#include<bits/stdc++.h>
#include "shoes.h"
#define F first
#define S second
#define PB push_back
#define sz(s) (int(s.size()))
#define bit(n, k) (((n)>>(k))&1)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int maxn = 2e5 + 10;
map<int, vector<int> > mp;
bool mark[maxn];
int fn[maxn];
void add(int pos, int x){
for(pos+= 3; pos < maxn; pos+= pos & -pos)
fn[pos]+= x;
}
int ask(int pos){
int ans = 0;
for(pos+= 3; pos > 0; pos-= pos & -pos)
ans+= fn[pos];
return ans;
}
ll count_swaps(vector<int> a){
for(int i = sz(a)-1; i >= 0; i--){
mp[a[i]].PB(i);
}
for(int i = 0; i < sz(a); i++){
add(i, 1);
}
ll ans = 0;
for(int i = 0; i < sz(a); i++){
if(mark[i])
continue;
mp[a[i]].pop_back();
int pos = mp[-a[i]].back();
mp[-a[i]].pop_back();
ans+= a[i] > 0;
ans+= ask(pos) - ask(i) - 1;
mark[i] = 1;
mark[pos] = 1;
add(i, -1);
add(pos, -1);
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
0 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
360 KB |
Output is correct |
14 |
Correct |
1 ms |
360 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
1 ms |
372 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
6 ms |
896 KB |
Output is correct |
21 |
Correct |
6 ms |
896 KB |
Output is correct |
22 |
Correct |
48 ms |
4992 KB |
Output is correct |
23 |
Correct |
46 ms |
5100 KB |
Output is correct |
24 |
Correct |
48 ms |
5012 KB |
Output is correct |
25 |
Correct |
49 ms |
4848 KB |
Output is correct |
26 |
Correct |
47 ms |
5100 KB |
Output is correct |
27 |
Correct |
43 ms |
4972 KB |
Output is correct |
28 |
Correct |
43 ms |
5104 KB |
Output is correct |
29 |
Correct |
59 ms |
5104 KB |
Output is correct |
30 |
Correct |
45 ms |
5104 KB |
Output is correct |
31 |
Correct |
48 ms |
4996 KB |
Output is correct |
32 |
Correct |
43 ms |
4976 KB |
Output is correct |
33 |
Correct |
43 ms |
4848 KB |
Output is correct |
34 |
Correct |
44 ms |
4976 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
46 ms |
4976 KB |
Output is correct |
38 |
Correct |
45 ms |
4984 KB |
Output is correct |
39 |
Correct |
45 ms |
4980 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
354 ms |
25964 KB |
Output is correct |
6 |
Correct |
133 ms |
6904 KB |
Output is correct |
7 |
Correct |
343 ms |
26184 KB |
Output is correct |
8 |
Correct |
49 ms |
5172 KB |
Output is correct |
9 |
Correct |
349 ms |
26104 KB |
Output is correct |
10 |
Correct |
268 ms |
15096 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
0 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
360 KB |
Output is correct |
14 |
Correct |
1 ms |
360 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
1 ms |
372 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
416 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
2 ms |
640 KB |
Output is correct |
42 |
Correct |
2 ms |
640 KB |
Output is correct |
43 |
Correct |
2 ms |
512 KB |
Output is correct |
44 |
Correct |
2 ms |
512 KB |
Output is correct |
45 |
Correct |
2 ms |
512 KB |
Output is correct |
46 |
Correct |
2 ms |
512 KB |
Output is correct |
47 |
Correct |
2 ms |
512 KB |
Output is correct |
48 |
Correct |
2 ms |
384 KB |
Output is correct |
49 |
Correct |
2 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
2 ms |
640 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
0 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
384 KB |
Output is correct |
11 |
Correct |
1 ms |
384 KB |
Output is correct |
12 |
Correct |
1 ms |
384 KB |
Output is correct |
13 |
Correct |
1 ms |
360 KB |
Output is correct |
14 |
Correct |
1 ms |
360 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
1 ms |
384 KB |
Output is correct |
17 |
Correct |
1 ms |
384 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
384 KB |
Output is correct |
20 |
Correct |
1 ms |
372 KB |
Output is correct |
21 |
Correct |
1 ms |
384 KB |
Output is correct |
22 |
Correct |
1 ms |
384 KB |
Output is correct |
23 |
Correct |
1 ms |
384 KB |
Output is correct |
24 |
Correct |
1 ms |
384 KB |
Output is correct |
25 |
Correct |
1 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
1 ms |
384 KB |
Output is correct |
29 |
Correct |
1 ms |
