#include "shoes.h"
#include<bits/stdc++.h>
using namespace std ;
#define ll long long
const int N = 2e5 + 2 ;
deque<int>pos[N];
struct BIT {
vector<ll> v;
int sz;
explicit BIT(int n) {
v.resize(n);
sz = n;
}
//gets sum of range [0, i]
ll get(int i) {
ll ret = 0;
for (++i; i; i -= i & -i)
ret += v[i - 1];
return ret;
}
void update(int i, ll x) {
for (++i; i <= sz; i += i & -i)
v[i - 1] += x;
}
ll query(int st, int en) {
return get(en) - get(st - 1);
}
};
int finish[N * 4];
long long count_swaps(vector<int> v) {
int n = v.size() / 2;
for(int i = 0 ; i < n * 2; i ++){
pos[n + v[i]].push_back(i);
}
long long ans = 0 ;
BIT bit (n * 2);
for(int i = 0 ;i < n * 2 ; i ++ ){
if(finish[i])continue ;
int ab = -v[i] , p = pos[ab + n].front();
finish[p]++;
pos[ab + n].pop_front();
pos[v[i] + n].pop_front();
int betwen = bit.query(i , p );
ans += p - i - 1 - betwen + (v[i] > 0 ? 1 : 0);
bit.update(p , 1 );
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
104 ms |
134904 KB |
Output is correct |
2 |
Correct |
103 ms |
135032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
104 ms |
134904 KB |
Output is correct |
2 |
Correct |
103 ms |
135032 KB |
Output is correct |
3 |
Correct |
102 ms |
134904 KB |
Output is correct |
4 |
Correct |
102 ms |
134904 KB |
Output is correct |
5 |
Correct |
104 ms |
135032 KB |
Output is correct |
6 |
Correct |
101 ms |
134904 KB |
Output is correct |
7 |
Correct |
100 ms |
134904 KB |
Output is correct |
8 |
Correct |
102 ms |
134976 KB |
Output is correct |
9 |
Correct |
101 ms |
134904 KB |
Output is correct |
10 |
Correct |
103 ms |
134988 KB |
Output is correct |
11 |
Correct |
101 ms |
134948 KB |
Output is correct |
12 |
Correct |
102 ms |
134904 KB |
Output is correct |
13 |
Correct |
102 ms |
134904 KB |
Output is correct |
14 |
Correct |
103 ms |
134904 KB |
Output is correct |
15 |
Correct |
103 ms |
134904 KB |
Output is correct |
16 |
Correct |
101 ms |
134904 KB |
Output is correct |
17 |
Correct |
102 ms |
134904 KB |
Output is correct |
18 |
Correct |
104 ms |
134904 KB |
Output is correct |
19 |
Correct |
104 ms |
134904 KB |
Output is correct |
20 |
Correct |
106 ms |
134904 KB |
Output is correct |
21 |
Correct |
102 ms |
134880 KB |
Output is correct |
22 |
Correct |
103 ms |
135032 KB |
Output is correct |
23 |
Correct |
105 ms |
134904 KB |
Output is correct |
24 |
Correct |
105 ms |
134908 KB |
Output is correct |
25 |
Correct |
102 ms |
134904 KB |
Output is correct |
26 |
Correct |
102 ms |
134904 KB |
Output is correct |
27 |
Correct |
100 ms |
134908 KB |
Output is correct |
28 |
Correct |
100 ms |
134904 KB |
Output is correct |
29 |
Correct |
102 ms |
134904 KB |
Output is correct |
30 |
Correct |
105 ms |
134904 KB |
Output is correct |
31 |
Correct |
106 ms |
134904 KB |
Output is correct |
32 |
Correct |
104 ms |
134904 KB |
Output is correct |
33 |
Correct |
103 ms |
134904 KB |
Output is correct |
34 |
Correct |
104 ms |
134904 KB |
Output is correct |
35 |
Correct |
101 ms |
134968 KB |
Output is correct |
36 |
Correct |
101 ms |
