#include <bits/stdc++.h>
using namespace std;
#define ll long long
vector <int> t, used;
inline static int f (int i) {
return i | (i + 1);
}
inline static int g (int i) {
return i & (i + 1);
}
inline void upd (int i, int x) {
for (; i < (int)t.size(); i = f(i)) t[i] += x;
}
inline int sum (int i) {
int res = 0;
for (; i >= 0; i = g(i) - 1) res += t[i];
return res;
}
inline int sum (int l, int r) {
return sum(r) - sum(l - 1);
}
vector<vector <int> > pos;
inline int get_pos (int x, int n) {
if (pos[-x + n].empty()) {
cout << "HOW";
exit(0);
}
return pos[-x + n].back();
}
ll count_swaps(vector<int> a) {
ll ans = 0; int n = (int)a.size();
t.resize(n);
pos.resize(n + n + 1);
used.resize(n + n + 1);
for (int i = 0; i < n; i++) {
pos[a[i] + n].push_back(i);
}
for (auto &i : pos) reverse(i.begin(), i.end());
for (int i = 0; i < n; i++) {
if (used[a[i] + n] > 0) {
--used[a[i] + n];
continue;
}
int cur = i + sum(i), x = get_pos(a[i], n);
int to = x + sum(x);
ans += to - cur - 1 + bool(a[i] > 0);
upd(i, 1);
upd(x, -1);
pos[a[i] + n].pop_back();
pos[-a[i] + n].pop_back();
++used[-a[i] + n];
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
252 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
256 KB |
Output is correct |
8 |
Correct |
2 ms |
256 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
380 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Correct |
2 ms |
256 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
424 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
380 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
256 KB |
Output is correct |
22 |
Correct |
2 ms |
252 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
392 KB |
Output is correct |
25 |
Correct |
2 ms |
256 KB |
Output is correct |
26 |
Correct |
2 ms |
256 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
252 KB |
Output is correct |
29 |
Correct |
2 ms |
256 KB |
Output is correct |
30 |
Correct |
2 ms |
348 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
256 KB |
Output is correct |
34 |
Correct |
2 ms |
256 KB |
Output is correct |
35 |
Correct |
2 ms |
256 KB |
Output is correct |
36 |
Correct |
2 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
256 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
256 KB |
Output is correct |
8 |
Correct |
2 ms |
256 KB |
Output is correct |
9 |
Correct |
2 ms |
256 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Correct |
2 ms |
256 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
3 ms |
504 KB |
Output is correct |
19 |
Correct |
3 ms |
504 KB |
Output is correct |
20 |
Correct |
7 ms |
1912 KB |
Output is correct |
21 |
Correct |
7 ms |
1912 KB |
Output is correct |
22 |
Correct |
53 ms |
15900 KB |
Output is correct |
23 |
Correct |
47 ms |
15980 KB |
Output is correct |
24 |
Correct |
53 ms |
15860 KB |
Output is correct |
25 |
Correct |
48 ms |
15856 KB |
Output is correct |
26 |
Correct |
53 ms |
15984 KB |
Output is correct |
27 |
Correct |
47 ms |
15732 KB |
Output is correct |
28 |
Correct |
51 ms |
16112 KB |
Output is correct |
29 |
Correct |
50 ms |
16112 KB |
Output is correct |
30 |
Correct |
50 ms |
16112 KB |
Output is correct |
31 |
Correct |
58 ms |
15756 KB |
Output is correct |
32 |
Correct |
69 ms |
16112 KB |
Output is correct |
33 |
Correct |
49 ms |
15856 KB |
Output is correct |
34 |
Correct |
50 ms |
16112 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
51 ms |
16112 KB |
Output is correct |
38 |
Correct |
50 ms |
16112 KB |
Output is correct |
39 |
Correct |
50 ms |
16112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
90 ms |
21112 KB |
Output is correct |
6 |
Correct |
71 ms |
