#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
struct fenwickTree {
int n;
vector<int> d;
void add(int i, int x) {
i++;
for( ; i <= n ; i += (i & (-i)))
d[i] += x;
}
int sum(int a) {
a++;
int res = 0;
for( ; a > 0 ; a -= (a & (-a)))
res += d[a];
return res;
}
fenwickTree(int _n) {
n = _n;
d.resize(n + 3, 0);
for(int i = 0 ; i < n ; i++)
add(i, 1);
}
};
int n;
fenwickTree FT(200007);
vector<int> pos[200007];
bool del[200007];
long long count_swaps(std::vector<int> s) {
ll res = 0;
n = s.size() / 2;
for(int i = 0 ; i < 2 * n ; i++)
pos[s[i] + n].push_back(i);
for(int i = 0 ; i< 200007 ; i++)
reverse(pos[i].begin(), pos[i].end());
for(int i = 0 ; i < 2 * n ; i++) {
if(del[i])
continue;
if(s[i] > 0)
res++;
FT.add(i, -1);
int other = pos[-s[i] + n].back();
pos[-s[i] + n].pop_back();
del[other] = del[i] = 1;
pos[s[i] + n].pop_back();
FT.add(other, -1);
res += FT.sum(other);
}
return res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5752 KB |
Output is correct |
2 |
Correct |
10 ms |
5752 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5752 KB |
Output is correct |
2 |
Correct |
10 ms |
5752 KB |
Output is correct |
3 |
Correct |
11 ms |
5852 KB |
Output is correct |
4 |
Correct |
10 ms |
5752 KB |
Output is correct |
5 |
Correct |
11 ms |
5796 KB |
Output is correct |
6 |
Correct |
10 ms |
5752 KB |
Output is correct |
7 |
Correct |
10 ms |
5752 KB |
Output is correct |
8 |
Correct |
10 ms |
5880 KB |
Output is correct |
9 |
Correct |
10 ms |
5752 KB |
Output is correct |
10 |
Correct |
11 ms |
5752 KB |
Output is correct |
11 |
Correct |
12 ms |
5752 KB |
Output is correct |
12 |
Correct |
10 ms |
5880 KB |
Output is correct |
13 |
Correct |
11 ms |
5752 KB |
Output is correct |
14 |
Correct |
11 ms |
5880 KB |
Output is correct |
15 |
Correct |
11 ms |
5928 KB |
Output is correct |
16 |
Correct |
12 ms |
5752 KB |
Output is correct |
17 |
Correct |
12 ms |
5756 KB |
Output is correct |
18 |
Correct |
9 ms |
5752 KB |
Output is correct |
19 |
Correct |
14 ms |
5752 KB |
Output is correct |
20 |
Correct |
12 ms |
5880 KB |
Output is correct |
21 |
Correct |
13 ms |
5880 KB |
Output is correct |
22 |
Correct |
12 ms |
5880 KB |
Output is correct |
23 |
Correct |
13 ms |
5880 KB |
Output is correct |
24 |
Correct |
11 ms |
5752 KB |
Output is correct |
25 |
Correct |
11 ms |
5880 KB |
Output is correct |
26 |
Correct |
10 ms |
5880 KB |
Output is correct |
27 |
Correct |
11 ms |
5880 KB |
Output is correct |
28 |
Correct |
10 ms |
5752 KB |
Output is correct |
29 |
Correct |
10 ms |
5752 KB |
Output is correct |
30 |
Correct |
11 ms |
5852 KB |
Output is correct |
31 |
Correct |
10 ms |
5880 KB |
Output is correct |
32 |
Correct |
23 ms |
5752 KB |
Output is correct |
33 |
Correct |
12 ms |
5752 KB |
Output is correct |
34 |
Correct |
11 ms |
5896 KB |
Output is correct |
35 |
Correct |
11 ms |
5880 KB |
Output is correct |
