#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define N 200005
ll n,fix[N],ans,f[2*N];
pair< vector<ll>,ll > v1[N],v2[N];
void upd(ll u)
{
u++;
while (u<=2*n)
{
f[u]++;
u+=(u&(-u));
}
return;
}
ll get(ll u,ll v)
{
v++;
ll tans=0;
while (v>0)
{
tans+=f[v];
v-=(v&(-v));
}
while (u>0)
{
tans-=f[u];
u-=(u&(-u));
}
return tans;
}
ll count_swaps(vector<int> a)
{
n=a.size()/2;
for (int i=0; i<2*n; i++)
{
if (a[i]<0)
{
v1[-a[i]].F.pb(i);
if ( v2[-a[i]].F.size()-v2[-a[i]].S>0 )
{
//cout<<i<<" "<<(v2[-a[i]].F)[ v2[-a[i]].S ]<<endl;
fix[i]= (v2[-a[i]].F)[ v2[-a[i]].S ];
fix[ (v2[-a[i]].F)[ v2[-a[i]].S ] ]
=(v2[-a[i]].F)[ v2[-a[i]].S ];
v1[-a[i]].S++;
v2[-a[i]].S++;
}
}
else
{
v2[a[i]].F.pb(i);
if ( v1[a[i]].F.size()-v1[a[i]].S>0 )
{
//cout<<i<<" "<<(v1[a[i]].F)[ v1[a[i]].S ]<<endl;
fix[i]= (v1[a[i]].F)[ v1[a[i]].S ];
fix[ (v1[a[i]].F)[ v1[a[i]].S ] ]
=(v1[a[i]].F)[ v1[a[i]].S ];
v2[a[i]].S++;
v1[a[i]].S++;
}
}
}
for (int i=0; i<2*n; i++)
{
upd(fix[i]);
if (i==fix[i])
continue;
ans+=get(fix[i]+1,i);
if (a[i]<a[fix[i]])
ans++;
}
return ans;
//cout<<ans<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12792 KB |
Output is correct |
2 |
Correct |
13 ms |
12792 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12792 KB |
Output is correct |
2 |
Correct |
13 ms |
12792 KB |
Output is correct |
3 |
Correct |
14 ms |
12920 KB |
Output is correct |
4 |
Correct |
13 ms |
12792 KB |
Output is correct |
5 |
Correct |
13 ms |
12784 KB |
Output is correct |
6 |
Correct |
12 ms |
12920 KB |
Output is correct |
7 |
Correct |
13 ms |
12892 KB |
Output is correct |
8 |
Correct |
13 ms |
12792 KB |
Output is correct |
9 |
Correct |
13 ms |
12792 KB |
Output is correct |
10 |
Correct |
13 ms |
12792 KB |
Output is correct |
11 |
Correct |
12 ms |
12892 KB |
Output is correct |
12 |
Correct |
12 ms |
12920 KB |
Output is correct |
13 |
Correct |
13 ms |
12792 KB |
Output is correct |
14 |
Correct |
13 ms |
12792 KB |
Output is correct |
15 |
Correct |
13 ms |
12920 KB |
Output is correct |
16 |
Correct |
12 ms |
12792 KB |
Output is correct |
17 |
Correct |
12 ms |
12920 KB |
Output is correct |
18 |
Correct |
13 ms |
12920 KB |
Output is correct |
19 |
Correct |
15 ms |
12796 KB |
Output is correct |
20 |
Correct |
15 ms |
12792 KB |
Output is correct |
21 |
Correct |
13 ms |
12920 KB |
Output is correct |
22 |
Correct |
13 ms |
12792 KB |
Output is correct |
23 |
Correct |
13 ms |
12920 KB |
Output is correct |
24 |
Correct |
16 ms |
12792 KB |
Output is correct |
25 |
Correct |
15 ms |
12792 KB |
Output is correct |
26 |
Correct |
15 ms |
12792 KB |
Output is correct |
27 |
Correct |
13 ms |
12792 KB |
Output is correct |
28 |
Correct |
16 ms |
12792 KB |
Output is correct |
29 |
Correct |
15 ms |
12792 KB |
Output is correct |
30 |
Correct |
15 ms |
12920 KB |
Output is correct |
31 |
Correct |
13 ms |
12920 KB |
Output is correct |
32 |
Correct |
13 ms |
12792 KB |
Output is correct |
33 |
Correct |
13 ms |
12792 KB |
