#include "shoes.h"
#include <queue>
int n;
long long bit[200001];
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 |
139 ms |
134980 KB |
Output is correct |
2 |
Correct |
136 ms |
134976 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
139 ms |
134980 KB |
Output is correct |
2 |
Correct |
136 ms |
134976 KB |
Output is correct |
3 |
Correct |
137 ms |
134924 KB |
Output is correct |
4 |
Correct |
138 ms |
135028 KB |
Output is correct |
5 |
Correct |
138 ms |
134948 KB |
Output is correct |
6 |
Correct |
138 ms |
134880 KB |
Output is correct |
7 |
Correct |
139 ms |
134904 KB |
Output is correct |
8 |
Correct |
138 ms |
134908 KB |
Output is correct |
9 |
Correct |
138 ms |
134940 KB |
Output is correct |
10 |
Correct |
138 ms |
134932 KB |
Output is correct |
11 |
Correct |
138 ms |
134904 KB |
Output is correct |
12 |
Correct |
139 ms |
134956 KB |
Output is correct |
13 |
Correct |
137 ms |
134904 KB |
Output is correct |
14 |
Correct |
139 ms |
134952 KB |
Output is correct |
15 |
Correct |
147 ms |
134880 KB |
Output is correct |
16 |
Correct |
141 ms |
135076 KB |
Output is correct |
17 |
Correct |
143 ms |
134912 KB |
Output is correct |
18 |
Correct |
139 ms |
134876 KB |
Output is correct |
19 |
Correct |
139 ms |
134904 KB |
Output is correct |
20 |
Correct |
139 ms |
134884 KB |
Output is correct |
21 |
Correct |
137 ms |
135032 KB |
Output is correct |
22 |
Correct |
139 ms |
135120 KB |
Output is correct |
23 |
Correct |
138 ms |
135036 KB |
Output is correct |
24 |
Correct |
153 ms |
135032 KB |
Output is correct |
25 |
Correct |
139 ms |
134924 KB |
Output is correct |
26 |
Correct |
157 ms |
134992 KB |
Output is correct |
27 |
Correct |
168 ms |
134956 KB |
Output is correct |
28 |
Correct |
168 ms |
134988 KB |
Output is correct |
29 |
Correct |
162 ms |
134972 KB |
Output is correct |
30 |
Correct |
138 ms |
135032 KB |
Output is correct |
31 |
Correct |
136 ms |
134904 KB |
Output is correct |
32 |
Correct |
140 ms |
134904 KB |
Output is correct |
33 |
Correct |
141 ms |
134904 KB |
Output is correct |
34 |
Correct |
138 ms |
134904 KB |
Output is correct |
35 |
Correct |
137 ms |
134988 KB |
Output is correct |
36 |
Correct |
137 ms |
134904 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
139 ms |
134980 KB |
Output is correct |
2 |
Correct |
136 ms |
134976 KB |
Output is correct |
3 |
Correct |
140 ms |
134920 KB |
Output is correct |
4 |
Correct |
143 ms |
134880 KB |
Output is correct |
5 |
Correct |
137 ms |
134988 KB |
Output is correct |
6 |
Correct |
139 ms |
135032 KB |
Output is correct |
7 |
Correct |
138 ms |
134904 KB |
Output is correct |
8 |
Correct |
140 ms |
134988 KB |
Output is correct |
9 |
Correct |
137 ms |
134996 KB |
Output is correct |
10 |
Correct |
142 ms |
135032 KB |
Output is correct |
11 |
Correct |
136 ms |
134904 KB |
Output is correct |
12 |
Correct |
137 ms |
134912 KB |
Output is correct |
13 |
Correct |
140 ms |
134908 KB |
Output is correct |
14 |
Correct |
138 ms |
134940 KB |
Output is correct |
15 |
Correct |
140 ms |
134948 KB |
Output is correct |
16 |
Correct |
163 ms |
134904 KB |
Output is correct |
17 |
Correct |
150 ms |
134968 KB |
Output is correct |
18 |
Correct |
151 ms |
135004 KB |
Output is correct |
19 |
Correct |
151 ms |
134904 KB |
Output is correct |
20 |
Correct |
154 ms |
135416 KB |
Output is correct |
21 |
Correct |
155 ms |
135424 KB |
Output is correct |
22 |
Correct |
193 ms |
138832 KB |
Output is correct |
23 |
Correct |
183 ms |
139032 KB |
Output is correct |
24 |
Correct |
187 ms |
138872 KB |
Output is correct |
25 |
