#include "shoes.h"
#include <queue>
// #include <iostream>
int n;
long long bit[100001];
std::queue<int> left[100001], right[100001];
void update(int pos) { for (int i = pos; i <= n; i += (i & (-i))) bit[i]++; }
long long query(int l, int r) {
long long ans = 0;
for (int i = r; i > 0; i -= (i & (-i))) ans += bit[i];
for (int i = l; i > 0; i -= (i & (-i))) ans -= bit[i];
return ans;
}
long long count_swaps(std::vector<int> s) {
n = s.size();
for (int i = 0; i < n; i++) {
if (s[i] < 0) left[-s[i]].push(i + 1);
else right[s[i]].push(i + 1);
}
long long ans = 0;
for (int i = 0; i < n; i++) {
if (s[i] < 0) {
if (left[-s[i]].front() == i + 1) {
int r_indx = right[-s[i]].front();
right[-s[i]].pop();
left[-s[i]].pop();
ans += r_indx - i - 2 - query(i + 1, r_indx);
update(r_indx);
}
} else {
if (right[s[i]].front() == i + 1) {
int l_indx = left[s[i]].front();
right[s[i]].pop();
left[s[i]].pop();
ans += l_indx - i - 1 - query(i + 1, l_indx);
update(l_indx);
}
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
137 ms |
135004 KB |
Output is correct |
2 |
Correct |
140 ms |
134992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
137 ms |
135004 KB |
Output is correct |
2 |
Correct |
140 ms |
134992 KB |
Output is correct |
3 |
Correct |
139 ms |
134920 KB |
Output is correct |
4 |
Correct |
138 ms |
134904 KB |
Output is correct |
5 |
Correct |
138 ms |
135032 KB |
Output is correct |
6 |
Correct |
139 ms |
134968 KB |
Output is correct |
7 |
Correct |
158 ms |
135040 KB |
Output is correct |
8 |
Correct |
139 ms |
135004 KB |
Output is correct |
9 |
Correct |
144 ms |
134968 KB |
Output is correct |
10 |
Correct |
137 ms |
134904 KB |
Output is correct |
11 |
Correct |
138 ms |
135028 KB |
Output is correct |
12 |
Correct |
139 ms |
134880 KB |
Output is correct |
13 |
Correct |
138 ms |
134880 KB |
Output is correct |
14 |
Correct |
139 ms |
134904 KB |
Output is correct |
15 |
Correct |
138 ms |
134904 KB |
Output is correct |
16 |
Correct |
138 ms |
134952 KB |
Output is correct |
17 |
Correct |
138 ms |
134904 KB |
Output is correct |
18 |
Correct |
140 ms |
134904 KB |
Output is correct |
19 |
Correct |
141 ms |
134908 KB |
Output is correct |
20 |
Correct |
143 ms |
134960 KB |
Output is correct |
21 |
Correct |
138 ms |
134904 KB |
Output is correct |
22 |
Correct |
139 ms |
134912 KB |
Output is correct |
23 |
Correct |
137 ms |
134904 KB |
Output is correct |
24 |
Correct |
136 ms |
134920 KB |
Output is correct |
25 |
Correct |
139 ms |
134884 KB |
Output is correct |
26 |
Correct |
137 ms |
134904 KB |
Output is correct |
27 |
Correct |
144 ms |
134936 KB |
Output is correct |
28 |
Correct |
139 ms |
134976 KB |
Output is correct |
29 |
Correct |
137 ms |
134984 KB |
Output is correct |
30 |
Correct |
137 ms |
134904 KB |
Output is correct |
31 |
Correct |
136 ms |
135032 KB |
Output is correct |
32 |
Correct |
138 ms |
134892 KB |
Output is correct |
33 |
Correct |
150 ms |
134884 KB |
Output is correct |
34 |
Correct |
139 ms |
134912 KB |
Output is correct |
35 |
Correct |
139 ms |
134876 KB |
Output is correct |
36 |
Correct |
137 ms |
134876 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
137 ms |
135004 KB |
Output is correct |
2 |
Correct |
140 ms |
134992 KB |
Output is correct |
3 |
Correct |
139 ms |
135032 KB |
Output is correct |
4 |
Correct |
138 ms |
134896 KB |
Output is correct |
5 |
Correct |
137 ms |
134876 KB |
Output is correct |
6 |
Correct |
146 ms |
134904 KB |
Output is correct |
7 |
Correct |
146 ms |
134880 KB |
Output is correct |
8 |
Correct |
138 ms |
134888 KB |
Output is correct |
9 |
Correct |
139 ms |
134876 KB |