Output is correct |
34 |
Correct |
15 ms |
12924 KB |
Output is correct |
35 |
Correct |
15 ms |
12792 KB |
Output is correct |
36 |
Correct |
18 ms |
12920 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12792 KB |
Output is correct |
2 |
Correct |
13 ms |
12792 KB |
Output is correct |
3 |
Correct |
13 ms |
12920 KB |
Output is correct |
4 |
Correct |
13 ms |
12792 KB |
Output is correct |
5 |
Correct |
13 ms |
12920 KB |
Output is correct |
6 |
Correct |
15 ms |
12920 KB |
Output is correct |
7 |
Correct |
13 ms |
12792 KB |
Output is correct |
8 |
Correct |
16 ms |
12920 KB |
Output is correct |
9 |
Correct |
16 ms |
12792 KB |
Output is correct |
10 |
Correct |
16 ms |
12920 KB |
Output is correct |
11 |
Correct |
13 ms |
12920 KB |
Output is correct |
12 |
Correct |
13 ms |
12792 KB |
Output is correct |
13 |
Correct |
16 ms |
12792 KB |
Output is correct |
14 |
Correct |
15 ms |
12792 KB |
Output is correct |
15 |
Correct |
13 ms |
12920 KB |
Output is correct |
16 |
Correct |
13 ms |
12920 KB |
Output is correct |
17 |
Correct |
13 ms |
12920 KB |
Output is correct |
18 |
Correct |
13 ms |
12892 KB |
Output is correct |
19 |
Correct |
13 ms |
12920 KB |
Output is correct |
20 |
Correct |
17 ms |
13560 KB |
Output is correct |
21 |
Correct |
17 ms |
13632 KB |
Output is correct |
22 |
Correct |
52 ms |
19244 KB |
Output is correct |
23 |
Correct |
56 ms |
19248 KB |
Output is correct |
24 |
Correct |
55 ms |
19208 KB |
Output is correct |
25 |
Correct |
54 ms |
18408 KB |
Output is correct |
26 |
Correct |
56 ms |
19280 KB |
Output is correct |
27 |
Correct |
49 ms |
19300 KB |
Output is correct |
28 |
Correct |
51 ms |
18536 KB |
Output is correct |
29 |
Correct |
56 ms |
18512 KB |
Output is correct |
30 |
Correct |
51 ms |
18412 KB |
Output is correct |
31 |
Correct |
55 ms |
19192 KB |
Output is correct |
32 |
Correct |
51 ms |
18444 KB |
Output is correct |
33 |
Correct |
49 ms |
18496 KB |
Output is correct |
34 |
Correct |
50 ms |
18412 KB |
Output is correct |
35 |
Correct |
13 ms |
12792 KB |
Output is correct |
36 |
Correct |
13 ms |
12792 KB |
Output is correct |
37 |
Correct |
51 ms |
18512 KB |
Output is correct |
38 |
Correct |
54 ms |
18556 KB |
Output is correct |
39 |
Correct |
51 ms |
18540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12920 KB |
Output is correct |
2 |
Correct |
13 ms |
12920 KB |
Output is correct |
3 |
Correct |
13 ms |
12892 KB |
Output is correct |
4 |
Correct |
13 ms |
12792 KB |
Output is correct |
5 |
Correct |
90 ms |
23032 KB |
Output is correct |
6 |
Correct |
85 ms |
19420 KB |
Output is correct |
7 |
Correct |
112 ms |
23032 KB |
Output is correct |
8 |
Correct |
55 ms |
18980 KB |
Output is correct |
9 |
Correct |
91 ms |
23032 KB |
Output is correct |
10 |
Correct |
97 ms |
20376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12792 KB |
Output is correct |
2 |
Correct |
13 ms |
12792 KB |
Output is correct |
3 |
Correct |
14 ms |
12920 KB |
