#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
const int MAXN = 200010;
int bit[MAXN];
void upd(int pos, int val) {
while(pos < MAXN) {
bit[pos] += val;
pos += pos & -pos;
}
}
int get(int pos) {
int ret = 0;
while(pos) {
ret += bit[pos];
pos -= pos & -pos;
}
return ret;
}
bool marked[MAXN];
int arr[MAXN];
vector<int> occurences[2 * MAXN];
long long count_swaps(std::vector<int> s) {
int n = (int)s.size() / 2;
int N = 2 * n;
long long ans = 0;
int pos = 1;
for(int i = 1; i <= N; i++) {
arr[i] = s[i - 1];
}
for(int i = N; i >= 1; i--) {
//printf("hey\n");
occurences[arr[i] + MAXN].push_back(i);
}
for(int _ = 0; _ < n; _++) {
while(marked[pos]) {
//printf("%d\n", pos);
pos += 1;
}
int num = arr[pos];
int target = -num;
int where = occurences[target + MAXN].back();
// printf("%d %d %d %d\n", pos, num, target, where);
marked[pos] = true;
marked[where] = true;
occurences[target + MAXN].pop_back();
occurences[num + MAXN].pop_back();
int cur_pos = where + (get(MAXN - 1) - get(where));
ans += cur_pos - (2 * _ + 2);
if(num > 0) ans += 1;
//printf("ans = %lld\n", ans);
upd(where, 1);
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
9720 KB |
Output is correct |
2 |
Correct |
11 ms |
9720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
9720 KB |
Output is correct |
2 |
Correct |
11 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 |
11 ms |
9720 KB |
Output is correct |
7 |
Correct |
13 ms |
9720 KB |
Output is correct |
8 |
Correct |
13 ms |
9720 KB |
Output is correct |
9 |
Correct |
13 ms |
9720 KB |
Output is correct |
10 |
Correct |
10 ms |
9720 KB |
Output is correct |
11 |
Correct |
11 ms |
9720 KB |
Output is correct |
12 |
Correct |
11 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
11 ms |
9720 KB |
Output is correct |
15 |
Correct |
11 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
11 ms |
9720 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
10 ms |
9720 KB |
Output is correct |
20 |
Correct |
11 ms |
9720 KB |
Output is correct |
21 |
Correct |
10 ms |
9720 KB |
Output is correct |
22 |
Correct |
10 ms |
9720 KB |
Output is correct |
23 |
Correct |
12 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9720 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 |
11 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 |
9720 KB |
Output is correct |
35 |
Correct |
11 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
9720 KB |
Output is correct |
2 |
Correct |
11 ms |
9720 KB |
Output is correct |
3 |
Correct |
11 ms |
9720 KB |
Output is correct |
4 |
Correct |
11 ms |
9692 KB |
Output is correct |
5 |
Correct |
10 ms |
9720 KB |
Output is correct |
6 |
Correct |
11 ms |
9720 KB |
Output is correct |
7 |
Correct |
11 ms |
9848 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
11 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 |
13 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
10 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
11 ms |
9720 KB |
Output is correct |
18 |
Correct |
11 ms |
9848 KB |
Output is correct |
19 |
Correct |
11 ms |
9720 KB |
Output is correct |
20 |
Correct |
15 ms |
10232 KB |
Output is correct |
21 |
Correct |
15 ms |
10232 KB |
Output is correct |
22 |
Correct |
47 ms |
13888 KB |
Output is correct |
23 |
Correct |
43 ms |
14060 KB |
Output is correct |
24 |
Correct |
47 ms |
13972 KB |
Output is correct |
25 |
Correct |
42 ms |
13552 KB |
Output is correct |
26 |
Correct |
47 ms |
14060 KB |
Output is correct |
27 |
Correct |
42 ms |
14060 KB |
Output is correct |
28 |
Correct |
43 ms |
13560 KB |
Output is correct |
29 |
Correct |
44 ms |
13552 KB |
Output is correct |
30 |
Correct |
42 ms |
13552 KB |
Output is correct |
31 |
Correct |
51 ms |
13984 KB |
Output is correct |
32 |
Correct |
46 ms |
13552 KB |
Output is correct |
33 |
Correct |
42 ms |
13684 KB |
Output is correct |
34 |
Correct |
43 ms |
13552 KB |
Output is correct |
35 |
Correct |
10 ms |