384 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
1 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
1 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
1 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
1 ms |
384 KB |
Output is correct |
41 |
Correct |
1 ms |
384 KB |
Output is correct |
42 |
Correct |
1 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
1 ms |
384 KB |
Output is correct |
45 |
Correct |
1 ms |
384 KB |
Output is correct |
46 |
Correct |
1 ms |
384 KB |
Output is correct |
47 |
Correct |
1 ms |
384 KB |
Output is correct |
48 |
Correct |
1 ms |
384 KB |
Output is correct |
49 |
Correct |
1 ms |
384 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
1 ms |
384 KB |
Output is correct |
52 |
Correct |
1 ms |
384 KB |
Output is correct |
53 |
Correct |
1 ms |
384 KB |
Output is correct |
54 |
Correct |
6 ms |
896 KB |
Output is correct |
55 |
Correct |
6 ms |
896 KB |
Output is correct |
56 |
Correct |
48 ms |
4992 KB |
Output is correct |
57 |
Correct |
46 ms |
5100 KB |
Output is correct |
58 |
Correct |
48 ms |
5012 KB |
Output is correct |
59 |
Correct |
49 ms |
4848 KB |
Output is correct |
60 |
Correct |
47 ms |
5100 KB |
Output is correct |
61 |
Correct |
43 ms |
4972 KB |
Output is correct |
62 |
Correct |
43 ms |
5104 KB |
Output is correct |
63 |
Correct |
59 ms |
5104 KB |
Output is correct |
64 |
Correct |
45 ms |
5104 KB |
Output is correct |
65 |
Correct |
48 ms |
4996 KB |
Output is correct |
66 |
Correct |
43 ms |
4976 KB |
Output is correct |
67 |
Correct |
43 ms |
4848 KB |
Output is correct |
68 |
Correct |
44 ms |
4976 KB |
Output is correct |
69 |
Correct |
1 ms |
384 KB |
Output is correct |
70 |
Correct |
1 ms |
384 KB |
Output is correct |
71 |
Correct |
46 ms |
4976 KB |
Output is correct |
72 |
Correct |
45 ms |
4984 KB |
Output is correct |
73 |
Correct |
45 ms |
4980 KB |
Output is correct |
74 |
Correct |
1 ms |
384 KB |
Output is correct |
75 |
Correct |
1 ms |
384 KB |
Output is correct |
76 |
Correct |
1 ms |
384 KB |
Output is correct |
77 |
Correct |
1 ms |
384 KB |
Output is correct |
78 |
Correct |
354 ms |
25964 KB |
Output is correct |
79 |
Correct |
133 ms |
6904 KB |
Output is correct |
80 |
Correct |
343 ms |
26184 KB |
Output is correct |
81 |
Correct |
49 ms |
5172 KB |
Output is correct |
82 |
Correct |
349 ms |
26104 KB |
Output is correct |
83 |
Correct |
268 ms |
15096 KB |
Output is correct |
84 |
Correct |
1 ms |
416 KB |
Output is correct |
85 |
Correct |
1 ms |
384 KB |
Output is correct |
86 |
Correct |
1 ms |
384 KB |
Output is correct |
87 |
Correct |
1 ms |
384 KB |
Output is correct |
88 |
Correct |
2 ms |
640 KB |
Output is correct |
89 |
Correct |
2 ms |
640 KB |
Output is correct |
90 |
Correct |
2 ms |
512 KB |
Output is correct |
91 |
Correct |
2 ms |
512 KB |
Output is correct |
92 |
Correct |
2 ms |
512 KB |
Output is correct |
93 |
Correct |
2 ms |
512 KB |
Output is correct |
94 |
Correct |
2 ms |
512 KB |
Output is correct |
95 |
Correct |
2 ms |
384 KB |
Output is correct |
96 |
Correct |
2 ms |
384 KB |
Output is correct |
97 |
Correct |
1 ms |
384 KB |
Output is correct |
98 |
Correct |
1 ms |
384 KB |
Output is correct |
99 |
Correct |
2 ms |
640 KB |
Output is correct |
100 |
Correct |
2 ms |
640 KB |
Output is correct |
101 |
Correct |
18 ms |
2688 KB |
Output is correct |
102 |
Correct |
12 ms |
1152 KB |
Output is correct |
103 |
Correct |
438 ms |
25976 KB |
Output is correct |
104 |
Correct |
290 ms |
25976 KB |
Output is correct |
105 |
Correct |
309 ms |
16632 KB |
Output is correct |
106 |
Correct |
349 ms |
25976 KB |
Output is correct |
107 |
Correct |
152 ms |
7672 KB |
Output is correct |
108 |
Correct |
173 ms |
9720 KB |
Output is correct |
109 |
Correct |
47 ms |
5040 KB |
Output is correct |
110 |
Correct |
45 ms |
5104 KB |
Output is correct |
111 |
Correct |
342 ms |
23544 KB |
Output is correct |
112 |
Correct |
380 ms |
21152 KB |
Output is correct |
113 |
Correct |
144 ms |
7672 KB |
Output is correct |
114 |
Correct |
353 ms |
26024 KB |
Output is correct |
115 |
Correct |
351 ms |
25980 KB |
Output is correct |