16404 KB |
Output is correct |
7 |
Correct |
86 ms |
21112 KB |
Output is correct |
8 |
Correct |
54 ms |
15880 KB |
Output is correct |
9 |
Correct |
89 ms |
21112 KB |
Output is correct |
10 |
Correct |
91 ms |
18040 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
252 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
256 KB |
Output is correct |
8 |
Correct |
2 ms |
256 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
380 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Correct |
2 ms |
256 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
424 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
380 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
256 KB |
Output is correct |
22 |
Correct |
2 ms |
252 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
392 KB |
Output is correct |
25 |
Correct |
2 ms |
256 KB |
Output is correct |
26 |
Correct |
2 ms |
256 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
252 KB |
Output is correct |
29 |
Correct |
2 ms |
256 KB |
Output is correct |
30 |
Correct |
2 ms |
348 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
256 KB |
Output is correct |
34 |
Correct |
2 ms |
256 KB |
Output is correct |
35 |
Correct |
2 ms |
256 KB |
Output is correct |
36 |
Correct |
2 ms |
256 KB |
Output is correct |
37 |
Correct |
2 ms |
256 KB |
Output is correct |
38 |
Correct |
2 ms |
256 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
2 ms |
376 KB |
Output is correct |
41 |
Correct |
3 ms |
504 KB |
Output is correct |
42 |
Correct |
3 ms |
504 KB |
Output is correct |
43 |
Correct |
3 ms |
504 KB |
Output is correct |
44 |
Correct |
3 ms |
632 KB |
Output is correct |
45 |
Correct |
3 ms |
504 KB |
Output is correct |
46 |
Correct |
3 ms |
508 KB |
Output is correct |
47 |
Correct |
3 ms |
504 KB |
Output is correct |
48 |
Correct |
3 ms |
504 KB |
Output is correct |
49 |
Correct |
3 ms |
504 KB |
Output is correct |
50 |
Correct |
2 ms |
504 KB |
Output is correct |
51 |
Correct |
3 ms |
504 KB |
Output is correct |
52 |
Correct |
3 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
252 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
256 KB |
Output is correct |
8 |
Correct |
2 ms |
256 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
380 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Correct |
2 ms |
256 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
424 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
380 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
256 KB |
Output is correct |
22 |
Correct |
2 ms |
252 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
392 KB |
Output is correct |
25 |
Correct |
2 ms |
256 KB |
Output is correct |
26 |
Correct |
2 ms |
256 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
252 KB |
Output is correct |
29 |
Correct |
2 ms |
256 KB |
Output is correct |
30 |
Correct |
2 ms |
348 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
256 KB |
Output is correct |
34 |
Correct |
2 ms |
256 KB |
Output is correct |
35 |
Correct |
2 ms |
256 KB |
Output is correct |
36 |
Correct |
2 ms |
256 KB |
Output is correct |
37 |
Correct |
2 ms |
256 KB |
Output is correct |
38 |
Correct |
2 ms |
256 KB |
Output is correct |
39 |
Correct |
2 ms |
376 KB |
Output is correct |
40 |
Correct |
2 ms |
380 KB |
Output is correct |
41 |
Correct |
2 ms |
256 KB |
Output is correct |
42 |
Correct |
2 ms |
256 KB |
Output is correct |
43 |
Correct |
2 ms |
256 KB |
Output is correct |
44 |
Correct |
2 ms |
376 KB |
Output is correct |
45 |
Correct |
2 ms |
376 KB |
Output is correct |
46 |
Correct |
2 ms |
376 KB |
Output is correct |
47 |
