#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MX=2e5+5;
struct fenwick {
int t[MX];
void upd(int v, int x) {
v++;
for(int i=v;i<MX;i+=i&-i) t[i]+=x;
}
int que(int v) {
v++;
int res=0;
for(int i=v;i>0;i-=i&-i) res+=t[i];
return res;
}
} ft;
map<int, vector<int>> pos;
long long count_swaps(vector<int> S) {
int N=S.size()/2;
ll ans=0;
for(int i=0;i<2*N;i++) ft.upd(i,1);
set<int> st;
for(int i=2*N-1;i>=0;i--) {
pos[S[i]].push_back(i);
st.insert(i);
}
for(int i=1;i<2*N;i+=2) {
int b=*st.begin();
ft.upd(b,-1);
st.erase(st.begin());
pos[S[b]].pop_back();
int j=pos[-S[b]].back();
pos[-S[b]].pop_back();
ft.upd(j,-1);
st.erase(j);
ans+=ft.que(j);
if(S[b]>0) {
ans++;
}
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
444 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
444 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
604 KB |
Output is correct |
19 |
Correct |
1 ms |
604 KB |
Output is correct |
20 |
Correct |
5 ms |
1628 KB |
Output is correct |
21 |
Correct |
5 ms |
1628 KB |
Output is correct |
22 |
Correct |
66 ms |
13988 KB |
Output is correct |
23 |
Correct |
59 ms |
14144 KB |
Output is correct |
24 |
Correct |
68 ms |
14148 KB |
Output is correct |
25 |
Correct |
56 ms |
14024 KB |
Output is correct |
26 |
Correct |
72 ms |
14104 KB |
Output is correct |
27 |
Correct |
56 ms |
14032 KB |
Output is correct |
28 |
Correct |
56 ms |
14284 KB |
Output is correct |
29 |
Correct |
56 ms |
14024 KB |
Output is correct |
30 |
Correct |
56 ms |
14028 KB |
Output is correct |
31 |
Correct |
63 ms |
14044 KB |
Output is correct |
32 |
Correct |
57 ms |
14032 KB |
Output is correct |
33 |
Correct |
56 ms |
14024 KB |
Output is correct |
34 |
Correct |
58 ms |
14028 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
57 ms |
14192 KB |
Output is correct |
38 |
Correct |
58 ms |
14052 KB |
Output is correct |
39 |
Correct |
61 ms |
14188 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
271 ms |
35152 KB |
Output is correct |
6 |
Correct |
133 ms |
16208 KB |
Output is correct |
7 |
Correct |
258 ms |
35152 KB |
Output is correct |
8 |
Correct |
57 ms |
14064 KB |
Output is correct |
9 |
Correct |
286 ms |
35156 KB |
Output is correct |
10 |
Correct |
203 ms |
24344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
1 ms |
348 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
1 ms |
348 KB |
Output is correct |
41 |
Correct |
2 ms |
604 KB |
Output is correct |
42 |
Correct |
2 ms |
668 KB |
Output is correct |
43 |
Correct |
1 ms |
604 KB |
Output is correct |
44 |
Correct |
1 ms |
604 KB |
Output is correct |
45 |
Correct |
2 ms |
604 KB |
Output is correct |
46 |
Correct |
1 ms |
604 KB |
Output is correct |
47 |
Correct |
1 ms |
604 KB |
Output is correct |
48 |
Correct |
2 ms |
604 KB |
Output is correct |
49 |
Correct |
1 ms |
604 KB |
Output is correct |
50 |
Correct |
1 ms |
604 KB |
Output is correct |
51 |
Correct |
1 ms |
348 KB |
Output is correct |
52 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
1 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
444 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
344 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
344 KB |
Output is correct |
45 |
Correct |
0 ms |
348 KB |
Output is correct |
46 |
Correct |
1 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
444 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
1 ms |