Output is correct |
10 |
Correct |
140 ms |
134904 KB |
Output is correct |
11 |
Correct |
138 ms |
134968 KB |
Output is correct |
12 |
Correct |
139 ms |
135036 KB |
Output is correct |
13 |
Correct |
137 ms |
134904 KB |
Output is correct |
14 |
Correct |
141 ms |
135032 KB |
Output is correct |
15 |
Correct |
139 ms |
135020 KB |
Output is correct |
16 |
Correct |
139 ms |
134916 KB |
Output is correct |
17 |
Correct |
152 ms |
134944 KB |
Output is correct |
18 |
Correct |
149 ms |
134988 KB |
Output is correct |
19 |
Correct |
150 ms |
135052 KB |
Output is correct |
20 |
Correct |
154 ms |
135388 KB |
Output is correct |
21 |
Correct |
154 ms |
135292 KB |
Output is correct |
22 |
Runtime error |
341 ms |
277952 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
23 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
137 ms |
135020 KB |
Output is correct |
2 |
Correct |
137 ms |
134904 KB |
Output is correct |
3 |
Correct |
140 ms |
134916 KB |
Output is correct |
4 |
Correct |
137 ms |
134956 KB |
Output is correct |
5 |
Runtime error |
368 ms |
276100 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
137 ms |
135004 KB |
Output is correct |
2 |
Correct |
140 ms |
134992 KB |
Output is correct |
3 |
Correct |
139 ms |
134920 KB |
Output is correct |
4 |
Correct |
138 ms |
134904 KB |
Output is correct |
5 |
Correct |
138 ms |
135032 KB |
Output is correct |
6 |
Correct |
139 ms |
134968 KB |
Output is correct |
7 |
Correct |
158 ms |
135040 KB |
Output is correct |
8 |
Correct |
139 ms |
135004 KB |
Output is correct |
9 |
Correct |
144 ms |
134968 KB |
Output is correct |
10 |
Correct |
137 ms |
134904 KB |
Output is correct |
11 |
Correct |
138 ms |
135028 KB |
Output is correct |
12 |
Correct |
139 ms |
134880 KB |
Output is correct |
13 |
Correct |
138 ms |
134880 KB |
Output is correct |
14 |
Correct |
139 ms |
134904 KB |
Output is correct |
15 |
Correct |
138 ms |
134904 KB |
Output is correct |
16 |
Correct |
138 ms |
134952 KB |
Output is correct |
17 |
Correct |
138 ms |
134904 KB |
Output is correct |
18 |
Correct |
140 ms |
134904 KB |
Output is correct |
19 |
Correct |
141 ms |
134908 KB |
Output is correct |
20 |
Correct |
143 ms |
134960 KB |
Output is correct |
21 |
Correct |
138 ms |
134904 KB |
Output is correct |
22 |
Correct |
139 ms |
134912 KB |
Output is correct |
23 |
Correct |
137 ms |
134904 KB |
Output is correct |
24 |
Correct |
136 ms |
134920 KB |
Output is correct |
25 |
Correct |
139 ms |
134884 KB |
Output is correct |
26 |
Correct |
137 ms |
134904 KB |
Output is correct |
27 |
Correct |
144 ms |
134936 KB |
Output is correct |
28 |
Correct |
139 ms |
134976 KB |
Output is correct |
29 |
Correct |
137 ms |
134984 KB |
Output is correct |
30 |
Correct |
137 ms |
134904 KB |
Output is correct |
31 |
Correct |
136 ms |
135032 KB |
Output is correct |
32 |
Correct |
138 ms |
134892 KB |
Output is correct |
33 |
Correct |
150 ms |
134884 KB |
Output is correct |
34 |
Correct |
139 ms |
134912 KB |
Output is correct |
35 |
Correct |
139 ms |
134876 KB |
Output is correct |
36 |
Correct |
137 ms |
134876 KB |
Output is correct |
37 |
Correct |
145 ms |
134992 KB |
Output is correct |
38 |
Correct |
139 ms |
134904 KB |
Output is correct |
39 |
Correct |
175 ms |
135032 KB |
Output is correct |
40 |
Correct |
138 ms |
134956 KB |
Output is correct |
41 |
Correct |
147 ms |
135008 KB |
Output is correct |
42 |
Correct |
140 ms |
135024 KB |
Output is correct |
43 |
Correct |
140 ms |
134904 KB |
Output is correct |
44 |
Correct |
141 ms |
134912 KB |
Output is correct |
45 |
Correct |
137 ms |
134964 KB |