9724 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
37 |
Correct |
42 ms |
13648 KB |
Output is correct |
38 |
Correct |
43 ms |
13680 KB |
Output is correct |
39 |
Correct |
42 ms |
13552 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 |
9724 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
81 ms |
18936 KB |
Output is correct |
6 |
Correct |
66 ms |
14200 KB |
Output is correct |
7 |
Correct |
82 ms |
18936 KB |
Output is correct |
8 |
Correct |
49 ms |
13624 KB |
Output is correct |
9 |
Correct |
80 ms |
18936 KB |
Output is correct |
10 |
Correct |
89 ms |
15808 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
9720 KB |
Output is correct |
2 |
Correct |
11 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 |
11 ms |
9720 KB |
Output is correct |
7 |
Correct |
13 ms |
9720 KB |
Output is correct |
8 |
Correct |
13 ms |
9720 KB |
Output is correct |
9 |
Correct |
13 ms |
9720 KB |
Output is correct |
10 |
Correct |
10 ms |
9720 KB |
Output is correct |
11 |
Correct |
11 ms |
9720 KB |
Output is correct |
12 |
Correct |
11 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
11 ms |
9720 KB |
Output is correct |
15 |
Correct |
11 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
11 ms |
9720 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
10 ms |
9720 KB |
Output is correct |
20 |
Correct |
11 ms |
9720 KB |
Output is correct |
21 |
Correct |
10 ms |
9720 KB |
Output is correct |
22 |
Correct |
10 ms |
9720 KB |
Output is correct |
23 |
Correct |
12 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9720 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 |
11 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 |
9720 KB |
Output is correct |
35 |
Correct |
11 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
37 |
Correct |
11 ms |
9724 KB |
Output is correct |
38 |
Correct |
10 ms |
9720 KB |
Output is correct |
39 |
Correct |
10 ms |
9720 KB |
Output is correct |
40 |
Correct |
10 ms |
9848 KB |
Output is correct |
41 |
Correct |
11 ms |
9848 KB |
Output is correct |
42 |
Correct |
13 ms |
9848 KB |
Output is correct |
43 |
Correct |
11 ms |
9848 KB |
Output is correct |
44 |
Correct |
11 ms |
9848 KB |
Output is correct |
45 |
Correct |
11 ms |
9848 KB |
Output is correct |
46 |
Correct |
11 ms |
9848 KB |
Output is correct |
47 |
Correct |
11 ms |
9848 KB |
Output is correct |
48 |
Correct |
11 ms |
9848 KB |
Output is correct |
49 |
Correct |
11 ms |
9720 KB |
Output is correct |
50 |
Correct |
11 ms |
9848 KB |
Output is correct |
51 |
Correct |
11 ms |
9848 KB |
Output is correct |
52 |
Correct |
11 ms |
9848 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
9720 KB |
Output is correct |
2 |
Correct |
11 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 |
11 ms |
9720 KB |
Output is correct |
7 |
Correct |
13 ms |
9720 KB |
Output is correct |
8 |
Correct |
13 ms |
9720 KB |
Output is correct |
9 |
Correct |
13 ms |
9720 KB |
Output is correct |
10 |
Correct |
10 ms |
9720 KB |
Output is correct |
11 |
Correct |
11 ms |
9720 KB |
Output is correct |
12 |
Correct |
11 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
11 ms |
9720 KB |
Output is correct |
15 |
Correct |
11 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
11 ms |
9720 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
10 ms |
9720 KB |
Output is correct |
20 |
Correct |
11 ms |
9720 KB |
Output is correct |
21 |
Correct |
10 ms |
9720 KB |
Output is correct |
22 |
Correct |
10 ms |
9720 KB |
Output is correct |
23 |
Correct |
12 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9720 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 |
11 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 |
9720 KB |
Output is correct |
35 |
Correct |
11 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
37 |
Correct |
11 ms |
9720 KB |
Output is correct |
38 |
Correct |
11 ms |
9692 KB |
Output is correct |
39 |
Correct |