134904 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
104 ms |
134904 KB |
Output is correct |
2 |
Correct |
103 ms |
135032 KB |
Output is correct |
3 |
Correct |
103 ms |
134904 KB |
Output is correct |
4 |
Correct |
103 ms |
134904 KB |
Output is correct |
5 |
Correct |
104 ms |
134904 KB |
Output is correct |
6 |
Correct |
104 ms |
134904 KB |
Output is correct |
7 |
Correct |
103 ms |
134944 KB |
Output is correct |
8 |
Correct |
101 ms |
134904 KB |
Output is correct |
9 |
Correct |
101 ms |
134904 KB |
Output is correct |
10 |
Correct |
104 ms |
134952 KB |
Output is correct |
11 |
Correct |
102 ms |
134904 KB |
Output is correct |
12 |
Correct |
102 ms |
134904 KB |
Output is correct |
13 |
Correct |
101 ms |
134904 KB |
Output is correct |
14 |
Correct |
102 ms |
134992 KB |
Output is correct |
15 |
Correct |
102 ms |
134908 KB |
Output is correct |
16 |
Correct |
102 ms |
134904 KB |
Output is correct |
17 |
Correct |
110 ms |
134904 KB |
Output is correct |
18 |
Correct |
111 ms |
135032 KB |
Output is correct |
19 |
Correct |
111 ms |
135032 KB |
Output is correct |
20 |
Correct |
114 ms |
135544 KB |
Output is correct |
21 |
Correct |
115 ms |
135544 KB |
Output is correct |
22 |
Correct |
163 ms |
141048 KB |
Output is correct |
23 |
Correct |
143 ms |
140920 KB |
Output is correct |
24 |
Correct |
144 ms |
141020 KB |
Output is correct |
25 |
Correct |
138 ms |
140408 KB |
Output is correct |
26 |
Correct |
148 ms |
140920 KB |
Output is correct |
27 |
Correct |
143 ms |
140792 KB |
Output is correct |
28 |
Correct |
144 ms |
140536 KB |
Output is correct |
29 |
Correct |
140 ms |
140584 KB |
Output is correct |
30 |
Correct |
151 ms |
140536 KB |
Output is correct |
31 |
Correct |
153 ms |
140920 KB |
Output is correct |
32 |
Correct |
151 ms |
140536 KB |
Output is correct |
33 |
Correct |
143 ms |
140408 KB |
Output is correct |
34 |
Correct |
145 ms |
140536 KB |
Output is correct |
35 |
Correct |
103 ms |
134904 KB |
Output is correct |
36 |
Correct |
104 ms |
134904 KB |
Output is correct |
37 |
Correct |
143 ms |
140536 KB |
Output is correct |
38 |
Correct |
144 ms |
140536 KB |
Output is correct |
39 |
Correct |
146 ms |
140664 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
101 ms |
134904 KB |
Output is correct |
2 |
Correct |
101 ms |
134904 KB |
Output is correct |
3 |
Correct |
103 ms |
134932 KB |
Output is correct |
4 |
Correct |
103 ms |
134904 KB |
Output is correct |
5 |
Correct |
193 ms |
138488 KB |
Output is correct |
6 |
Correct |
162 ms |
138488 KB |
Output is correct |
7 |
Correct |
191 ms |
138508 KB |
Output is correct |
8 |
Correct |
144 ms |
139384 KB |
Output is correct |
9 |
Correct |
190 ms |
138488 KB |
Output is correct |
10 |
Correct |
184 ms |
138508 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
104 ms |
134904 KB |
Output is correct |
2 |
Correct |
103 ms |
135032 KB |
Output is correct |
3 |
Correct |
102 ms |
134904 KB |
Output is correct |
4 |
Correct |
102 ms |
134904 KB |
Output is correct |
5 |
Correct |
