#include "shoes.h"
#include <bits/stdc++.h>
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define rb(x) ((x)&(-(x)))
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int MAXN = 200055;
struct BIT {
int d[MAXN];
void upd(int x, int r) {
for(x += 5; x < MAXN; x += rb(x))
d[x] += r;
}
int get(int x) {
int r = 0;
for(x += 5; x; x -= rb(x))
r += d[x];
return r;
}
} bit;
vector<int> AV[MAXN], BV[MAXN];
int A[MAXN], B[MAXN];
bitset<MAXN> chk;
ll Ans;
int N;
ll solve() {
for(int i = 0; i < N*2; i++) {
if(A[i] < 0) AV[-A[i]].eb(i);
else BV[A[i]].eb(i);
}
for(int i = 1; i <= N; i++) {
reverse(allv(AV[i]));
reverse(allv(BV[i]));
}
for(int i = 0, x, y, cnt = 0; i < N*2; i++) if(!chk[i]) {
chk[i] = true;
x = A[i];
if(x < 0) {
B[i] = cnt++;
AV[-x].pop_back();
y = BV[-x].back();
BV[-x].pop_back();
B[y] = cnt++;
chk[y] = true;
} else {
B[i] = cnt+1;
BV[x].pop_back();
y = AV[x].back();
AV[x].pop_back();
B[y] = cnt;
cnt += 2;
chk[y] = true;
}
}
for(int i = N*2; i--;) {
Ans += bit.get(B[i]);
bit.upd(B[i], 1);
}
return Ans;
}
long long count_swaps(std::vector<int> s) {
N = sz(s)/2;
for(int i = 0; i < N*2; i++) A[i] = s[i];
return solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
10 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9848 KB |
Output is correct |
10 |
Correct |
10 ms |
9848 KB |
Output is correct |
11 |
Correct |
15 ms |
9720 KB |
Output is correct |
12 |
Correct |
12 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
12 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9848 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
10 ms |
9724 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
10 ms |
9692 KB |
Output is correct |
20 |
Correct |
10 ms |
9692 KB |
Output is correct |
21 |
Correct |
10 ms |
9720 KB |
Output is correct |
22 |
Correct |
10 ms |
9724 KB |
Output is correct |
23 |
Correct |
10 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9848 KB |
Output is correct |
26 |
Correct |
10 ms |
9720 KB |
Output is correct |
27 |
Correct |
10 ms |
9720 KB |
Output is correct |
28 |
Correct |
10 ms |
9720 KB |
Output is correct |
29 |
Correct |
10 ms |
9720 KB |
Output is correct |
30 |
Correct |
10 ms |
9720 KB |
Output is correct |
31 |
Correct |
10 ms |
9720 KB |
Output is correct |
32 |
Correct |
10 ms |
9720 KB |
Output is correct |
33 |
Correct |
10 ms |
9720 KB |
Output is correct |
34 |
Correct |
10 ms |
9848 KB |
Output is correct |
35 |
Correct |
10 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9820 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9848 KB |
Output is correct |
4 |
Correct |
10 ms |
9768 KB |
Output is correct |
5 |
Correct |
10 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9720 KB |
Output is correct |
10 |
Correct |
10 ms |
9720 KB |
Output is correct |
11 |
Correct |
10 ms |
9720 KB |
Output is correct |
12 |
Correct |
10 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
10 ms |
9848 KB |
Output is correct |
15 |
Correct |
10 ms |
9848 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
11 ms |
9980 KB |
Output is correct |
18 |
Correct |
10 ms |
9848 KB |
Output is correct |
19 |
Correct |
11 ms |
9720 KB |
Output is correct |
20 |
Correct |
14 ms |
10232 KB |
Output is correct |
21 |
Correct |
14 ms |
10232 KB |
Output is correct |
22 |
Correct |
52 ms |
14616 KB |
Output is correct |
23 |
Correct |
47 ms |
15980 KB |
Output is correct |
24 |
Correct |
52 ms |
15980 KB |
Output is correct |
25 |
Correct |
46 ms |
15600 KB |
Output is correct |
26 |
Correct |
52 ms |
15980 KB |
Output is correct |
27 |
Correct |
45 ms |
15724 KB |
Output is correct |
28 |
Correct |
47 ms |
15856 KB |
Output is correct |
29 |
Correct |
47 ms |
15852 KB |
Output is correct |
30 |
Correct |
47 ms |
15856 KB |
Output is correct |
31 |
Correct |
52 ms |
15872 KB |
Output is correct |
32 |
Correct |
47 ms |
15856 KB |
Output is correct |
33 |
Correct |
45 ms |
15600 KB |
Output is correct |
34 |
Correct |
47 ms |
15852 KB |
Output is correct |
35 |
Correct |
11 ms |
9848 KB |
Output is correct |
36 |
Correct |
10 ms |
9848 KB |
Output is correct |
37 |
Correct |
47 ms |
15828 KB |
Output is correct |
38 |