10 ms |
9720 KB |
Output is correct |
40 |
Correct |
11 ms |
9720 KB |
Output is correct |
41 |
Correct |
11 ms |
9848 KB |
Output is correct |
42 |
Correct |
10 ms |
9720 KB |
Output is correct |
43 |
Correct |
11 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 |
13 ms |
9720 KB |
Output is correct |
47 |
Correct |
10 ms |
9720 KB |
Output is correct |
48 |
Correct |
10 ms |
9720 KB |
Output is correct |
49 |
Correct |
10 ms |
9720 KB |
Output is correct |
50 |
Correct |
10 ms |
9720 KB |
Output is correct |
51 |
Correct |
11 ms |
9720 KB |
Output is correct |
52 |
Correct |
11 ms |
9848 KB |
Output is correct |
53 |
Correct |
11 ms |
9720 KB |
Output is correct |
54 |
Correct |
15 ms |
10232 KB |
Output is correct |
55 |
Correct |
15 ms |
10232 KB |
Output is correct |
56 |
Correct |
47 ms |
13888 KB |
Output is correct |
57 |
Correct |
43 ms |
14060 KB |
Output is correct |
58 |
Correct |
47 ms |
13972 KB |
Output is correct |
59 |
Correct |
42 ms |
13552 KB |
Output is correct |
60 |
Correct |
47 ms |
14060 KB |
Output is correct |
61 |
Correct |
42 ms |
14060 KB |
Output is correct |
62 |
Correct |
43 ms |
13560 KB |
Output is correct |
63 |
Correct |
44 ms |
13552 KB |
Output is correct |
64 |
Correct |
42 ms |
13552 KB |
Output is correct |
65 |
Correct |
51 ms |
13984 KB |
Output is correct |
66 |
Correct |
46 ms |
13552 KB |
Output is correct |
67 |
Correct |
42 ms |
13684 KB |
Output is correct |
68 |
Correct |
43 ms |
13552 KB |
Output is correct |
69 |
Correct |
10 ms |
9724 KB |
Output is correct |
70 |
Correct |
10 ms |
9720 KB |
Output is correct |
71 |
Correct |
42 ms |
13648 KB |
Output is correct |
72 |
Correct |
43 ms |
13680 KB |
Output is correct |
73 |
Correct |
42 ms |
13552 KB |
Output is correct |
74 |
Correct |
10 ms |
9720 KB |
Output is correct |
75 |
Correct |
10 ms |
9720 KB |
Output is correct |
76 |
Correct |
10 ms |
9724 KB |
Output is correct |
77 |
Correct |
10 ms |
9720 KB |
Output is correct |
78 |
Correct |
81 ms |
18936 KB |
Output is correct |
79 |
Correct |
66 ms |
14200 KB |
Output is correct |
80 |
Correct |
82 ms |
18936 KB |
Output is correct |
81 |
Correct |
49 ms |
13624 KB |
Output is correct |
82 |
Correct |
80 ms |
18936 KB |
Output is correct |
83 |
Correct |
89 ms |
15808 KB |
Output is correct |
84 |
Correct |
11 ms |
9724 KB |
Output is correct |
85 |
Correct |
10 ms |
9720 KB |
Output is correct |
86 |
Correct |
10 ms |
9720 KB |
Output is correct |
87 |
Correct |
10 ms |
9848 KB |
Output is correct |
88 |
Correct |
11 ms |
9848 KB |
Output is correct |
89 |
Correct |
13 ms |
9848 KB |
Output is correct |
90 |
Correct |
11 ms |
9848 KB |
Output is correct |
91 |
Correct |
11 ms |
9848 KB |
Output is correct |
92 |
Correct |
11 ms |
9848 KB |
Output is correct |
93 |
Correct |
11 ms |
9848 KB |
Output is correct |
94 |
Correct |
11 ms |
9848 KB |
Output is correct |
95 |
Correct |
11 ms |
9848 KB |
Output is correct |
96 |
Correct |
11 ms |
9720 KB |
Output is correct |
97 |
Correct |
11 ms |
9848 KB |
Output is correct |
98 |
Correct |
11 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 |
16 ms |
10616 KB |
Output is correct |
102 |
Correct |
17 ms |
10220 KB |
Output is correct |
103 |
Correct |
115 ms |
19292 KB |
Output is correct |
104 |
Correct |
93 ms |
19320 KB |
Output is correct |
105 |
Correct |
108 ms |
16656 KB |
Output is correct |
106 |
Correct |
85 ms |
18936 KB |
Output is correct |
107 |
Correct |
73 ms |
14712 KB |
Output is correct |
108 |
Correct |
73 ms |
14968 KB |
Output is correct |
109 |
Correct |
44 ms |
13612 KB |
Output is correct |
110 |
Correct |
42 ms |
13552 KB |
Output is correct |
111 |
Correct |
84 ms |
18168 KB |
Output is correct |
112 |
Correct |
103 ms |
17976 KB |
Output is correct |
113 |
Correct |
72 ms |
14236 KB |
Output is correct |
114 |
Correct |
87 ms |
18936 KB |
Output is correct |
115 |
Correct |
85 ms |
18936 KB |
Output is correct |