36 |
Correct |
10 ms |
5752 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5752 KB |
Output is correct |
2 |
Correct |
10 ms |
5752 KB |
Output is correct |
3 |
Correct |
10 ms |
5752 KB |
Output is correct |
4 |
Correct |
10 ms |
5880 KB |
Output is correct |
5 |
Correct |
10 ms |
5756 KB |
Output is correct |
6 |
Correct |
10 ms |
5752 KB |
Output is correct |
7 |
Correct |
10 ms |
5752 KB |
Output is correct |
8 |
Correct |
10 ms |
5752 KB |
Output is correct |
9 |
Correct |
10 ms |
5880 KB |
Output is correct |
10 |
Correct |
11 ms |
5880 KB |
Output is correct |
11 |
Correct |
10 ms |
5756 KB |
Output is correct |
12 |
Correct |
10 ms |
5852 KB |
Output is correct |
13 |
Correct |
10 ms |
5880 KB |
Output is correct |
14 |
Correct |
10 ms |
5880 KB |
Output is correct |
15 |
Correct |
10 ms |
5880 KB |
Output is correct |
16 |
Correct |
11 ms |
5880 KB |
Output is correct |
17 |
Correct |
10 ms |
5752 KB |
Output is correct |
18 |
Correct |
11 ms |
5880 KB |
Output is correct |
19 |
Correct |
10 ms |
5880 KB |
Output is correct |
20 |
Correct |
16 ms |
6264 KB |
Output is correct |
21 |
Correct |
14 ms |
6264 KB |
Output is correct |
22 |
Correct |
47 ms |
9752 KB |
Output is correct |
23 |
Correct |
43 ms |
9836 KB |
Output is correct |
24 |
Correct |
48 ms |
9964 KB |
Output is correct |
25 |
Correct |
50 ms |
9688 KB |
Output is correct |
26 |
Correct |
48 ms |
9844 KB |
Output is correct |
27 |
Correct |
44 ms |
9580 KB |
Output is correct |
28 |
Correct |
45 ms |
9840 KB |
Output is correct |
29 |
Correct |
44 ms |
9840 KB |
Output is correct |
30 |
Correct |
44 ms |
9840 KB |
Output is correct |
31 |
Correct |
47 ms |
9728 KB |
Output is correct |
32 |
Correct |
45 ms |
9780 KB |
Output is correct |
33 |
Correct |
44 ms |
9584 KB |
Output is correct |
34 |
Correct |
44 ms |
9840 KB |
Output is correct |
35 |
Correct |
11 ms |
5752 KB |
Output is correct |
36 |
Correct |
11 ms |
5892 KB |
Output is correct |
37 |
Correct |
45 ms |
9840 KB |
Output is correct |
38 |
Correct |
44 ms |
9840 KB |
Output is correct |
39 |
Correct |
45 ms |
9848 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5752 KB |
Output is correct |
2 |
Correct |
11 ms |
5824 KB |
Output is correct |
3 |
Correct |
12 ms |
5752 KB |
Output is correct |
4 |
Correct |
11 ms |
5880 KB |
Output is correct |
5 |
Correct |
83 ms |
15196 KB |
Output is correct |
6 |
Correct |
66 ms |
10232 KB |
Output is correct |
7 |
Correct |
84 ms |
15104 KB |
Output is correct |
8 |
Correct |
48 ms |
9732 KB |
Output is correct |
9 |
Correct |
76 ms |
15100 KB |
Output is correct |
10 |
Correct |
83 ms |
12024 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5752 KB |
Output is correct |
2 |
Correct |
10 ms |
5752 KB |
Output is correct |
3 |
Correct |
11 ms |
5852 KB |
Output is correct |
4 |
Correct |
10 ms |
5752 KB |
Output is correct |
5 |
Correct |
