6 ms |
9696 KB |
Output is correct |
| 42 |
Correct |
6 ms |
9804 KB |
Output is correct |
| 43 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 44 |
Correct |
8 ms |
9676 KB |
Output is correct |
| 45 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 46 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 47 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 48 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 49 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 50 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 51 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 52 |
Correct |
6 ms |
9804 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 2 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 3 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 4 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 5 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 6 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 7 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 8 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 9 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 10 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 11 |
Correct |
5 ms |
9668 KB |
Output is correct |
| 12 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 13 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 14 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 15 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 16 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 17 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 18 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 19 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 20 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 21 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 22 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 23 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 24 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 25 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 26 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 27 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 28 |
Correct |
6 ms |
9720 KB |
Output is correct |
| 29 |
Correct |
6 ms |
9708 KB |
Output is correct |
| 30 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 31 |
Correct |
6 ms |
9700 KB |
Output is correct |
| 32 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 33 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 34 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 35 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 36 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 37 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 38 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 39 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 40 |
Correct |
5 ms |
9668 KB |
Output is correct |
| 41 |
Correct |
5 ms |
9700 KB |
Output is correct |
| 42 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 43 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 44 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 45 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 46 |
Correct |
6 ms |
9804 KB |
Output is correct |
| 47 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 48 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 49 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 50 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 51 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 52 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 53 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 54 |
Correct |
9 ms |
10060 KB |
Output is correct |
| 55 |
Correct |
9 ms |
10060 KB |
Output is correct |
| 56 |
Correct |
40 ms |
13676 KB |
Output is correct |
| 57 |
Correct |
39 ms |
13800 KB |
Output is correct |
| 58 |
Correct |
41 ms |
13792 KB |
Output is correct |
| 59 |
Correct |
36 ms |
13360 KB |
Output is correct |
| 60 |
Correct |
40 ms |
13752 KB |
Output is correct |
| 61 |
Correct |
38 ms |
13780 KB |
Output is correct |
| 62 |
Correct |
37 ms |
13296 KB |
Output is correct |
| 63 |
Correct |
38 ms |
13252 KB |
Output is correct |
| 64 |
Correct |
37 ms |
13284 KB |
Output is correct |
| 65 |
Correct |
40 ms |
13640 KB |
Output is correct |
| 66 |
Correct |
37 ms |
13244 KB |
Output is correct |
| 67 |
Correct |
38 ms |
13404 KB |
Output is correct |
| 68 |
Correct |
47 ms |
13284 KB |
Output is correct |
| 69 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 70 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 71 |
Correct |
38 ms |
13260 KB |
Output is correct |
| 72 |
Correct |
38 ms |
13244 KB |
Output is correct |
| 73 |
Correct |
38 ms |
13244 KB |
Output is correct |
| 74 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 75 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 76 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 77 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 78 |
Correct |
66 ms |
18656 KB |
Output is correct |
| 79 |
Correct |
48 ms |
13912 KB |
Output is correct |
| 80 |
Correct |
79 ms |
18632 KB |
Output is correct |
| 81 |
Correct |
41 ms |
13312 KB |
Output is correct |
| 82 |
Correct |
64 ms |
18660 KB |
Output is correct |
| 83 |
Correct |
61 ms |
15600 KB |
Output is correct |
| 84 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 85 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 86 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 87 |
Correct |
5 ms |
9676 KB |
Output is correct |
| 88 |
Correct |
6 ms |
9696 KB |
Output is correct |
| 89 |
Correct |
6 ms |
9804 KB |
Output is correct |
| 90 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 91 |
Correct |
8 ms |
9676 KB |
Output is correct |
| 92 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 93 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 94 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 95 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 96 |
Correct |
7 ms |
9676 KB |
Output is correct |
| 97 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 98 |
Correct |
6 ms |
9676 KB |
Output is correct |
| 99 |
Correct |
6 ms |
9804 KB |
Output is correct |
| 100 |
Correct |
6 ms |
9804 KB |
Output is correct |
| 101 |
Correct |
13 ms |
10460 KB |
Output is correct |
| 102 |
Correct |
11 ms |
10188 KB |
Output is correct |
| 103 |
Correct |
76 ms |
19052 KB |
Output is correct |
| 104 |
Correct |
70 ms |
19060 KB |
Output is correct |
| 105 |
Correct |
68 ms |
16376 KB |
Output is correct |
| 106 |
Correct |
65 ms |
18628 KB |
Output is correct |
| 107 |
Correct |
62 ms |
14324 KB |
Output is correct |
| 108 |
Correct |
57 ms |
14684 KB |
Output is correct |
| 109 |
Correct |
37 ms |
13672 KB |
Output is correct |
| 110 |
Correct |
37 ms |
13360 KB |
Output is correct |
| 111 |
Correct |
63 ms |
17996 KB |
Output is correct |
| 112 |
Correct |
80 ms |
17656 KB |
Output is correct |
| 113 |
Correct |
51 ms |
13932 KB |
Output is correct |
| 114 |
Correct |
66 ms |
18628 KB |
Output is correct |
| 115 |
Correct |
66 ms |
18628 KB |
Output is correct |