Correct |
186 ms |
138076 KB |
Output is correct |
26 |
Correct |
183 ms |
139000 KB |
Output is correct |
27 |
Correct |
181 ms |
138872 KB |
Output is correct |
28 |
Correct |
181 ms |
138104 KB |
Output is correct |
29 |
Correct |
220 ms |
138076 KB |
Output is correct |
30 |
Correct |
181 ms |
138088 KB |
Output is correct |
31 |
Correct |
183 ms |
138872 KB |
Output is correct |
32 |
Correct |
219 ms |
138148 KB |
Output is correct |
33 |
Correct |
205 ms |
138364 KB |
Output is correct |
34 |
Correct |
182 ms |
138056 KB |
Output is correct |
35 |
Correct |
140 ms |
134948 KB |
Output is correct |
36 |
Correct |
139 ms |
134988 KB |
Output is correct |
37 |
Correct |
179 ms |
138204 KB |
Output is correct |
38 |
Correct |
184 ms |
138120 KB |
Output is correct |
39 |
Correct |
191 ms |
138196 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
138 ms |
134904 KB |
Output is correct |
2 |
Correct |
139 ms |
134904 KB |
Output is correct |
3 |
Correct |
146 ms |
134908 KB |
Output is correct |
4 |
Correct |
164 ms |
134960 KB |
Output is correct |
5 |
Correct |
234 ms |
137336 KB |
Output is correct |
6 |
Correct |
198 ms |
137428 KB |
Output is correct |
7 |
Correct |
249 ms |
137332 KB |
Output is correct |
8 |
Correct |
182 ms |
138156 KB |
Output is correct |
9 |
Correct |
233 ms |
137360 KB |
Output is correct |
10 |
Correct |
220 ms |
137320 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
139 ms |
134980 KB |
Output is correct |
2 |
Correct |
136 ms |
134976 KB |
Output is correct |
3 |
Correct |
137 ms |
134924 KB |
Output is correct |
4 |
Correct |
138 ms |
135028 KB |
Output is correct |
5 |
Correct |
138 ms |
134948 KB |
Output is correct |
6 |
Correct |
138 ms |
134880 KB |
Output is correct |
7 |
Correct |
139 ms |
134904 KB |
Output is correct |
8 |
Correct |
138 ms |
134908 KB |
Output is correct |
9 |
Correct |
138 ms |
134940 KB |
Output is correct |
10 |
Correct |
138 ms |
134932 KB |
Output is correct |
11 |
Correct |
138 ms |
134904 KB |
Output is correct |
12 |
Correct |
139 ms |
134956 KB |
Output is correct |
13 |
Correct |
137 ms |
134904 KB |
Output is correct |
14 |
Correct |
139 ms |
134952 KB |
Output is correct |
15 |
Correct |
147 ms |
134880 KB |
Output is correct |
16 |
Correct |
141 ms |
135076 KB |
Output is correct |
17 |
Correct |
143 ms |
134912 KB |
Output is correct |
18 |
Correct |
139 ms |
134876 KB |
Output is correct |
19 |
Correct |
139 ms |
134904 KB |
Output is correct |
20 |
Correct |
139 ms |
134884 KB |
Output is correct |
21 |
Correct |
137 ms |
135032 KB |
Output is correct |
22 |
Correct |
139 ms |
135120 KB |
Output is correct |
23 |
Correct |
138 ms |
135036 KB |
Output is correct |
24 |
Correct |
153 ms |
135032 KB |
Output is correct |
25 |
Correct |
139 ms |
134924 KB |
Output is correct |
26 |
Correct |
157 ms |
134992 KB |
Output is correct |
27 |
Correct |
168 ms |
134956 KB |
Output is correct |
28 |
Correct |
168 ms |
134988 KB |
Output is correct |
29 |
Correct |
162 ms |
134972 KB |
Output is correct |
30 |
Correct |
138 ms |
135032 KB |
Output is correct |
31 |
Correct |
136 ms |
134904 KB |
Output is correct |
32 |
Correct |
140 ms |
134904 KB |
Output is correct |
33 |
Correct |
141 ms |
134904 KB |
Output is correct |
34 |
Correct |
138 ms |
134904 KB |
Output is correct |
35 |
Correct |
137 ms |
134988 KB |
Output is correct |
36 |
Correct |
137 ms |
134904 KB |
Output is correct |
37 |
Correct |
139 ms |
135016 KB |
Output is correct |
38 |
Correct |
138 ms |
134888 KB |
Output is correct |
39 |
Correct |
138 ms |
134996 KB |
Output is correct |
