/*input
*/
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pdd;
#define IOS ios_base::sync_with_stdio(0); cin.tie(0)
#define ALL(a) a.begin(),a.end()
#define SZ(a) ((int)a.size())
#define F first
#define S second
#define REP(i,n) for(int i=0;i<((int)n);i++)
#define eb emplace_back
#define pb push_back
#define MP(a,b) make_pair(a,b)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
#define EL cout<<'\n'
template<typename T1,typename T2>
ostream& operator<<(ostream& out,pair<T1,T2> P){
out<<'('<<P.F<<','<<P.S<<')';
return out;
}
template<typename T>
ostream& operator<<(ostream& out,vector<T> V){
REP(i,SZ(V)) out<<V[i]<<((i!=SZ(V)-1)?" ":"");
return out;
}
#define version 20190814
//}}}
const ll maxn=100005;
const ll maxlg=20;
const ll INF64=1e18;
const int INF=0x3f3f3f3f;
const ll MOD=ll(1e9+7);
const ld PI=acos(-1);
const ld eps=1e-9;
//const ll p=880301;
//const ll P=31;
ll mypow(ll a,ll b){
ll res=1LL;
while(b){
if(b&1) res=res*a%MOD;
a=a*a%MOD;
b>>=1;
}
return res;
}
int n;
vector<pii> p;
vector<int> sz[maxn+maxn];
int pt[maxn+maxn];
int BIT[maxn+maxn];
int low(int i){
return i&-i;
}
void mdf(int n,int d){
for(int i=n;i<maxn+maxn;i+=low(i+1)){
BIT[i]+=d;
}
}
int query(int n){
int ret=0;
for(int i=n;i>=0;i-=low(i+1)){
ret+=BIT[i];
}
return ret;
}
int query(int l,int r){
return query(r-1)-query(l-1);
}
ll count_swaps(vector<int> a){
ll ans=0;
n=SZ(a)/2;
REP(i,n+n){
int cur=a[i];
if(pt[-cur+maxn]==SZ(sz[-cur+maxn])){
sz[cur+maxn].pb(i);
}
else{
p.eb(sz[maxn-cur][pt[maxn-cur]],i);
if(cur<0) ans++;
pt[maxn-cur]++;
}
}
sort(ALL(p));
for(int i=0;i<SZ(p);i++) for(int j=i+1;j<SZ(p);j++){
if(p[i].S<p[j].F);
else if(p[i].S<p[j].S) ans++;
else ans+=2;
}
// for(auto i:p){
// ans+=2*(query(i.S,n+2))+query(i.F,i.S);
// mdf(i.S,1);
// }
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
4988 KB |
Output is correct |
6 |
Correct |
6 ms |
4984 KB |
Output is correct |
7 |
Correct |
6 ms |
4984 KB |
Output is correct |
8 |
Correct |
6 ms |
4984 KB |
Output is correct |
9 |
Correct |
7 ms |
4984 KB |
Output is correct |
10 |
Correct |
7 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
4984 KB |
Output is correct |
12 |
Correct |
6 ms |
4988 KB |
Output is correct |
13 |
Correct |
6 ms |
4984 KB |
Output is correct |
14 |
Correct |
6 ms |
4988 KB |
Output is correct |
15 |
Correct |
6 ms |
4984 KB |
Output is correct |
16 |
Correct |
6 ms |
4984 KB |
Output is correct |
17 |
Correct |
6 ms |
4956 KB |
Output is correct |
18 |
Correct |
6 ms |
4984 KB |
Output is correct |
19 |
Correct |
6 ms |
4984 KB |
Output is correct |
20 |
Correct |
7 ms |
5092 KB |
Output is correct |
21 |
Correct |
6 ms |
4984 KB |
Output is correct |
22 |
Correct |
6 ms |
4984 KB |
Output is correct |
23 |
Correct |
6 ms |
4956 KB |
Output is correct |
24 |
Correct |
6 ms |
4984 KB |
Output is correct |
25 |
Correct |
6 ms |
4984 KB |
Output is correct |
26 |
Correct |
7 ms |
5100 KB |
Output is correct |
27 |
Correct |
6 ms |
4984 KB |
Output is correct |
28 |
Correct |
7 ms |
4984 KB |
Output is correct |
29 |
Correct |
6 ms |
4984 KB |
Output is correct |
30 |
Correct |
8 ms |
4984 KB |
Output is correct |
31 |
Correct |
8 ms |
4984 KB |
Output is correct |
32 |
Correct |
8 ms |
4984 KB |
Output is correct |
33 |
Correct |
7 ms |
4984 KB |
