#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll count_swaps(vector<int> s) {
int n = s.size() / 2;
vector<int> bit(2 * n + 1);
auto add = [&](int p, int v) {
for (int i = p + 1; i <= 2 * n; i += i & -i) {
bit[i] += v;
}
};
auto sum = [&](int p) {
int ans = 0;
for (int i = p; i > 0; i -= i & -i) {
ans += bit[i];
}
return ans;
};
ll ans = 0;
queue<int> a[n + 1][2];
for (int i = 0; i < 2 * n; i++) {
int q = s[i] > 0;
if (s[i] < 0) {
s[i] = -s[i];
}
if (!a[s[i]][!q].empty()) {
int p = a[s[i]][!q].front();
a[s[i]][!q].pop();
ans += (i - p - 1) - (sum(i) - sum(p)) + !q;
add(i, 1);
add(p, -1);
} else {
a[s[i]][q].push(i);
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
296 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
300 KB |
Output is correct |
13 |
Correct |
0 ms |
296 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
300 KB |
Output is correct |
7 |
Correct |
0 ms |
300 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
596 KB |
Output is correct |
18 |
Correct |
1 ms |
1620 KB |
Output is correct |
19 |
Correct |
1 ms |
1620 KB |
Output is correct |
20 |
Correct |
10 ms |
14016 KB |
Output is correct |
21 |
Correct |
11 ms |
14036 KB |
Output is correct |
22 |
Correct |
109 ms |
137664 KB |
Output is correct |
23 |
Correct |
94 ms |
137644 KB |
Output is correct |
24 |
Correct |
101 ms |
137668 KB |
Output is correct |
25 |
Correct |
105 ms |
138028 KB |
Output is correct |
26 |
Correct |
95 ms |
138424 KB |
Output is correct |
27 |
Correct |
105 ms |
138416 KB |
Output is correct |
28 |
Correct |
90 ms |
138956 KB |
Output is correct |
29 |
Correct |
95 ms |
138964 KB |
Output is correct |
30 |
Correct |
94 ms |
138956 KB |
Output is correct |
31 |
Correct |
98 ms |
138544 KB |
Output is correct |
32 |
Correct |
106 ms |
139096 KB |
Output is correct |
33 |
Correct |
93 ms |
138696 KB |
Output is correct |
34 |
Correct |
94 ms |
138880 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
300 KB |
Output is correct |
37 |
Correct |
94 ms |
138944 KB |
Output is correct |
38 |
Correct |
95 ms |
138968 KB |
Output is correct |
39 |
Correct |
93 ms |
138864 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
151 ms |
137660 KB |
Output is correct |
6 |
Correct |
102 ms |
138520 KB |
Output is correct |
7 |
Correct |
126 ms |
138528 KB |
Output is correct |
8 |
Correct |
89 ms |
138940 KB |
Output is correct |
9 |
Correct |
125 ms |
138516 KB |
Output is correct |
10 |
Correct |
109 ms |
138444 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
296 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
300 KB |
Output is correct |
13 |
Correct |
0 ms |
296 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
680 KB |
Output is correct |
41 |
Correct |
1 ms |
1620 KB |
Output is correct |
42 |
Correct |
1 ms |
1620 KB |
Output is correct |
43 |
Correct |
1 ms |
1620 KB |
Output is correct |
44 |
Correct |
1 ms |
1620 KB |
Output is correct |
45 |
Correct |
1 ms |
1592 KB |
Output is correct |
46 |
Correct |
1 ms |
1620 KB |
Output is correct |
47 |
Correct |
1 ms |
1620 KB |
Output is correct |
48 |
Correct |
1 ms |
1620 KB |
Output is correct |
49 |
Correct |
1 ms |
1620 KB |
Output is correct |
50 |
Correct |
2 ms |
1620 KB |
Output is correct |
51 |
Correct |
1 ms |
1620 KB |
Output is correct |
52 |
Correct |
1 ms |
1620 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
296 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
300 KB |
Output is correct |
13 |
Correct |
0 ms |
296 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
300 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
212 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
0 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
0 ms |
300 KB |
Output is correct |
41 |
Correct |
0 ms |
300 KB |
Output is correct |
42 |
Correct |
1 ms |
212 KB |
Output is correct |
43 |
Correct |
1 ms |