40 |
Correct |
167 ms |
134860 KB |
Output is correct |
41 |
Correct |
146 ms |
135116 KB |
Output is correct |
42 |
Correct |
139 ms |
135072 KB |
Output is correct |
43 |
Correct |
138 ms |
134852 KB |
Output is correct |
44 |
Correct |
139 ms |
134904 KB |
Output is correct |
45 |
Correct |
139 ms |
135004 KB |
Output is correct |
46 |
Correct |
156 ms |
134904 KB |
Output is correct |
47 |
Correct |
139 ms |
135004 KB |
Output is correct |
48 |
Correct |
143 ms |
135032 KB |
Output is correct |
49 |
Correct |
138 ms |
134932 KB |
Output is correct |
50 |
Correct |
150 ms |
134948 KB |
Output is correct |
51 |
Correct |
152 ms |
134976 KB |
Output is correct |
52 |
Correct |
143 ms |
134892 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
139 ms |
134980 KB |
Output is correct |
2 |
Correct |
136 ms |
134976 KB |
Output is correct |
3 |
Correct |
137 ms |
134924 KB |
Output is correct |
4 |
Correct |
138 ms |
135028 KB |
Output is correct |
5 |
Correct |
138 ms |
134948 KB |
Output is correct |
6 |
Correct |
138 ms |
134880 KB |
Output is correct |
7 |
Correct |
139 ms |
134904 KB |
Output is correct |
8 |
Correct |
138 ms |
134908 KB |
Output is correct |
9 |
Correct |
138 ms |
134940 KB |
Output is correct |
10 |
Correct |
138 ms |
134932 KB |
Output is correct |
11 |
Correct |
138 ms |
134904 KB |
Output is correct |
12 |
Correct |
139 ms |
134956 KB |
Output is correct |
13 |
Correct |
137 ms |
134904 KB |
Output is correct |
14 |
Correct |
139 ms |
134952 KB |
Output is correct |
15 |
Correct |
147 ms |
134880 KB |
Output is correct |
16 |
Correct |
141 ms |
135076 KB |
Output is correct |
17 |
Correct |
143 ms |
134912 KB |
Output is correct |
18 |
Correct |
139 ms |
134876 KB |
Output is correct |
19 |
Correct |
139 ms |
134904 KB |
Output is correct |
20 |
Correct |
139 ms |
134884 KB |
Output is correct |
21 |
Correct |
137 ms |
135032 KB |
Output is correct |
22 |
Correct |
139 ms |
135120 KB |
Output is correct |
23 |
Correct |
138 ms |
135036 KB |
Output is correct |
24 |
Correct |
153 ms |
135032 KB |
Output is correct |
25 |
Correct |
139 ms |
134924 KB |
Output is correct |
26 |
Correct |
157 ms |
134992 KB |
Output is correct |
27 |
Correct |
168 ms |
134956 KB |
Output is correct |
28 |
Correct |
168 ms |
134988 KB |
Output is correct |
29 |
Correct |
162 ms |
134972 KB |
Output is correct |
30 |
Correct |
138 ms |
135032 KB |
Output is correct |
31 |
Correct |
136 ms |
134904 KB |
Output is correct |
32 |
Correct |
140 ms |
134904 KB |
Output is correct |
33 |
Correct |
141 ms |
134904 KB |
Output is correct |
34 |
Correct |
138 ms |
134904 KB |
Output is correct |
35 |
Correct |
137 ms |
134988 KB |
Output is correct |
36 |
Correct |
137 ms |
134904 KB |
Output is correct |
37 |
Correct |
140 ms |
134920 KB |
Output is correct |
38 |
Correct |
143 ms |
134880 KB |
Output is correct |
39 |
Correct |
137 ms |
134988 KB |
Output is correct |
40 |
Correct |
139 ms |
135032 KB |
Output is correct |
41 |
Correct |
138 ms |
134904 KB |
Output is correct |
42 |
Correct |
140 ms |
134988 KB |
Output is correct |
43 |
Correct |
137 ms |
134996 KB |
Output is correct |
44 |
Correct |
142 ms |
135032 KB |
Output is correct |
45 |
Correct |
136 ms |
134904 KB |
Output is correct |
46 |
Correct |
137 ms |
134912 KB |
Output is correct |
47 |
Correct |
140 ms |
134908 KB |
Output is correct |
48 |
Correct |
138 ms |
134940 KB |
Output is correct |
49 |
Correct |
140 ms |
134948 KB |
Output is correct |
50 |
Correct |
163 ms |
134904 KB |
Output is correct |
51 |
Correct |
150 ms |
134968 KB |
Output is correct |
52 |