Output is correct |
34 |
Correct |
7 ms |
4984 KB |
Output is correct |
35 |
Correct |
6 ms |
4984 KB |
Output is correct |
36 |
Correct |
8 ms |
5056 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
6 ms |
4984 KB |
Output is correct |
3 |
Correct |
6 ms |
4988 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 |
4984 KB |
Output is correct |
8 |
Correct |
6 ms |
4984 KB |
Output is correct |
9 |
Correct |
6 ms |
4984 KB |
Output is correct |
10 |
Correct |
6 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
4984 KB |
Output is correct |
12 |
Correct |
6 ms |
4984 KB |
Output is correct |
13 |
Correct |
6 ms |
4984 KB |
Output is correct |
14 |
Correct |
6 ms |
4984 KB |
Output is correct |
15 |
Correct |
6 ms |
4984 KB |
Output is correct |
16 |
Correct |
6 ms |
4984 KB |
Output is correct |
17 |
Correct |
6 ms |
4984 KB |
Output is correct |
18 |
Correct |
7 ms |
4984 KB |
Output is correct |
19 |
Correct |
7 ms |
4984 KB |
Output is correct |
20 |
Correct |
35 ms |
5496 KB |
Output is correct |
21 |
Correct |
35 ms |
5496 KB |
Output is correct |
22 |
Execution timed out |
1073 ms |
9456 KB |
Time limit exceeded |
23 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
4984 KB |
Output is correct |
2 |
Correct |
7 ms |
4984 KB |
Output is correct |
3 |
Correct |
7 ms |
5112 KB |
Output is correct |
4 |
Correct |
6 ms |
4984 KB |
Output is correct |
5 |
Execution timed out |
1086 ms |
11252 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
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 |
4988 KB |
Output is correct |
6 |
Correct |
6 ms |
4984 KB |
Output is correct |
7 |
Correct |
6 ms |
4984 KB |
Output is correct |
8 |
Correct |
6 ms |
4984 KB |
Output is correct |
9 |
Correct |
7 ms |
4984 KB |
Output is correct |
10 |
Correct |
7 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
4984 KB |
Output is correct |
12 |
Correct |
6 ms |
4988 KB |
Output is correct |
13 |
Correct |
6 ms |
4984 KB |
Output is correct |
14 |
Correct |
6 ms |
4988 KB |
Output is correct |
15 |
Correct |
6 ms |
4984 KB |
Output is correct |
16 |
Correct |
6 ms |
4984 KB |
Output is correct |
17 |
Correct |
6 ms |
4956 KB |
Output is correct |
18 |
Correct |
6 ms |
4984 KB |
Output is correct |
19 |
Correct |
6 ms |
4984 KB |
Output is correct |
20 |
Correct |
7 ms |
5092 KB |
Output is correct |
21 |
Correct |
6 ms |
4984 KB |
Output is correct |
22 |
Correct |
6 ms |
4984 KB |
Output is correct |
23 |
Correct |
6 ms |
4956 KB |
Output is correct |
24 |
Correct |
6 ms |
4984 KB |
Output is correct |
25 |
Correct |
6 ms |
4984 KB |
Output is correct |
26 |
Correct |
7 ms |
5100 KB |
Output is correct |
27 |
Correct |
6 ms |
4984 KB |
Output is correct |
28 |
Correct |
7 ms |
4984 KB |
Output is correct |
29 |
Correct |
6 ms |
4984 KB |
Output is correct |
30 |
Correct |
8 ms |
4984 KB |
Output is correct |
31 |
Correct |
8 ms |
4984 KB |
Output is correct |
32 |
Correct |
8 ms |
4984 KB |
Output is correct |
33 |
Correct |
7 ms |
4984 KB |
Output is correct |
34 |
Correct |
7 ms |
4984 KB |
Output is correct |
35 |
Correct |
6 ms |
4984 KB |
Output is correct |
36 |
Correct |
8 ms |
5056 KB |
Output is correct |
37 |
Correct |
6 ms |
4984 KB |
Output is correct |
38 |
Correct |
6 ms |
4984 KB |
Output is correct |
39 |
Correct |