Output is correct |
4 |
Correct |
13 ms |
12792 KB |
Output is correct |
5 |
Correct |
13 ms |
12784 KB |
Output is correct |
6 |
Correct |
12 ms |
12920 KB |
Output is correct |
7 |
Correct |
13 ms |
12892 KB |
Output is correct |
8 |
Correct |
13 ms |
12792 KB |
Output is correct |
9 |
Correct |
13 ms |
12792 KB |
Output is correct |
10 |
Correct |
13 ms |
12792 KB |
Output is correct |
11 |
Correct |
12 ms |
12892 KB |
Output is correct |
12 |
Correct |
12 ms |
12920 KB |
Output is correct |
13 |
Correct |
13 ms |
12792 KB |
Output is correct |
14 |
Correct |
13 ms |
12792 KB |
Output is correct |
15 |
Correct |
13 ms |
12920 KB |
Output is correct |
16 |
Correct |
12 ms |
12792 KB |
Output is correct |
17 |
Correct |
12 ms |
12920 KB |
Output is correct |
18 |
Correct |
13 ms |
12920 KB |
Output is correct |
19 |
Correct |
15 ms |
12796 KB |
Output is correct |
20 |
Correct |
15 ms |
12792 KB |
Output is correct |
21 |
Correct |
13 ms |
12920 KB |
Output is correct |
22 |
Correct |
13 ms |
12792 KB |
Output is correct |
23 |
Correct |
13 ms |
12920 KB |
Output is correct |
24 |
Correct |
16 ms |
12792 KB |
Output is correct |
25 |
Correct |
15 ms |
12792 KB |
Output is correct |
26 |
Correct |
15 ms |
12792 KB |
Output is correct |
27 |
Correct |
13 ms |
12792 KB |
Output is correct |
28 |
Correct |
16 ms |
12792 KB |
Output is correct |
29 |
Correct |
15 ms |
12792 KB |
Output is correct |
30 |
Correct |
15 ms |
12920 KB |
Output is correct |
31 |
Correct |
13 ms |
12920 KB |
Output is correct |
32 |
Correct |
13 ms |
12792 KB |
Output is correct |
33 |
Correct |
13 ms |
12792 KB |
Output is correct |
34 |
Correct |
15 ms |
12924 KB |
Output is correct |
35 |
Correct |
15 ms |
12792 KB |
Output is correct |
36 |
Correct |
18 ms |
12920 KB |
Output is correct |
37 |
Correct |
13 ms |
12920 KB |
Output is correct |
38 |
Correct |
12 ms |
12920 KB |
Output is correct |
39 |
Correct |
13 ms |
12920 KB |
Output is correct |
40 |
Correct |
13 ms |
12920 KB |
Output is correct |
41 |
Correct |
14 ms |
12920 KB |
Output is correct |
42 |
Correct |
13 ms |
12920 KB |
Output is correct |
43 |
Correct |
13 ms |
12920 KB |
Output is correct |
44 |
Correct |
16 ms |
12920 KB |
Output is correct |
45 |
Correct |
14 ms |
12920 KB |
Output is correct |
46 |
Correct |
14 ms |
12928 KB |
Output is correct |
47 |
Correct |
16 ms |
12920 KB |
Output is correct |
48 |
Correct |
14 ms |
12924 KB |
Output is correct |
49 |
Correct |
14 ms |
12920 KB |
Output is correct |
50 |
Correct |
11 ms |
12920 KB |
Output is correct |
51 |
Correct |
13 ms |
12920 KB |
Output is correct |
52 |
Correct |
14 ms |
12920 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12792 KB |
Output is correct |
2 |
Correct |
13 ms |
12792 KB |
Output is correct |
3 |
Correct |
14 ms |
12920 KB |
Output is correct |
4 |
Correct |
13 ms |
12792 KB |
Output is correct |
5 |
Correct |
13 ms |
12784 KB |
Output is correct |
6 |
Correct |
12 ms |
12920 KB |
