#include <bits/stdc++.h>
using namespace std;
int i,j,n,t,ans,k,b[200001],fix[200001],c[200001],seg[200001];
pair <int,int> a[200001];
map <int,int> m;
vector <int> v[200001];
void upd(int h,int l,int r,int val,int ind) {
if (ind<l || ind>r) return;
if (l==ind && r==ind) {seg[h]=1;return;}
upd(h*2,l,(l+r)/2,val,ind);
upd(h*2+1,(l+r)/2+1,r,val,ind);
seg[h]=seg[h*2]+seg[h*2+1];
}
int get(int h,int l,int r,int L,int R) {
if (l>R || r<L) return 0;
if (l>=L && r<=R) return seg[h];
return get(h*2,l,(l+r)/2,L,R)+get(h*2+1,(l+r)/2+1,r,L,R);
}
int64_t count_swaps(vector<int> p){
n=p.size()/2;
for (i=1;i<=2*n;i++) {
b[i]=p[i-1];
c[i]=b[i];
if (b[i]>0) {fix[b[i]]++;v[b[i]].push_back(i);}
}
for (i=1;i<=2*n;i++) {
m[b[i]]=0;
if (b[i]<0) {v[abs(b[i])].push_back(i);}
}
for (i=1;i<=2*n;i++) {
if (b[i]>0) m[b[i]]=0;
else
m[b[i]]+=1;
}
t=1;
for (i=1;i<=2*n;i++) {
if (b[i]==0) continue;
if (b[i]>0) {
a[t].first=v[b[i]][m[-1*b[i]]];
a[t].second=i;
m[-1*b[i]]++;
m[b[i]]++;
b[a[t].first]=0;
b[a[t].second]=0;
t++;
}
else
{
a[t].first=i;
a[t].second=v[-1*b[i]][m[-1*b[i]]];
m[-1*b[i]]++;
m[b[i]]++;
b[a[t].first]=0;
b[a[t].second]=0;
t++;
}
}
for (i=1;i<=n;i++) {
if (c[min(a[i].first,a[i].second)]>0) {ans=ans+max(a[i].first,a[i].second)-min(a[i].first,a[i].second);}
else
ans=ans+max(a[i].second,a[i].first)-min(a[i].second,a[i].first)-1;
}
for (i=1;i<=n;i++) {
ans=ans-get(1,1,2*n+1,min(a[i].first,a[i].second),max(a[i].first,a[i].second));
upd(1,1,2*n+1,1,a[i].first);
upd(1,1,2*n+1,1,a[i].second);
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
3 |
Correct |
6 ms |
4984 KB |
Output is correct |
4 |
Correct |
6 ms |
4984 KB |
Output is correct |
5 |
Correct |
6 ms |
4984 KB |
Output is correct |
6 |
Correct |
6 ms |
4984 KB |
Output is correct |
7 |
Correct |
6 ms |
5112 KB |
Output is correct |
8 |
Correct |
6 ms |
5112 KB |
Output is correct |
9 |
Correct |
6 ms |
5112 KB |
Output is correct |
10 |
Correct |
6 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
5112 KB |
Output is correct |
12 |
Correct |
6 ms |
4984 KB |
Output is correct |
13 |
Correct |
7 ms |
4984 KB |
Output is correct |
14 |
Correct |
3 ms |
5112 KB |
Output is correct |
15 |
Correct |
7 ms |
5116 KB |
Output is correct |
16 |
Correct |
7 ms |
5112 KB |
Output is correct |
17 |
Correct |
7 ms |
5112 KB |
Output is correct |
18 |
Correct |
7 ms |
5112 KB |
Output is correct |
19 |
Correct |
7 ms |
4984 KB |
Output is correct |
20 |
Correct |
7 ms |
4988 KB |
Output is correct |
21 |
Correct |
7 ms |
4984 KB |
Output is correct |
22 |
Correct |
7 ms |
5112 KB |
Output is correct |
23 |
Correct |
7 ms |
4984 KB |
Output is correct |
24 |
Correct |
7 ms |
4984 KB |
Output is correct |
25 |
Correct |
6 ms |
4984 KB |
Output is correct |
26 |
Correct |
6 ms |
4988 KB |
Output is correct |
27 |
Correct |
6 ms |
4984 KB |
Output is correct |
28 |
Correct |
4 ms |
5112 KB |
Output is correct |
29 |
Correct |
7 ms |
4984 KB |
Output is correct |
30 |
Correct |
7 ms |
5112 KB |
Output is correct |
31 |
Correct |
8 ms |
4984 KB |
Output is correct |
32 |
Correct |
7 ms |
5112 KB |
Output is correct |
33 |
Correct |
7 ms |
5112 KB |
Output is correct |
34 |
Correct |
7 ms |
5112 KB |
Output is correct |
35 |
Correct |
6 ms |
5084 KB |
Output is correct |
36 |
Correct |
6 ms |
5084 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
3 |
Correct |
6 ms |
4984 KB |
Output is correct |