Correct |
46 ms |
15856 KB |
Output is correct |
39 |
Correct |
47 ms |
15856 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9724 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
77 ms |
19960 KB |
Output is correct |
6 |
Correct |
67 ms |
16376 KB |
Output is correct |
7 |
Correct |
80 ms |
21112 KB |
Output is correct |
8 |
Correct |
51 ms |
15876 KB |
Output is correct |
9 |
Correct |
82 ms |
21204 KB |
Output is correct |
10 |
Correct |
82 ms |
18116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
10 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9848 KB |
Output is correct |
10 |
Correct |
10 ms |
9848 KB |
Output is correct |
11 |
Correct |
15 ms |
9720 KB |
Output is correct |
12 |
Correct |
12 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
12 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9848 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
10 ms |
9724 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
10 ms |
9692 KB |
Output is correct |
20 |
Correct |
10 ms |
9692 KB |
Output is correct |
21 |
Correct |
10 ms |
9720 KB |
Output is correct |
22 |
Correct |
10 ms |
9724 KB |
Output is correct |
23 |
Correct |
10 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9848 KB |
Output is correct |
26 |
Correct |
10 ms |
9720 KB |
Output is correct |
27 |
Correct |
10 ms |
9720 KB |
Output is correct |
28 |
Correct |
10 ms |
9720 KB |
Output is correct |
29 |
Correct |
10 ms |
9720 KB |
Output is correct |
30 |
Correct |
10 ms |
9720 KB |
Output is correct |
31 |
Correct |
10 ms |
9720 KB |
Output is correct |
32 |
Correct |
10 ms |
9720 KB |
Output is correct |
33 |
Correct |
10 ms |
9720 KB |
Output is correct |
34 |
Correct |
10 ms |
9848 KB |
Output is correct |
35 |
Correct |
10 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9820 KB |
Output is correct |
37 |
Correct |
10 ms |
9720 KB |
Output is correct |
38 |
Correct |
10 ms |
9848 KB |
Output is correct |
39 |
Correct |
10 ms |
9848 KB |
Output is correct |
40 |
Correct |
10 ms |
9720 KB |
Output is correct |
41 |
Correct |
10 ms |
9848 KB |
Output is correct |
42 |
Correct |
10 ms |
9848 KB |
Output is correct |
43 |
Correct |
11 ms |
9848 KB |
Output is correct |
44 |
Correct |
11 ms |
9760 KB |
Output is correct |
45 |
Correct |
10 ms |
9848 KB |
Output is correct |
46 |
Correct |
10 ms |
9848 KB |
Output is correct |
47 |
Correct |
11 ms |
9788 KB |
Output is correct |
48 |
Correct |
10 ms |
9848 KB |
Output is correct |
49 |
Correct |
10 ms |
9848 KB |
Output is correct |
50 |
Correct |
10 ms |
9720 KB |
Output is correct |
51 |
Correct |
10 ms |
9848 KB |
Output is correct |
52 |
Correct |
11 ms |
9848 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
10 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9848 KB |
Output is correct |
10 |
Correct |
10 ms |
9848 KB |
Output is correct |
11 |
Correct |
15 ms |
9720 KB |
Output is correct |
12 |
Correct |
12 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
12 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9848 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
10 ms |
9724 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
10 ms |
9692 KB |
Output is correct |
20 |
Correct |
10 ms |
9692 KB |
Output is correct |
21 |
Correct |
10 ms |
9720 KB |
Output is correct |
22 |
Correct |
10 ms |
9724 KB |
Output is correct |
23 |
Correct |
10 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9848 KB |
Output is correct |
26 |
Correct |
10 ms |
9720 KB |
Output is correct |
27 |
Correct |
10 ms |
9720 KB |
Output is correct |
28 |
Correct |
10 ms |
9720 KB |
Output is correct |
29 |
Correct |
10 ms |
9720 KB |
Output is correct |
30 |
Correct |
10 ms |
9720 KB |
Output is correct |
31 |
Correct |
10 ms |
9720 KB |
Output is correct |
32 |
Correct |
10 ms |
9720 KB |
Output is correct |
33 |
Correct |
10 ms |
9720 KB |
Output is correct |
34 |
Correct |
10 ms |
9848 KB |
Output is correct |
35 |
Correct |
10 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9820 KB |
Output is correct |
37 |
Correct |
10 ms |
9848 KB |
Output is correct |
38 |
Correct |
10 ms |
9768 KB |
Output is correct |