Output is correct |
7 |
Correct |
13 ms |
12892 KB |
Output is correct |
8 |
Correct |
13 ms |
12792 KB |
Output is correct |
9 |
Correct |
13 ms |
12792 KB |
Output is correct |
10 |
Correct |
13 ms |
12792 KB |
Output is correct |
11 |
Correct |
12 ms |
12892 KB |
Output is correct |
12 |
Correct |
12 ms |
12920 KB |
Output is correct |
13 |
Correct |
13 ms |
12792 KB |
Output is correct |
14 |
Correct |
13 ms |
12792 KB |
Output is correct |
15 |
Correct |
13 ms |
12920 KB |
Output is correct |
16 |
Correct |
12 ms |
12792 KB |
Output is correct |
17 |
Correct |
12 ms |
12920 KB |
Output is correct |
18 |
Correct |
13 ms |
12920 KB |
Output is correct |
19 |
Correct |
15 ms |
12796 KB |
Output is correct |
20 |
Correct |
15 ms |
12792 KB |
Output is correct |
21 |
Correct |
13 ms |
12920 KB |
Output is correct |
22 |
Correct |
13 ms |
12792 KB |
Output is correct |
23 |
Correct |
13 ms |
12920 KB |
Output is correct |
24 |
Correct |
16 ms |
12792 KB |
Output is correct |
25 |
Correct |
15 ms |
12792 KB |
Output is correct |
26 |
Correct |
15 ms |
12792 KB |
Output is correct |
27 |
Correct |
13 ms |
12792 KB |
Output is correct |
28 |
Correct |
16 ms |
12792 KB |
Output is correct |
29 |
Correct |
15 ms |
12792 KB |
Output is correct |
30 |
Correct |
15 ms |
12920 KB |
Output is correct |
31 |
Correct |
13 ms |
12920 KB |
Output is correct |
32 |
Correct |
13 ms |
12792 KB |
Output is correct |
33 |
Correct |
13 ms |
12792 KB |
Output is correct |
34 |
Correct |
15 ms |
12924 KB |
Output is correct |
35 |
Correct |
15 ms |
12792 KB |
Output is correct |
36 |
Correct |
18 ms |
12920 KB |
Output is correct |
37 |
Correct |
13 ms |
12920 KB |
Output is correct |
38 |
Correct |
13 ms |
12792 KB |
Output is correct |
39 |
Correct |
13 ms |
12920 KB |
Output is correct |
40 |
Correct |
15 ms |
12920 KB |
Output is correct |
41 |
Correct |
13 ms |
12792 KB |
Output is correct |
42 |
Correct |
16 ms |
12920 KB |
Output is correct |
43 |
Correct |
16 ms |
12792 KB |
Output is correct |
44 |
Correct |
16 ms |
12920 KB |
Output is correct |
45 |
Correct |
13 ms |
12920 KB |
Output is correct |
46 |
Correct |
13 ms |
12792 KB |
Output is correct |
47 |
Correct |
16 ms |
12792 KB |
Output is correct |
48 |
Correct |
15 ms |
12792 KB |
Output is correct |
49 |
Correct |
13 ms |
12920 KB |
Output is correct |
50 |
Correct |
13 ms |
12920 KB |
Output is correct |
51 |
Correct |
13 ms |
12920 KB |
Output is correct |
52 |
Correct |
13 ms |
12892 KB |
Output is correct |
53 |
Correct |
13 ms |
12920 KB |
Output is correct |
54 |
Correct |
17 ms |
13560 KB |
Output is correct |
55 |
Correct |
17 ms |
13632 KB |
Output is correct |
56 |
Correct |
52 ms |
19244 KB |
Output is correct |
57 |
Correct |
56 ms |
19248 KB |
Output is correct |
58 |
Correct |
55 ms |
19208 KB |
Output is correct |
59 |
Correct |
54 ms |
18408 KB |
Output is correct |
60 |
Correct |
56 ms |
19280 KB |
Output is correct |
61 |
Correct |
49 ms |