4 |
Correct |
6 ms |
5116 KB |
Output is correct |
5 |
Correct |
6 ms |
5112 KB |
Output is correct |
6 |
Correct |
6 ms |
5112 KB |
Output is correct |
7 |
Correct |
6 ms |
5036 KB |
Output is correct |
8 |
Correct |
6 ms |
4984 KB |
Output is correct |
9 |
Correct |
6 ms |
5112 KB |
Output is correct |
10 |
Correct |
6 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
5112 KB |
Output is correct |
12 |
Correct |
6 ms |
5112 KB |
Output is correct |
13 |
Correct |
6 ms |
5112 KB |
Output is correct |
14 |
Correct |
6 ms |
5112 KB |
Output is correct |
15 |
Correct |
6 ms |
5112 KB |
Output is correct |
16 |
Correct |
6 ms |
5112 KB |
Output is correct |
17 |
Correct |
7 ms |
5112 KB |
Output is correct |
18 |
Correct |
8 ms |
5112 KB |
Output is correct |
19 |
Correct |
7 ms |
5112 KB |
Output is correct |
20 |
Correct |
15 ms |
5880 KB |
Output is correct |
21 |
Correct |
16 ms |
5880 KB |
Output is correct |
22 |
Incorrect |
112 ms |
11200 KB |
Output isn't correct |
23 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
5112 KB |
Output is correct |
2 |
Correct |
6 ms |
5020 KB |
Output is correct |
3 |
Correct |
6 ms |
5112 KB |
Output is correct |
4 |
Correct |
7 ms |
5004 KB |
Output is correct |
5 |
Incorrect |
498 ms |
22776 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
3 |
Correct |
6 ms |
4984 KB |
Output is correct |
4 |
Correct |
6 ms |
4984 KB |
Output is correct |
5 |
Correct |
6 ms |
4984 KB |
Output is correct |
6 |
Correct |
6 ms |
4984 KB |
Output is correct |
7 |
Correct |
6 ms |
5112 KB |
Output is correct |
8 |
Correct |
6 ms |
5112 KB |
Output is correct |
9 |
Correct |
6 ms |
5112 KB |
Output is correct |
10 |
Correct |
6 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
5112 KB |
Output is correct |
12 |
Correct |
6 ms |
4984 KB |
Output is correct |
13 |
Correct |
7 ms |
4984 KB |
Output is correct |
14 |
Correct |
3 ms |
5112 KB |
Output is correct |
15 |
Correct |
7 ms |
5116 KB |
Output is correct |
16 |
Correct |
7 ms |
5112 KB |
Output is correct |
17 |
Correct |
7 ms |
5112 KB |
Output is correct |
18 |
Correct |
7 ms |
5112 KB |
Output is correct |
19 |
Correct |
7 ms |
4984 KB |
Output is correct |
20 |
Correct |
7 ms |
4988 KB |
Output is correct |
21 |
Correct |
7 ms |
4984 KB |
Output is correct |
22 |
Correct |
7 ms |
5112 KB |
Output is correct |
23 |
Correct |
7 ms |
4984 KB |
Output is correct |
24 |
Correct |
7 ms |
4984 KB |
Output is correct |
25 |
Correct |
6 ms |
4984 KB |
Output is correct |
26 |
Correct |
6 ms |
4988 KB |
Output is correct |
27 |
Correct |
6 ms |
4984 KB |
Output is correct |
28 |
Correct |
4 ms |
5112 KB |
Output is correct |
29 |
Correct |
7 ms |
4984 KB |
Output is correct |
30 |
Correct |
7 ms |
5112 KB |
Output is correct |
31 |
Correct |
8 ms |
4984 KB |
Output is correct |
32 |
Correct |
7 ms |
5112 KB |
Output is correct |
33 |
Correct |
7 ms |
5112 KB |
Output is correct |
34 |
Correct |
7 ms |
5112 KB |
Output is correct |
35 |
Correct |
6 ms |
5084 KB |
Output is correct |
36 |
Correct |
6 ms |
5084 KB |
Output is correct |
37 |
Correct |
6 ms |
5112 KB |
Output is correct |
38 |
Correct |
6 ms |
5112 KB |
Output is correct |
39 |
Correct |
6 ms |
4984 KB |
Output is correct |
40 |
Correct |
6 ms |
5112 KB |
Output is correct |
41 |
Correct |
20 ms |
5240 KB |
Output is correct |
42 |
Correct |
7 ms |
5240 KB |
Output is correct |