Correct |
151 ms |
135004 KB |
Output is correct |
53 |
Correct |
151 ms |
134904 KB |
Output is correct |
54 |
Correct |
154 ms |
135416 KB |
Output is correct |
55 |
Correct |
155 ms |
135424 KB |
Output is correct |
56 |
Correct |
193 ms |
138832 KB |
Output is correct |
57 |
Correct |
183 ms |
139032 KB |
Output is correct |
58 |
Correct |
187 ms |
138872 KB |
Output is correct |
59 |
Correct |
186 ms |
138076 KB |
Output is correct |
60 |
Correct |
183 ms |
139000 KB |
Output is correct |
61 |
Correct |
181 ms |
138872 KB |
Output is correct |
62 |
Correct |
181 ms |
138104 KB |
Output is correct |
63 |
Correct |
220 ms |
138076 KB |
Output is correct |
64 |
Correct |
181 ms |
138088 KB |
Output is correct |
65 |
Correct |
183 ms |
138872 KB |
Output is correct |
66 |
Correct |
219 ms |
138148 KB |
Output is correct |
67 |
Correct |
205 ms |
138364 KB |
Output is correct |
68 |
Correct |
182 ms |
138056 KB |
Output is correct |
69 |
Correct |
140 ms |
134948 KB |
Output is correct |
70 |
Correct |
139 ms |
134988 KB |
Output is correct |
71 |
Correct |
179 ms |
138204 KB |
Output is correct |
72 |
Correct |
184 ms |
138120 KB |
Output is correct |
73 |
Correct |
191 ms |
138196 KB |
Output is correct |
74 |
Correct |
138 ms |
134904 KB |
Output is correct |
75 |
Correct |
139 ms |
134904 KB |
Output is correct |
76 |
Correct |
146 ms |
134908 KB |
Output is correct |
77 |
Correct |
164 ms |
134960 KB |
Output is correct |
78 |
Correct |
234 ms |
137336 KB |
Output is correct |
79 |
Correct |
198 ms |
137428 KB |
Output is correct |
80 |
Correct |
249 ms |
137332 KB |
Output is correct |
81 |
Correct |
182 ms |
138156 KB |
Output is correct |
82 |
Correct |
233 ms |
137360 KB |
Output is correct |
83 |
Correct |
220 ms |
137320 KB |
Output is correct |
84 |
Correct |
139 ms |
135016 KB |
Output is correct |
85 |
Correct |
138 ms |
134888 KB |
Output is correct |
86 |
Correct |
138 ms |
134996 KB |
Output is correct |
87 |
Correct |
167 ms |
134860 KB |
Output is correct |
88 |
Correct |
146 ms |
135116 KB |
Output is correct |
89 |
Correct |
139 ms |
135072 KB |
Output is correct |
90 |
Correct |
138 ms |
134852 KB |
Output is correct |
91 |
Correct |
139 ms |
134904 KB |
Output is correct |
92 |
Correct |
139 ms |
135004 KB |
Output is correct |
93 |
Correct |
156 ms |
134904 KB |
Output is correct |
94 |
Correct |
139 ms |
135004 KB |
Output is correct |
95 |
Correct |
143 ms |
135032 KB |
Output is correct |
96 |
Correct |
138 ms |
134932 KB |
Output is correct |
97 |
Correct |
150 ms |
134948 KB |
Output is correct |
98 |
Correct |
152 ms |
134976 KB |
Output is correct |
99 |
Correct |
143 ms |
134892 KB |
Output is correct |
100 |
Correct |
148 ms |
135036 KB |
Output is correct |
101 |
Correct |
148 ms |
135288 KB |
Output is correct |
102 |
Correct |
144 ms |
135296 KB |
Output is correct |
103 |
Correct |
246 ms |
138248 KB |
Output is correct |
104 |
Correct |
230 ms |
138104 KB |
Output is correct |
105 |
Correct |
234 ms |
138104 KB |
Output is correct |
106 |
Correct |
235 ms |
137464 KB |
Output is correct |
107 |
Correct |
203 ms |
138104 KB |
Output is correct |
108 |
Correct |
208 ms |
138076 KB |
Output is correct |
109 |
Correct |
177 ms |
138232 KB |
Output is correct |
110 |
Correct |
180 ms |
138104 KB |
Output is correct |
111 |
Correct |
228 ms |
137388 KB |
Output is correct |
112 |
Correct |
237 ms |
138232 KB |
Output is correct |
113 |
Correct |
209 ms |
137464 KB |
Output is correct |
114 |
Correct |
232 ms |
137432 KB |
Output is correct |
115 |
Correct |
243 ms |
137336 KB |
Output is correct |