104 ms |
135032 KB |
Output is correct |
6 |
Correct |
101 ms |
134904 KB |
Output is correct |
7 |
Correct |
100 ms |
134904 KB |
Output is correct |
8 |
Correct |
102 ms |
134976 KB |
Output is correct |
9 |
Correct |
101 ms |
134904 KB |
Output is correct |
10 |
Correct |
103 ms |
134988 KB |
Output is correct |
11 |
Correct |
101 ms |
134948 KB |
Output is correct |
12 |
Correct |
102 ms |
134904 KB |
Output is correct |
13 |
Correct |
102 ms |
134904 KB |
Output is correct |
14 |
Correct |
103 ms |
134904 KB |
Output is correct |
15 |
Correct |
103 ms |
134904 KB |
Output is correct |
16 |
Correct |
101 ms |
134904 KB |
Output is correct |
17 |
Correct |
102 ms |
134904 KB |
Output is correct |
18 |
Correct |
104 ms |
134904 KB |
Output is correct |
19 |
Correct |
104 ms |
134904 KB |
Output is correct |
20 |
Correct |
106 ms |
134904 KB |
Output is correct |
21 |
Correct |
102 ms |
134880 KB |
Output is correct |
22 |
Correct |
103 ms |
135032 KB |
Output is correct |
23 |
Correct |
105 ms |
134904 KB |
Output is correct |
24 |
Correct |
105 ms |
134908 KB |
Output is correct |
25 |
Correct |
102 ms |
134904 KB |
Output is correct |
26 |
Correct |
102 ms |
134904 KB |
Output is correct |
27 |
Correct |
100 ms |
134908 KB |
Output is correct |
28 |
Correct |
100 ms |
134904 KB |
Output is correct |
29 |
Correct |
102 ms |
134904 KB |
Output is correct |
30 |
Correct |
105 ms |
134904 KB |
Output is correct |
31 |
Correct |
106 ms |
134904 KB |
Output is correct |
32 |
Correct |
104 ms |
134904 KB |
Output is correct |
33 |
Correct |
103 ms |
134904 KB |
Output is correct |
34 |
Correct |
104 ms |
134904 KB |
Output is correct |
35 |
Correct |
101 ms |
134968 KB |
Output is correct |
36 |
Correct |
101 ms |
134904 KB |
Output is correct |
37 |
Correct |
102 ms |
134904 KB |
Output is correct |
38 |
Correct |
102 ms |
134904 KB |
Output is correct |
39 |
Correct |
104 ms |
134904 KB |
Output is correct |
40 |
Correct |
104 ms |
134904 KB |
Output is correct |
41 |
Correct |
102 ms |
135032 KB |
Output is correct |
42 |
Correct |
102 ms |
135032 KB |
Output is correct |
43 |
Correct |
105 ms |
135032 KB |
Output is correct |
44 |
Correct |
106 ms |
135032 KB |
Output is correct |
45 |
Correct |
102 ms |
135032 KB |
Output is correct |
46 |
Correct |
104 ms |
135032 KB |
Output is correct |
47 |
Correct |
102 ms |
135032 KB |
Output is correct |
48 |
Correct |
102 ms |
135032 KB |
Output is correct |
49 |
Correct |
101 ms |
135032 KB |
Output is correct |
50 |
Correct |
111 ms |
135028 KB |
Output is correct |
51 |
Correct |
109 ms |
135032 KB |
Output is correct |
52 |
Correct |
102 ms |
135032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
104 ms |
134904 KB |
Output is correct |
2 |
Correct |
103 ms |
135032 KB |
Output is correct |
3 |
Correct |
102 ms |
134904 KB |
Output is correct |
4 |
Correct |
102 ms |
134904 KB |
Output is correct |
5 |
Correct |
104 ms |
135032 KB |
Output is correct |
6 |
Correct |
101 ms |
134904 KB |
Output is correct |
7 |
Correct |
100 ms |
134904 KB |