Correct |
2 ms |
256 KB |
Output is correct |
48 |
Correct |
2 ms |
256 KB |
Output is correct |
49 |
Correct |
2 ms |
376 KB |
Output is correct |
50 |
Correct |
2 ms |
376 KB |
Output is correct |
51 |
Correct |
2 ms |
376 KB |
Output is correct |
52 |
Correct |
3 ms |
504 KB |
Output is correct |
53 |
Correct |
3 ms |
504 KB |
Output is correct |
54 |
Correct |
7 ms |
1912 KB |
Output is correct |
55 |
Correct |
7 ms |
1912 KB |
Output is correct |
56 |
Correct |
53 ms |
15900 KB |
Output is correct |
57 |
Correct |
47 ms |
15980 KB |
Output is correct |
58 |
Correct |
53 ms |
15860 KB |
Output is correct |
59 |
Correct |
48 ms |
15856 KB |
Output is correct |
60 |
Correct |
53 ms |
15984 KB |
Output is correct |
61 |
Correct |
47 ms |
15732 KB |
Output is correct |
62 |
Correct |
51 ms |
16112 KB |
Output is correct |
63 |
Correct |
50 ms |
16112 KB |
Output is correct |
64 |
Correct |
50 ms |
16112 KB |
Output is correct |
65 |
Correct |
58 ms |
15756 KB |
Output is correct |
66 |
Correct |
69 ms |
16112 KB |
Output is correct |
67 |
Correct |
49 ms |
15856 KB |
Output is correct |
68 |
Correct |
50 ms |
16112 KB |
Output is correct |
69 |
Correct |
2 ms |
376 KB |
Output is correct |
70 |
Correct |
2 ms |
376 KB |
Output is correct |
71 |
Correct |
51 ms |
16112 KB |
Output is correct |
72 |
Correct |
50 ms |
16112 KB |
Output is correct |
73 |
Correct |
50 ms |
16112 KB |
Output is correct |
74 |
Correct |
2 ms |
376 KB |
Output is correct |
75 |
Correct |
2 ms |
376 KB |
Output is correct |
76 |
Correct |
2 ms |
376 KB |
Output is correct |
77 |
Correct |
2 ms |
376 KB |
Output is correct |
78 |
Correct |
90 ms |
21112 KB |
Output is correct |
79 |
Correct |
71 ms |
16404 KB |
Output is correct |
80 |
Correct |
86 ms |
21112 KB |
Output is correct |
81 |
Correct |
54 ms |
15880 KB |
Output is correct |
82 |
Correct |
89 ms |
21112 KB |
Output is correct |
83 |
Correct |
91 ms |
18040 KB |
Output is correct |
84 |
Correct |
2 ms |
256 KB |
Output is correct |
85 |
Correct |
2 ms |
256 KB |
Output is correct |
86 |
Correct |
2 ms |
376 KB |
Output is correct |
87 |
Correct |
2 ms |
376 KB |
Output is correct |
88 |
Correct |
3 ms |
504 KB |
Output is correct |
89 |
Correct |
3 ms |
504 KB |
Output is correct |
90 |
Correct |
3 ms |
504 KB |
Output is correct |
91 |
Correct |
3 ms |
632 KB |
Output is correct |
92 |
Correct |
3 ms |
504 KB |
Output is correct |
93 |
Correct |
3 ms |
508 KB |
Output is correct |
94 |
Correct |
3 ms |
504 KB |
Output is correct |
95 |
Correct |
3 ms |
504 KB |
Output is correct |
96 |
Correct |
3 ms |
504 KB |
Output is correct |
97 |
Correct |
2 ms |
504 KB |
Output is correct |
98 |
Correct |
3 ms |
504 KB |
Output is correct |
99 |
Correct |
3 ms |
504 KB |
Output is correct |
100 |
Correct |
3 ms |
504 KB |
Output is correct |
101 |
Correct |
10 ms |
2296 KB |
Output is correct |
102 |
Correct |
9 ms |
1912 KB |
Output is correct |
103 |
Correct |
119 ms |
21236 KB |
Output is correct |
104 |
Correct |
104 ms |
21092 KB |
Output is correct |
105 |
Correct |
110 ms |
18420 KB |
Output is correct |
106 |
Correct |
87 ms |
21112 KB |
Output is correct |
107 |
Correct |
78 ms |
16504 KB |
Output is correct |
108 |
Correct |
81 ms |
16760 KB |
Output is correct |
109 |
Correct |
52 ms |
16112 KB |
Output is correct |
110 |
Correct |
50 ms |
16104 KB |
Output is correct |
111 |
Correct |
92 ms |
20444 KB |
Output is correct |
112 |
Correct |
106 ms |
19800 KB |
Output is correct |
113 |
Correct |
77 ms |
16624 KB |
Output is correct |
114 |
Correct |
83 ms |
21112 KB |
Output is correct |
115 |
Correct |
88 ms |
21112 KB |
Output is correct |