604 KB |
Output is correct |
53 |
Correct |
1 ms |
604 KB |
Output is correct |
54 |
Correct |
5 ms |
1628 KB |
Output is correct |
55 |
Correct |
5 ms |
1628 KB |
Output is correct |
56 |
Correct |
66 ms |
13988 KB |
Output is correct |
57 |
Correct |
59 ms |
14144 KB |
Output is correct |
58 |
Correct |
68 ms |
14148 KB |
Output is correct |
59 |
Correct |
56 ms |
14024 KB |
Output is correct |
60 |
Correct |
72 ms |
14104 KB |
Output is correct |
61 |
Correct |
56 ms |
14032 KB |
Output is correct |
62 |
Correct |
56 ms |
14284 KB |
Output is correct |
63 |
Correct |
56 ms |
14024 KB |
Output is correct |
64 |
Correct |
56 ms |
14028 KB |
Output is correct |
65 |
Correct |
63 ms |
14044 KB |
Output is correct |
66 |
Correct |
57 ms |
14032 KB |
Output is correct |
67 |
Correct |
56 ms |
14024 KB |
Output is correct |
68 |
Correct |
58 ms |
14028 KB |
Output is correct |
69 |
Correct |
0 ms |
348 KB |
Output is correct |
70 |
Correct |
0 ms |
348 KB |
Output is correct |
71 |
Correct |
57 ms |
14192 KB |
Output is correct |
72 |
Correct |
58 ms |
14052 KB |
Output is correct |
73 |
Correct |
61 ms |
14188 KB |
Output is correct |
74 |
Correct |
0 ms |
344 KB |
Output is correct |
75 |
Correct |
0 ms |
348 KB |
Output is correct |
76 |
Correct |
1 ms |
348 KB |
Output is correct |
77 |
Correct |
0 ms |
348 KB |
Output is correct |
78 |
Correct |
271 ms |
35152 KB |
Output is correct |
79 |
Correct |
133 ms |
16208 KB |
Output is correct |
80 |
Correct |
258 ms |
35152 KB |
Output is correct |
81 |
Correct |
57 ms |
14064 KB |
Output is correct |
82 |
Correct |
286 ms |
35156 KB |
Output is correct |
83 |
Correct |
203 ms |
24344 KB |
Output is correct |
84 |
Correct |
0 ms |
348 KB |
Output is correct |
85 |
Correct |
1 ms |
348 KB |
Output is correct |
86 |
Correct |
1 ms |
348 KB |
Output is correct |
87 |
Correct |
1 ms |
348 KB |
Output is correct |
88 |
Correct |
2 ms |
604 KB |
Output is correct |
89 |
Correct |
2 ms |
668 KB |
Output is correct |
90 |
Correct |
1 ms |
604 KB |
Output is correct |
91 |
Correct |
1 ms |
604 KB |
Output is correct |
92 |
Correct |
2 ms |
604 KB |
Output is correct |
93 |
Correct |
1 ms |
604 KB |
Output is correct |
94 |
Correct |
1 ms |
604 KB |
Output is correct |
95 |
Correct |
2 ms |
604 KB |
Output is correct |
96 |
Correct |
1 ms |
604 KB |
Output is correct |
97 |
Correct |
1 ms |
604 KB |
Output is correct |
98 |
Correct |
1 ms |
348 KB |
Output is correct |
99 |
Correct |
1 ms |
604 KB |
Output is correct |
100 |
Correct |
2 ms |
604 KB |
Output is correct |
101 |
Correct |
17 ms |
3700 KB |
Output is correct |
102 |
Correct |
12 ms |
2244 KB |
Output is correct |
103 |
Correct |
430 ms |
35336 KB |
Output is correct |
104 |
Correct |
235 ms |
35208 KB |
Output is correct |
105 |
Correct |
219 ms |
25716 KB |
Output is correct |
106 |
Correct |
271 ms |
35172 KB |
Output is correct |
107 |
Correct |
144 ms |
16724 KB |
Output is correct |
108 |
Correct |
152 ms |
18648 KB |
Output is correct |
109 |
Correct |
84 ms |
14028 KB |
Output is correct |
110 |
Correct |
60 ms |
14224 KB |
Output is correct |
111 |
Correct |
248 ms |
32644 KB |
Output is correct |
112 |
Correct |
303 ms |
30340 KB |
Output is correct |
113 |
Correct |
175 ms |
16724 KB |
Output is correct |
114 |
Correct |
265 ms |
35252 KB |
Output is correct |
115 |
Correct |
238 ms |
35156 KB |
Output is correct |