19300 KB |
Output is correct |
62 |
Correct |
51 ms |
18536 KB |
Output is correct |
63 |
Correct |
56 ms |
18512 KB |
Output is correct |
64 |
Correct |
51 ms |
18412 KB |
Output is correct |
65 |
Correct |
55 ms |
19192 KB |
Output is correct |
66 |
Correct |
51 ms |
18444 KB |
Output is correct |
67 |
Correct |
49 ms |
18496 KB |
Output is correct |
68 |
Correct |
50 ms |
18412 KB |
Output is correct |
69 |
Correct |
13 ms |
12792 KB |
Output is correct |
70 |
Correct |
13 ms |
12792 KB |
Output is correct |
71 |
Correct |
51 ms |
18512 KB |
Output is correct |
72 |
Correct |
54 ms |
18556 KB |
Output is correct |
73 |
Correct |
51 ms |
18540 KB |
Output is correct |
74 |
Correct |
13 ms |
12920 KB |
Output is correct |
75 |
Correct |
13 ms |
12920 KB |
Output is correct |
76 |
Correct |
13 ms |
12892 KB |
Output is correct |
77 |
Correct |
13 ms |
12792 KB |
Output is correct |
78 |
Correct |
90 ms |
23032 KB |
Output is correct |
79 |
Correct |
85 ms |
19420 KB |
Output is correct |
80 |
Correct |
112 ms |
23032 KB |
Output is correct |
81 |
Correct |
55 ms |
18980 KB |
Output is correct |
82 |
Correct |
91 ms |
23032 KB |
Output is correct |
83 |
Correct |
97 ms |
20376 KB |
Output is correct |
84 |
Correct |
13 ms |
12920 KB |
Output is correct |
85 |
Correct |
12 ms |
12920 KB |
Output is correct |
86 |
Correct |
13 ms |
12920 KB |
Output is correct |
87 |
Correct |
13 ms |
12920 KB |
Output is correct |
88 |
Correct |
14 ms |
12920 KB |
Output is correct |
89 |
Correct |
13 ms |
12920 KB |
Output is correct |
90 |
Correct |
13 ms |
12920 KB |
Output is correct |
91 |
Correct |
16 ms |
12920 KB |
Output is correct |
92 |
Correct |
14 ms |
12920 KB |
Output is correct |
93 |
Correct |
14 ms |
12928 KB |
Output is correct |
94 |
Correct |
16 ms |
12920 KB |
Output is correct |
95 |
Correct |
14 ms |
12924 KB |
Output is correct |
96 |
Correct |
14 ms |
12920 KB |
Output is correct |
97 |
Correct |
11 ms |
12920 KB |
Output is correct |
98 |
Correct |
13 ms |
12920 KB |
Output is correct |
99 |
Correct |
14 ms |
12920 KB |
Output is correct |
100 |
Correct |
13 ms |
12920 KB |
Output is correct |
101 |
Correct |
20 ms |
13816 KB |
Output is correct |
102 |
Correct |
20 ms |
13560 KB |
Output is correct |
103 |
Correct |
136 ms |
23908 KB |
Output is correct |
104 |
Correct |
94 ms |
23928 KB |
Output is correct |
105 |
Correct |
98 ms |
21400 KB |
Output is correct |
106 |
Correct |
97 ms |
22976 KB |
Output is correct |
107 |
Correct |
73 ms |
20444 KB |
Output is correct |
108 |
Correct |
79 ms |
20472 KB |
Output is correct |
109 |
Correct |
52 ms |
19180 KB |
Output is correct |
110 |
Correct |
50 ms |
18512 KB |
Output is correct |
111 |
Correct |
101 ms |
22316 KB |
Output is correct |
112 |
Correct |
124 ms |
22392 KB |
Output is correct |
113 |
Correct |
85 ms |
19448 KB |
Output is correct |
114 |
Correct |
99 ms |
23072 KB |
Output is correct |
115 |
Correct |
94 ms |
22992 KB |
Output is correct |