11 ms |
5796 KB |
Output is correct |
6 |
Correct |
10 ms |
5752 KB |
Output is correct |
7 |
Correct |
10 ms |
5752 KB |
Output is correct |
8 |
Correct |
10 ms |
5880 KB |
Output is correct |
9 |
Correct |
10 ms |
5752 KB |
Output is correct |
10 |
Correct |
11 ms |
5752 KB |
Output is correct |
11 |
Correct |
12 ms |
5752 KB |
Output is correct |
12 |
Correct |
10 ms |
5880 KB |
Output is correct |
13 |
Correct |
11 ms |
5752 KB |
Output is correct |
14 |
Correct |
11 ms |
5880 KB |
Output is correct |
15 |
Correct |
11 ms |
5928 KB |
Output is correct |
16 |
Correct |
12 ms |
5752 KB |
Output is correct |
17 |
Correct |
12 ms |
5756 KB |
Output is correct |
18 |
Correct |
9 ms |
5752 KB |
Output is correct |
19 |
Correct |
14 ms |
5752 KB |
Output is correct |
20 |
Correct |
12 ms |
5880 KB |
Output is correct |
21 |
Correct |
13 ms |
5880 KB |
Output is correct |
22 |
Correct |
12 ms |
5880 KB |
Output is correct |
23 |
Correct |
13 ms |
5880 KB |
Output is correct |
24 |
Correct |
11 ms |
5752 KB |
Output is correct |
25 |
Correct |
11 ms |
5880 KB |
Output is correct |
26 |
Correct |
10 ms |
5880 KB |
Output is correct |
27 |
Correct |
11 ms |
5880 KB |
Output is correct |
28 |
Correct |
10 ms |
5752 KB |
Output is correct |
29 |
Correct |
10 ms |
5752 KB |
Output is correct |
30 |
Correct |
11 ms |
5852 KB |
Output is correct |
31 |
Correct |
10 ms |
5880 KB |
Output is correct |
32 |
Correct |
23 ms |
5752 KB |
Output is correct |
33 |
Correct |
12 ms |
5752 KB |
Output is correct |
34 |
Correct |
11 ms |
5896 KB |
Output is correct |
35 |
Correct |
11 ms |
5880 KB |
Output is correct |
36 |
Correct |
10 ms |
5752 KB |
Output is correct |
37 |
Correct |
10 ms |
5752 KB |
Output is correct |
38 |
Correct |
11 ms |
5752 KB |
Output is correct |
39 |
Correct |
11 ms |
5752 KB |
Output is correct |
40 |
Correct |
11 ms |
5752 KB |
Output is correct |
41 |
Correct |
11 ms |
5884 KB |
Output is correct |
42 |
Correct |
11 ms |
5880 KB |
Output is correct |
43 |
Correct |
11 ms |
5852 KB |
Output is correct |
44 |
Correct |
11 ms |
5880 KB |
Output is correct |
45 |
Correct |
11 ms |
5908 KB |
Output is correct |
46 |
Correct |
11 ms |
5880 KB |
Output is correct |
47 |
Correct |
11 ms |
5880 KB |
Output is correct |
48 |
Correct |
12 ms |
5880 KB |
Output is correct |
49 |
Correct |
11 ms |
5880 KB |
Output is correct |
50 |
Correct |
12 ms |
5880 KB |
Output is correct |
51 |
Correct |
11 ms |
5880 KB |
Output is correct |
52 |
Correct |
11 ms |
5880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
5752 KB |
Output is correct |
2 |
Correct |
10 ms |
5752 KB |
Output is correct |
3 |
Correct |
11 ms |
5852 KB |
Output is correct |
4 |
Correct |
10 ms |
5752 KB |
Output is correct |
5 |
Correct |
11 ms |
5796 KB |
Output is correct |
6 |
Correct |
10 ms |
5752 KB |
Output is correct |
7 |
Correct |
10 ms |
5752 KB |
Output is correct |