Output is correct |
8 |
Correct |
102 ms |
134976 KB |
Output is correct |
9 |
Correct |
101 ms |
134904 KB |
Output is correct |
10 |
Correct |
103 ms |
134988 KB |
Output is correct |
11 |
Correct |
101 ms |
134948 KB |
Output is correct |
12 |
Correct |
102 ms |
134904 KB |
Output is correct |
13 |
Correct |
102 ms |
134904 KB |
Output is correct |
14 |
Correct |
103 ms |
134904 KB |
Output is correct |
15 |
Correct |
103 ms |
134904 KB |
Output is correct |
16 |
Correct |
101 ms |
134904 KB |
Output is correct |
17 |
Correct |
102 ms |
134904 KB |
Output is correct |
18 |
Correct |
104 ms |
134904 KB |
Output is correct |
19 |
Correct |
104 ms |
134904 KB |
Output is correct |
20 |
Correct |
106 ms |
134904 KB |
Output is correct |
21 |
Correct |
102 ms |
134880 KB |
Output is correct |
22 |
Correct |
103 ms |
135032 KB |
Output is correct |
23 |
Correct |
105 ms |
134904 KB |
Output is correct |
24 |
Correct |
105 ms |
134908 KB |
Output is correct |
25 |
Correct |
102 ms |
134904 KB |
Output is correct |
26 |
Correct |
102 ms |
134904 KB |
Output is correct |
27 |
Correct |
100 ms |
134908 KB |
Output is correct |
28 |
Correct |
100 ms |
134904 KB |
Output is correct |
29 |
Correct |
102 ms |
134904 KB |
Output is correct |
30 |
Correct |
105 ms |
134904 KB |
Output is correct |
31 |
Correct |
106 ms |
134904 KB |
Output is correct |
32 |
Correct |
104 ms |
134904 KB |
Output is correct |
33 |
Correct |
103 ms |
134904 KB |
Output is correct |
34 |
Correct |
104 ms |
134904 KB |
Output is correct |
35 |
Correct |
101 ms |
134968 KB |
Output is correct |
36 |
Correct |
101 ms |
134904 KB |
Output is correct |
37 |
Correct |
103 ms |
134904 KB |
Output is correct |
38 |
Correct |
103 ms |
134904 KB |
Output is correct |
39 |
Correct |
104 ms |
134904 KB |
Output is correct |
40 |
Correct |
104 ms |
134904 KB |
Output is correct |
41 |
Correct |
103 ms |
134944 KB |
Output is correct |
42 |
Correct |
101 ms |
134904 KB |
Output is correct |
43 |
Correct |
101 ms |
134904 KB |
Output is correct |
44 |
Correct |
104 ms |
134952 KB |
Output is correct |
45 |
Correct |
102 ms |
134904 KB |
Output is correct |
46 |
Correct |
102 ms |
134904 KB |
Output is correct |
47 |
Correct |
101 ms |
134904 KB |
Output is correct |
48 |
Correct |
102 ms |
134992 KB |
Output is correct |
49 |
Correct |
102 ms |
134908 KB |
Output is correct |
50 |
Correct |
102 ms |
134904 KB |
Output is correct |
51 |
Correct |
110 ms |
134904 KB |
Output is correct |
52 |
Correct |
111 ms |
135032 KB |
Output is correct |
53 |
Correct |
111 ms |
135032 KB |
Output is correct |
54 |
Correct |
114 ms |
135544 KB |
Output is correct |
55 |
Correct |
115 ms |
135544 KB |
Output is correct |
56 |
Correct |
163 ms |
141048 KB |
Output is correct |
57 |
Correct |
143 ms |
140920 KB |
Output is correct |
58 |
Correct |
144 ms |
141020 KB |
Output is correct |
59 |
Correct |
138 ms |
140408 KB |
Output is correct |
60 |
Correct |
148 ms |
140920 KB |
Output is correct |
61 |
Correct |
143 ms |
140792 KB |
Output is correct |