43 |
Correct |
8 ms |
5240 KB |
Output is correct |
44 |
Correct |
8 ms |
5112 KB |
Output is correct |
45 |
Correct |
7 ms |
5112 KB |
Output is correct |
46 |
Correct |
7 ms |
5112 KB |
Output is correct |
47 |
Correct |
8 ms |
5112 KB |
Output is correct |
48 |
Correct |
7 ms |
5112 KB |
Output is correct |
49 |
Correct |
7 ms |
5112 KB |
Output is correct |
50 |
Correct |
7 ms |
5112 KB |
Output is correct |
51 |
Correct |
7 ms |
5112 KB |
Output is correct |
52 |
Correct |
8 ms |
5240 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
3 |
Correct |
6 ms |
4984 KB |
Output is correct |
4 |
Correct |
6 ms |
4984 KB |
Output is correct |
5 |
Correct |
6 ms |
4984 KB |
Output is correct |
6 |
Correct |
6 ms |
4984 KB |
Output is correct |
7 |
Correct |
6 ms |
5112 KB |
Output is correct |
8 |
Correct |
6 ms |
5112 KB |
Output is correct |
9 |
Correct |
6 ms |
5112 KB |
Output is correct |
10 |
Correct |
6 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
5112 KB |
Output is correct |
12 |
Correct |
6 ms |
4984 KB |
Output is correct |
13 |
Correct |
7 ms |
4984 KB |
Output is correct |
14 |
Correct |
3 ms |
5112 KB |
Output is correct |
15 |
Correct |
7 ms |
5116 KB |
Output is correct |
16 |
Correct |
7 ms |
5112 KB |
Output is correct |
17 |
Correct |
7 ms |
5112 KB |
Output is correct |
18 |
Correct |
7 ms |
5112 KB |
Output is correct |
19 |
Correct |
7 ms |
4984 KB |
Output is correct |
20 |
Correct |
7 ms |
4988 KB |
Output is correct |
21 |
Correct |
7 ms |
4984 KB |
Output is correct |
22 |
Correct |
7 ms |
5112 KB |
Output is correct |
23 |
Correct |
7 ms |
4984 KB |
Output is correct |
24 |
Correct |
7 ms |
4984 KB |
Output is correct |
25 |
Correct |
6 ms |
4984 KB |
Output is correct |
26 |
Correct |
6 ms |
4988 KB |
Output is correct |
27 |
Correct |
6 ms |
4984 KB |
Output is correct |
28 |
Correct |
4 ms |
5112 KB |
Output is correct |
29 |
Correct |
7 ms |
4984 KB |
Output is correct |
30 |
Correct |
7 ms |
5112 KB |
Output is correct |
31 |
Correct |
8 ms |
4984 KB |
Output is correct |
32 |
Correct |
7 ms |
5112 KB |
Output is correct |
33 |
Correct |
7 ms |
5112 KB |
Output is correct |
34 |
Correct |
7 ms |
5112 KB |
Output is correct |
35 |
Correct |
6 ms |
5084 KB |
Output is correct |
36 |
Correct |
6 ms |
5084 KB |
Output is correct |
37 |
Correct |
6 ms |
4984 KB |
Output is correct |
38 |
Correct |
6 ms |
5116 KB |
Output is correct |
39 |
Correct |
6 ms |
5112 KB |
Output is correct |
40 |
Correct |
6 ms |
5112 KB |
Output is correct |
41 |
Correct |
6 ms |
5036 KB |
Output is correct |
42 |
Correct |
6 ms |
4984 KB |
Output is correct |
43 |
Correct |
6 ms |
5112 KB |
Output is correct |
44 |
Correct |
6 ms |
4984 KB |
Output is correct |
45 |
Correct |
6 ms |
5112 KB |
Output is correct |
46 |
Correct |
6 ms |
5112 KB |
Output is correct |
47 |
Correct |
6 ms |
5112 KB |
Output is correct |
48 |
Correct |
6 ms |
5112 KB |
Output is correct |
49 |
Correct |
6 ms |
5112 KB |
Output is correct |
50 |
Correct |
6 ms |
5112 KB |
Output is correct |
51 |
Correct |
7 ms |
5112 KB |
Output is correct |
52 |
Correct |
8 ms |
5112 KB |
Output is correct |
53 |
Correct |
7 ms |
5112 KB |
Output is correct |
54 |
Correct |
15 ms |
5880 KB |
Output is correct |
55 |
Correct |
16 ms |
5880 KB |
Output is correct |
56 |
Incorrect |
112 ms |
11200 KB |
Output isn't correct |
57 |
Halted |
0 ms |
0 KB |
- |