212 KB |
Output is correct |
44 |
Correct |
0 ms |
212 KB |
Output is correct |
45 |
Correct |
0 ms |
212 KB |
Output is correct |
46 |
Correct |
1 ms |
212 KB |
Output is correct |
47 |
Correct |
1 ms |
212 KB |
Output is correct |
48 |
Correct |
1 ms |
212 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
1 ms |
340 KB |
Output is correct |
51 |
Correct |
1 ms |
596 KB |
Output is correct |
52 |
Correct |
1 ms |
1620 KB |
Output is correct |
53 |
Correct |
1 ms |
1620 KB |
Output is correct |
54 |
Correct |
10 ms |
14016 KB |
Output is correct |
55 |
Correct |
11 ms |
14036 KB |
Output is correct |
56 |
Correct |
109 ms |
137664 KB |
Output is correct |
57 |
Correct |
94 ms |
137644 KB |
Output is correct |
58 |
Correct |
101 ms |
137668 KB |
Output is correct |
59 |
Correct |
105 ms |
138028 KB |
Output is correct |
60 |
Correct |
95 ms |
138424 KB |
Output is correct |
61 |
Correct |
105 ms |
138416 KB |
Output is correct |
62 |
Correct |
90 ms |
138956 KB |
Output is correct |
63 |
Correct |
95 ms |
138964 KB |
Output is correct |
64 |
Correct |
94 ms |
138956 KB |
Output is correct |
65 |
Correct |
98 ms |
138544 KB |
Output is correct |
66 |
Correct |
106 ms |
139096 KB |
Output is correct |
67 |
Correct |
93 ms |
138696 KB |
Output is correct |
68 |
Correct |
94 ms |
138880 KB |
Output is correct |
69 |
Correct |
1 ms |
212 KB |
Output is correct |
70 |
Correct |
1 ms |
300 KB |
Output is correct |
71 |
Correct |
94 ms |
138944 KB |
Output is correct |
72 |
Correct |
95 ms |
138968 KB |
Output is correct |
73 |
Correct |
93 ms |
138864 KB |
Output is correct |
74 |
Correct |
1 ms |
212 KB |
Output is correct |
75 |
Correct |
0 ms |
212 KB |
Output is correct |
76 |
Correct |
1 ms |
212 KB |
Output is correct |
77 |
Correct |
1 ms |
212 KB |
Output is correct |
78 |
Correct |
151 ms |
137660 KB |
Output is correct |
79 |
Correct |
102 ms |
138520 KB |
Output is correct |
80 |
Correct |
126 ms |
138528 KB |
Output is correct |
81 |
Correct |
89 ms |
138940 KB |
Output is correct |
82 |
Correct |
125 ms |
138516 KB |
Output is correct |
83 |
Correct |
109 ms |
138444 KB |
Output is correct |
84 |
Correct |
1 ms |
212 KB |
Output is correct |
85 |
Correct |
1 ms |
340 KB |
Output is correct |
86 |
Correct |
1 ms |
340 KB |
Output is correct |
87 |
Correct |
1 ms |
680 KB |
Output is correct |
88 |
Correct |
1 ms |
1620 KB |
Output is correct |
89 |
Correct |
1 ms |
1620 KB |
Output is correct |
90 |
Correct |
1 ms |
1620 KB |
Output is correct |
91 |
Correct |
1 ms |
1620 KB |
Output is correct |
92 |
Correct |
1 ms |
1592 KB |
Output is correct |
93 |
Correct |
1 ms |
1620 KB |
Output is correct |
94 |
Correct |
1 ms |
1620 KB |
Output is correct |
95 |
Correct |
1 ms |
1620 KB |
Output is correct |
96 |
Correct |
1 ms |
1620 KB |
Output is correct |
97 |
Correct |
2 ms |
1620 KB |
Output is correct |
98 |
Correct |
1 ms |
1620 KB |
Output is correct |
99 |
Correct |
1 ms |
1620 KB |
Output is correct |
100 |
Correct |
1 ms |
1620 KB |
Output is correct |
101 |
Correct |
11 ms |
14036 KB |
Output is correct |
102 |
Correct |
10 ms |
14036 KB |
Output is correct |
103 |
Correct |
132 ms |
138416 KB |
Output is correct |
104 |
Correct |
125 ms |
138412 KB |
Output is correct |
105 |
Correct |
116 ms |
138528 KB |
Output is correct |
106 |
Correct |
120 ms |
138532 KB |
Output is correct |
107 |
Correct |
121 ms |
138428 KB |
Output is correct |
108 |
Correct |
108 ms |
138532 KB |
Output is correct |
109 |
Correct |
93 ms |
138924 KB |
Output is correct |
110 |
Correct |
93 ms |
138932 KB |
Output is correct |
111 |
Correct |
125 ms |
138520 KB |
Output is correct |
112 |
Correct |
122 ms |
138460 KB |
Output is correct |
113 |
Correct |
104 ms |
138400 KB |
Output is correct |
114 |
Correct |
124 ms |
138436 KB |
Output is correct |
115 |
Correct |
117 ms |
138528 KB |
Output is correct |