8 |
Correct |
10 ms |
5880 KB |
Output is correct |
9 |
Correct |
10 ms |
5752 KB |
Output is correct |
10 |
Correct |
11 ms |
5752 KB |
Output is correct |
11 |
Correct |
12 ms |
5752 KB |
Output is correct |
12 |
Correct |
10 ms |
5880 KB |
Output is correct |
13 |
Correct |
11 ms |
5752 KB |
Output is correct |
14 |
Correct |
11 ms |
5880 KB |
Output is correct |
15 |
Correct |
11 ms |
5928 KB |
Output is correct |
16 |
Correct |
12 ms |
5752 KB |
Output is correct |
17 |
Correct |
12 ms |
5756 KB |
Output is correct |
18 |
Correct |
9 ms |
5752 KB |
Output is correct |
19 |
Correct |
14 ms |
5752 KB |
Output is correct |
20 |
Correct |
12 ms |
5880 KB |
Output is correct |
21 |
Correct |
13 ms |
5880 KB |
Output is correct |
22 |
Correct |
12 ms |
5880 KB |
Output is correct |
23 |
Correct |
13 ms |
5880 KB |
Output is correct |
24 |
Correct |
11 ms |
5752 KB |
Output is correct |
25 |
Correct |
11 ms |
5880 KB |
Output is correct |
26 |
Correct |
10 ms |
5880 KB |
Output is correct |
27 |
Correct |
11 ms |
5880 KB |
Output is correct |
28 |
Correct |
10 ms |
5752 KB |
Output is correct |
29 |
Correct |
10 ms |
5752 KB |
Output is correct |
30 |
Correct |
11 ms |
5852 KB |
Output is correct |
31 |
Correct |
10 ms |
5880 KB |
Output is correct |
32 |
Correct |
23 ms |
5752 KB |
Output is correct |
33 |
Correct |
12 ms |
5752 KB |
Output is correct |
34 |
Correct |
11 ms |
5896 KB |
Output is correct |
35 |
Correct |
11 ms |
5880 KB |
Output is correct |
36 |
Correct |
10 ms |
5752 KB |
Output is correct |
37 |
Correct |
10 ms |
5752 KB |
Output is correct |
38 |
Correct |
10 ms |
5880 KB |
Output is correct |
39 |
Correct |
10 ms |
5756 KB |
Output is correct |
40 |
Correct |
10 ms |
5752 KB |
Output is correct |
41 |
Correct |
10 ms |
5752 KB |
Output is correct |
42 |
Correct |
10 ms |
5752 KB |
Output is correct |
43 |
Correct |
10 ms |
5880 KB |
Output is correct |
44 |
Correct |
11 ms |
5880 KB |
Output is correct |
45 |
Correct |
10 ms |
5756 KB |
Output is correct |
46 |
Correct |
10 ms |
5852 KB |
Output is correct |
47 |
Correct |
10 ms |
5880 KB |
Output is correct |
48 |
Correct |
10 ms |
5880 KB |
Output is correct |
49 |
Correct |
10 ms |
5880 KB |
Output is correct |
50 |
Correct |
11 ms |
5880 KB |
Output is correct |
51 |
Correct |
10 ms |
5752 KB |
Output is correct |
52 |
Correct |
11 ms |
5880 KB |
Output is correct |
53 |
Correct |
10 ms |
5880 KB |
Output is correct |
54 |
Correct |
16 ms |
6264 KB |
Output is correct |
55 |
Correct |
14 ms |
6264 KB |
Output is correct |
56 |
Correct |
47 ms |
9752 KB |
Output is correct |
57 |
Correct |
43 ms |
9836 KB |
Output is correct |
58 |
Correct |
48 ms |
9964 KB |
Output is correct |
59 |
Correct |
50 ms |
9688 KB |
Output is correct |
60 |
Correct |
48 ms |
9844 KB |
Output is correct |
61 |
Correct |
44 ms |
9580 KB |
Output is correct |
62 |
Correct |