Output is correct |
46 |
Correct |
136 ms |
135004 KB |
Output is correct |
47 |
Correct |
139 ms |
135032 KB |
Output is correct |
48 |
Correct |
140 ms |
134980 KB |
Output is correct |
49 |
Correct |
138 ms |
134896 KB |
Output is correct |
50 |
Correct |
151 ms |
135032 KB |
Output is correct |
51 |
Correct |
165 ms |
134908 KB |
Output is correct |
52 |
Correct |
139 ms |
134916 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
137 ms |
135004 KB |
Output is correct |
2 |
Correct |
140 ms |
134992 KB |
Output is correct |
3 |
Correct |
139 ms |
134920 KB |
Output is correct |
4 |
Correct |
138 ms |
134904 KB |
Output is correct |
5 |
Correct |
138 ms |
135032 KB |
Output is correct |
6 |
Correct |
139 ms |
134968 KB |
Output is correct |
7 |
Correct |
158 ms |
135040 KB |
Output is correct |
8 |
Correct |
139 ms |
135004 KB |
Output is correct |
9 |
Correct |
144 ms |
134968 KB |
Output is correct |
10 |
Correct |
137 ms |
134904 KB |
Output is correct |
11 |
Correct |
138 ms |
135028 KB |
Output is correct |
12 |
Correct |
139 ms |
134880 KB |
Output is correct |
13 |
Correct |
138 ms |
134880 KB |
Output is correct |
14 |
Correct |
139 ms |
134904 KB |
Output is correct |
15 |
Correct |
138 ms |
134904 KB |
Output is correct |
16 |
Correct |
138 ms |
134952 KB |
Output is correct |
17 |
Correct |
138 ms |
134904 KB |
Output is correct |
18 |
Correct |
140 ms |
134904 KB |
Output is correct |
19 |
Correct |
141 ms |
134908 KB |
Output is correct |
20 |
Correct |
143 ms |
134960 KB |
Output is correct |
21 |
Correct |
138 ms |
134904 KB |
Output is correct |
22 |
Correct |
139 ms |
134912 KB |
Output is correct |
23 |
Correct |
137 ms |
134904 KB |
Output is correct |
24 |
Correct |
136 ms |
134920 KB |
Output is correct |
25 |
Correct |
139 ms |
134884 KB |
Output is correct |
26 |
Correct |
137 ms |
134904 KB |
Output is correct |
27 |
Correct |
144 ms |
134936 KB |
Output is correct |
28 |
Correct |
139 ms |
134976 KB |
Output is correct |
29 |
Correct |
137 ms |
134984 KB |
Output is correct |
30 |
Correct |
137 ms |
134904 KB |
Output is correct |
31 |
Correct |
136 ms |
135032 KB |
Output is correct |
32 |
Correct |
138 ms |
134892 KB |
Output is correct |
33 |
Correct |
150 ms |
134884 KB |
Output is correct |
34 |
Correct |
139 ms |
134912 KB |
Output is correct |
35 |
Correct |
139 ms |
134876 KB |
Output is correct |
36 |
Correct |
137 ms |
134876 KB |
Output is correct |
37 |
Correct |
139 ms |
135032 KB |
Output is correct |
38 |
Correct |
138 ms |
134896 KB |
Output is correct |
39 |
Correct |
137 ms |
134876 KB |
Output is correct |
40 |
Correct |
146 ms |
134904 KB |
Output is correct |
41 |
Correct |
146 ms |
134880 KB |
Output is correct |
42 |
Correct |
138 ms |
134888 KB |
Output is correct |
43 |
Correct |
139 ms |
134876 KB |
Output is correct |
44 |
Correct |
140 ms |
134904 KB |
Output is correct |
45 |
Correct |
138 ms |
134968 KB |
Output is correct |
46 |
Correct |
139 ms |
135036 KB |
Output is correct |
47 |
Correct |
137 ms |
134904 KB |
Output is correct |
48 |
Correct |
141 ms |
135032 KB |
Output is correct |
49 |
Correct |
139 ms |
135020 KB |
Output is correct |
50 |
Correct |
139 ms |
134916 KB |
Output is correct |
51 |
Correct |
152 ms |
134944 KB |
Output is correct |
52 |
Correct |
149 ms |
134988 KB |
Output is correct |
53 |
Correct |
150 ms |
135052 KB |
Output is correct |
54 |
Correct |
154 ms |
135388 KB |
Output is correct |
55 |
Correct |
154 ms |
135292 KB |
Output is correct |
56 |
Runtime error |
341 ms |
277952 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
57 |
Halted |
0 ms |
0 KB |
- |