6 ms |
4984 KB |
Output is correct |
40 |
Correct |
7 ms |
4988 KB |
Output is correct |
41 |
Correct |
7 ms |
5112 KB |
Output is correct |
42 |
Correct |
7 ms |
5112 KB |
Output is correct |
43 |
Correct |
7 ms |
5112 KB |
Output is correct |
44 |
Correct |
7 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 |
7 ms |
5116 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 |
4984 KB |
Output is correct |
51 |
Correct |
7 ms |
4984 KB |
Output is correct |
52 |
Correct |
7 ms |
5112 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
4988 KB |
Output is correct |
6 |
Correct |
6 ms |
4984 KB |
Output is correct |
7 |
Correct |
6 ms |
4984 KB |
Output is correct |
8 |
Correct |
6 ms |
4984 KB |
Output is correct |
9 |
Correct |
7 ms |
4984 KB |
Output is correct |
10 |
Correct |
7 ms |
4984 KB |
Output is correct |
11 |
Correct |
6 ms |
4984 KB |
Output is correct |
12 |
Correct |
6 ms |
4988 KB |
Output is correct |
13 |
Correct |
6 ms |
4984 KB |
Output is correct |
14 |
Correct |
6 ms |
4988 KB |
Output is correct |
15 |
Correct |
6 ms |
4984 KB |
Output is correct |
16 |
Correct |
6 ms |
4984 KB |
Output is correct |
17 |
Correct |
6 ms |
4956 KB |
Output is correct |
18 |
Correct |
6 ms |
4984 KB |
Output is correct |
19 |
Correct |
6 ms |
4984 KB |
Output is correct |
20 |
Correct |
7 ms |
5092 KB |
Output is correct |
21 |
Correct |
6 ms |
4984 KB |
Output is correct |
22 |
Correct |
6 ms |
4984 KB |
Output is correct |
23 |
Correct |
6 ms |
4956 KB |
Output is correct |
24 |
Correct |
6 ms |
4984 KB |
Output is correct |
25 |
Correct |
6 ms |
4984 KB |
Output is correct |
26 |
Correct |
7 ms |
5100 KB |
Output is correct |
27 |
Correct |
6 ms |
4984 KB |
Output is correct |
28 |
Correct |
7 ms |
4984 KB |
Output is correct |
29 |
Correct |
6 ms |
4984 KB |
Output is correct |
30 |
Correct |
8 ms |
4984 KB |
Output is correct |
31 |
Correct |
8 ms |
4984 KB |
Output is correct |
32 |
Correct |
8 ms |
4984 KB |
Output is correct |
33 |
Correct |
7 ms |
4984 KB |
Output is correct |
34 |
Correct |
7 ms |
4984 KB |
Output is correct |
35 |
Correct |
6 ms |
4984 KB |
Output is correct |
36 |
Correct |
8 ms |
5056 KB |
Output is correct |
37 |
Correct |
6 ms |
4988 KB |
Output is correct |
38 |
Correct |
6 ms |
4984 KB |
Output is correct |
39 |
Correct |
6 ms |
4984 KB |
Output is correct |
40 |
Correct |
6 ms |
4984 KB |
Output is correct |
41 |
Correct |
6 ms |
4984 KB |
Output is correct |
42 |
Correct |
6 ms |
4984 KB |
Output is correct |
43 |
Correct |
6 ms |
4984 KB |
Output is correct |
44 |
Correct |
6 ms |
4984 KB |
Output is correct |
45 |
Correct |
6 ms |
4984 KB |
Output is correct |
46 |
Correct |
6 ms |
4984 KB |
Output is correct |
47 |
Correct |
6 ms |
4984 KB |
Output is correct |
48 |
Correct |
6 ms |
4984 KB |
Output is correct |
49 |
Correct |
6 ms |
4984 KB |
Output is correct |
50 |
Correct |
6 ms |
4984 KB |
Output is correct |
51 |
Correct |
6 ms |
4984 KB |
Output is correct |
52 |
Correct |
7 ms |
4984 KB |
Output is correct |
53 |
Correct |
7 ms |
4984 KB |
Output is correct |
54 |
Correct |
35 ms |
5496 KB |
Output is correct |
55 |
Correct |
35 ms |
5496 KB |
Output is correct |
56 |
Execution timed out |
1073 ms |
9456 KB |
Time limit exceeded |
57 |
Halted |
0 ms |
0 KB |
- |