45 ms |
9840 KB |
Output is correct |
63 |
Correct |
44 ms |
9840 KB |
Output is correct |
64 |
Correct |
44 ms |
9840 KB |
Output is correct |
65 |
Correct |
47 ms |
9728 KB |
Output is correct |
66 |
Correct |
45 ms |
9780 KB |
Output is correct |
67 |
Correct |
44 ms |
9584 KB |
Output is correct |
68 |
Correct |
44 ms |
9840 KB |
Output is correct |
69 |
Correct |
11 ms |
5752 KB |
Output is correct |
70 |
Correct |
11 ms |
5892 KB |
Output is correct |
71 |
Correct |
45 ms |
9840 KB |
Output is correct |
72 |
Correct |
44 ms |
9840 KB |
Output is correct |
73 |
Correct |
45 ms |
9848 KB |
Output is correct |
74 |
Correct |
10 ms |
5752 KB |
Output is correct |
75 |
Correct |
11 ms |
5824 KB |
Output is correct |
76 |
Correct |
12 ms |
5752 KB |
Output is correct |
77 |
Correct |
11 ms |
5880 KB |
Output is correct |
78 |
Correct |
83 ms |
15196 KB |
Output is correct |
79 |
Correct |
66 ms |
10232 KB |
Output is correct |
80 |
Correct |
84 ms |
15104 KB |
Output is correct |
81 |
Correct |
48 ms |
9732 KB |
Output is correct |
82 |
Correct |
76 ms |
15100 KB |
Output is correct |
83 |
Correct |
83 ms |
12024 KB |
Output is correct |
84 |
Correct |
10 ms |
5752 KB |
Output is correct |
85 |
Correct |
11 ms |
5752 KB |
Output is correct |
86 |
Correct |
11 ms |
5752 KB |
Output is correct |
87 |
Correct |
11 ms |
5752 KB |
Output is correct |
88 |
Correct |
11 ms |
5884 KB |
Output is correct |
89 |
Correct |
11 ms |
5880 KB |
Output is correct |
90 |
Correct |
11 ms |
5852 KB |
Output is correct |
91 |
Correct |
11 ms |
5880 KB |
Output is correct |
92 |
Correct |
11 ms |
5908 KB |
Output is correct |
93 |
Correct |
11 ms |
5880 KB |
Output is correct |
94 |
Correct |
11 ms |
5880 KB |
Output is correct |
95 |
Correct |
12 ms |
5880 KB |
Output is correct |
96 |
Correct |
11 ms |
5880 KB |
Output is correct |
97 |
Correct |
12 ms |
5880 KB |
Output is correct |
98 |
Correct |
11 ms |
5880 KB |
Output is correct |
99 |
Correct |
11 ms |
5880 KB |
Output is correct |
100 |
Correct |
11 ms |
5880 KB |
Output is correct |
101 |
Correct |
17 ms |
6648 KB |
Output is correct |
102 |
Correct |
17 ms |
6264 KB |
Output is correct |
103 |
Correct |
105 ms |
15096 KB |
Output is correct |
104 |
Correct |
97 ms |
15112 KB |
Output is correct |
105 |
Correct |
105 ms |
12324 KB |
Output is correct |
106 |
Correct |
88 ms |
15096 KB |
Output is correct |
107 |
Correct |
80 ms |
10576 KB |
Output is correct |
108 |
Correct |
77 ms |
10872 KB |
Output is correct |
109 |
Correct |
47 ms |
10068 KB |
Output is correct |
110 |
Correct |
45 ms |
9968 KB |
Output is correct |
111 |
Correct |
90 ms |
14456 KB |
Output is correct |
112 |
Correct |
107 ms |
13880 KB |
Output is correct |
113 |
Correct |
72 ms |
10468 KB |
Output is correct |
114 |
Correct |
90 ms |
15096 KB |
Output is correct |
115 |
Correct |
84 ms |
15104 KB |
Output is correct |