39 |
Correct |
10 ms |
9720 KB |
Output is correct |
40 |
Correct |
10 ms |
9720 KB |
Output is correct |
41 |
Correct |
10 ms |
9720 KB |
Output is correct |
42 |
Correct |
10 ms |
9720 KB |
Output is correct |
43 |
Correct |
10 ms |
9720 KB |
Output is correct |
44 |
Correct |
10 ms |
9720 KB |
Output is correct |
45 |
Correct |
10 ms |
9720 KB |
Output is correct |
46 |
Correct |
10 ms |
9720 KB |
Output is correct |
47 |
Correct |
10 ms |
9720 KB |
Output is correct |
48 |
Correct |
10 ms |
9848 KB |
Output is correct |
49 |
Correct |
10 ms |
9848 KB |
Output is correct |
50 |
Correct |
10 ms |
9720 KB |
Output is correct |
51 |
Correct |
11 ms |
9980 KB |
Output is correct |
52 |
Correct |
10 ms |
9848 KB |
Output is correct |
53 |
Correct |
11 ms |
9720 KB |
Output is correct |
54 |
Correct |
14 ms |
10232 KB |
Output is correct |
55 |
Correct |
14 ms |
10232 KB |
Output is correct |
56 |
Correct |
52 ms |
14616 KB |
Output is correct |
57 |
Correct |
47 ms |
15980 KB |
Output is correct |
58 |
Correct |
52 ms |
15980 KB |
Output is correct |
59 |
Correct |
46 ms |
15600 KB |
Output is correct |
60 |
Correct |
52 ms |
15980 KB |
Output is correct |
61 |
Correct |
45 ms |
15724 KB |
Output is correct |
62 |
Correct |
47 ms |
15856 KB |
Output is correct |
63 |
Correct |
47 ms |
15852 KB |
Output is correct |
64 |
Correct |
47 ms |
15856 KB |
Output is correct |
65 |
Correct |
52 ms |
15872 KB |
Output is correct |
66 |
Correct |
47 ms |
15856 KB |
Output is correct |
67 |
Correct |
45 ms |
15600 KB |
Output is correct |
68 |
Correct |
47 ms |
15852 KB |
Output is correct |
69 |
Correct |
11 ms |
9848 KB |
Output is correct |
70 |
Correct |
10 ms |
9848 KB |
Output is correct |
71 |
Correct |
47 ms |
15828 KB |
Output is correct |
72 |
Correct |
46 ms |
15856 KB |
Output is correct |
73 |
Correct |
47 ms |
15856 KB |
Output is correct |
74 |
Correct |
10 ms |
9720 KB |
Output is correct |
75 |
Correct |
10 ms |
9724 KB |
Output is correct |
76 |
Correct |
10 ms |
9720 KB |
Output is correct |
77 |
Correct |
10 ms |
9720 KB |
Output is correct |
78 |
Correct |
77 ms |
19960 KB |
Output is correct |
79 |
Correct |
67 ms |
16376 KB |
Output is correct |
80 |
Correct |
80 ms |
21112 KB |
Output is correct |
81 |
Correct |
51 ms |
15876 KB |
Output is correct |
82 |
Correct |
82 ms |
21204 KB |
Output is correct |
83 |
Correct |
82 ms |
18116 KB |
Output is correct |
84 |
Correct |
10 ms |
9720 KB |
Output is correct |
85 |
Correct |
10 ms |
9848 KB |
Output is correct |
86 |
Correct |
10 ms |
9848 KB |
Output is correct |
87 |
Correct |
10 ms |
9720 KB |
Output is correct |
88 |
Correct |
10 ms |
9848 KB |
Output is correct |
89 |
Correct |
10 ms |
9848 KB |
Output is correct |
90 |
Correct |
11 ms |
9848 KB |
Output is correct |
91 |
Correct |
11 ms |
9760 KB |
Output is correct |
92 |
Correct |
10 ms |
9848 KB |
Output is correct |
93 |
Correct |
10 ms |
9848 KB |
Output is correct |
94 |
Correct |
11 ms |
9788 KB |
Output is correct |
95 |
Correct |
10 ms |
9848 KB |
Output is correct |
96 |
Correct |
10 ms |
9848 KB |
Output is correct |
97 |
Correct |
10 ms |
9720 KB |
Output is correct |
98 |
Correct |
10 ms |
9848 KB |
Output is correct |
99 |
Correct |
11 ms |
9848 KB |
Output is correct |
100 |
Correct |
11 ms |
9848 KB |
Output is correct |
101 |
Correct |
21 ms |
10744 KB |
Output is correct |
102 |
Correct |
16 ms |
10360 KB |
Output is correct |
103 |
Correct |
98 ms |
21112 KB |
Output is correct |
104 |
Correct |
92 ms |
21104 KB |
Output is correct |
105 |
Correct |
98 ms |
18524 KB |
Output is correct |
106 |
Correct |
81 ms |
21112 KB |
Output is correct |
107 |
Correct |
74 ms |
16632 KB |
Output is correct |
108 |
Correct |
74 ms |
16884 KB |
Output is correct |
109 |
Correct |
47 ms |
16112 KB |
Output is correct |
110 |
Correct |
46 ms |
15800 KB |
Output is correct |
111 |
Correct |
83 ms |
20472 KB |
Output is correct |
112 |
Correct |
91 ms |
19772 KB |
Output is correct |
113 |
Correct |
72 ms |
16504 KB |
Output is correct |
114 |
Correct |
80 ms |
21112 KB |
Output is correct |
115 |
Correct |
81 ms |
21112 KB |
Output is correct |