62 |
Correct |
144 ms |
140536 KB |
Output is correct |
63 |
Correct |
140 ms |
140584 KB |
Output is correct |
64 |
Correct |
151 ms |
140536 KB |
Output is correct |
65 |
Correct |
153 ms |
140920 KB |
Output is correct |
66 |
Correct |
151 ms |
140536 KB |
Output is correct |
67 |
Correct |
143 ms |
140408 KB |
Output is correct |
68 |
Correct |
145 ms |
140536 KB |
Output is correct |
69 |
Correct |
103 ms |
134904 KB |
Output is correct |
70 |
Correct |
104 ms |
134904 KB |
Output is correct |
71 |
Correct |
143 ms |
140536 KB |
Output is correct |
72 |
Correct |
144 ms |
140536 KB |
Output is correct |
73 |
Correct |
146 ms |
140664 KB |
Output is correct |
74 |
Correct |
101 ms |
134904 KB |
Output is correct |
75 |
Correct |
101 ms |
134904 KB |
Output is correct |
76 |
Correct |
103 ms |
134932 KB |
Output is correct |
77 |
Correct |
103 ms |
134904 KB |
Output is correct |
78 |
Correct |
193 ms |
138488 KB |
Output is correct |
79 |
Correct |
162 ms |
138488 KB |
Output is correct |
80 |
Correct |
191 ms |
138508 KB |
Output is correct |
81 |
Correct |
144 ms |
139384 KB |
Output is correct |
82 |
Correct |
190 ms |
138488 KB |
Output is correct |
83 |
Correct |
184 ms |
138508 KB |
Output is correct |
84 |
Correct |
102 ms |
134904 KB |
Output is correct |
85 |
Correct |
102 ms |
134904 KB |
Output is correct |
86 |
Correct |
104 ms |
134904 KB |
Output is correct |
87 |
Correct |
104 ms |
134904 KB |
Output is correct |
88 |
Correct |
102 ms |
135032 KB |
Output is correct |
89 |
Correct |
102 ms |
135032 KB |
Output is correct |
90 |
Correct |
105 ms |
135032 KB |
Output is correct |
91 |
Correct |
106 ms |
135032 KB |
Output is correct |
92 |
Correct |
102 ms |
135032 KB |
Output is correct |
93 |
Correct |
104 ms |
135032 KB |
Output is correct |
94 |
Correct |
102 ms |
135032 KB |
Output is correct |
95 |
Correct |
102 ms |
135032 KB |
Output is correct |
96 |
Correct |
101 ms |
135032 KB |
Output is correct |
97 |
Correct |
111 ms |
135028 KB |
Output is correct |
98 |
Correct |
109 ms |
135032 KB |
Output is correct |
99 |
Correct |
102 ms |
135032 KB |
Output is correct |
100 |
Correct |
102 ms |
135032 KB |
Output is correct |
101 |
Correct |
109 ms |
135416 KB |
Output is correct |
102 |
Correct |
106 ms |
135416 KB |
Output is correct |
103 |
Correct |
201 ms |
140152 KB |
Output is correct |
104 |
Correct |
200 ms |
140120 KB |
Output is correct |
105 |
Correct |
201 ms |
140152 KB |
Output is correct |
106 |
Correct |
192 ms |
139768 KB |
Output is correct |
107 |
Correct |
169 ms |
140152 KB |
Output is correct |
108 |
Correct |
175 ms |
140152 KB |
Output is correct |
109 |
Correct |
142 ms |
140536 KB |
Output is correct |
110 |
Correct |
142 ms |
140536 KB |
Output is correct |
111 |
Correct |
192 ms |
139896 KB |
Output is correct |
112 |
Correct |
198 ms |
140156 KB |
Output is correct |
113 |
Correct |
178 ms |
139768 KB |
Output is correct |
114 |
Correct |
192 ms |
139768 KB |
Output is correct |
115 |
Correct |
192 ms |
139772 KB |
Output is correct |