#include "shoes.h"
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include <cassert>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric> //gcd(a,b)
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define endl "\n"
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-loops")
#define pii pair<int,int>
#define f first
#define s second
using namespace std;
const int mxn=3e5+1;
ll x,n;
struct fen{
ll fwk[mxn+10];
void update(ll pos,ll val){for(ll i=pos;i<=n;i+=(i&-i))fwk[i]+=val;}
ll qry(ll pos){
ll sum=0;
for(ll i=pos;i>0;i-=(i&-i))sum+=fwk[i];
return sum;
}
}t;
bool cmp(pii a,pii b){
if(a.f+a.s!=b.f+b.s)return a.f+a.s<b.f+b.s;
return min(a.f,a.s)<min(b.f,b.s);
}
ll cal(pii a){
if(a.f>a.s)a.s++;
return (a.f-1)+abs(2-a.s);
}
queue<ll>pos[mxn+10][2];
long long count_swaps(std::vector<int> sh) {
ll ans=0;
n=sh.size();
x=n/2;
vector<pii>shoes;
vector<bool>use(n+1,0);
for(ll j=0;j<n;j++){
pos[abs(sh[j])][sh[j]>0].push(j+1);
while(!pos[abs(sh[j])][0].empty()&&!pos[abs(sh[j])][1].empty()){
shoes.pb({pos[abs(sh[j])][0].front(),pos[abs(sh[j])][1].front()});
pos[abs(sh[j])][0].pop();
pos[abs(sh[j])][1].pop();
}
}
for(ll i=1;i<=n;i++)t.update(i,1);
sort(all(shoes),cmp);
for(auto i:shoes){
ll k=cal(make_pair(t.qry(i.f),t.qry(i.s)));
ans+=k;
t.update(i.f,-1);
t.update(i.s,-1);
}
return ans;
}/*
int32_t main(){
ll n;cin>>n;
vector<int>a(n);
for(int i=0;i<n;i++)cin>>a[i];
cout<<count_swaps(a);
}*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
404564 KB |
Output is correct |
2 |
Correct |
179 ms |
404564 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
404564 KB |
Output is correct |
2 |
Correct |
179 ms |
404564 KB |
Output is correct |
3 |
Correct |
206 ms |
404532 KB |
Output is correct |
4 |
Correct |
179 ms |
404564 KB |
Output is correct |
5 |
Correct |
182 ms |
404556 KB |
Output is correct |
6 |
Correct |
180 ms |
404556 KB |
Output is correct |
7 |
Correct |
179 ms |
404684 KB |
Output is correct |
8 |
Correct |
182 ms |
404564 KB |
Output is correct |
9 |
Correct |
180 ms |
404812 KB |
Output is correct |
10 |
Correct |
181 ms |
404524 KB |
Output is correct |
11 |
Correct |
180 ms |
404564 KB |
Output is correct |
12 |
Correct |
182 ms |
404720 KB |
Output is correct |
13 |
Correct |
181 ms |
404708 KB |
Output is correct |
14 |
Correct |
177 ms |
404572 KB |
Output is correct |
15 |
Correct |
190 ms |
405016 KB |
Output is correct |
16 |
Correct |
180 ms |
404728 KB |
Output is correct |
17 |
Correct |
180 ms |
404560 KB |
Output is correct |
18 |
Correct |
188 ms |
404816 KB |
Output is correct |
19 |
Correct |
176 ms |
404560 KB |
Output is correct |
20 |
Correct |
178 ms |
404608 KB |
Output is correct |
21 |
Correct |
187 ms |
404564 KB |
Output is correct |
22 |
Correct |
180 ms |
404564 KB |
Output is correct |
23 |
Correct |
191 ms |
404576 KB |
Output is correct |
24 |
Correct |
187 ms |
404560 KB |
Output is correct |
25 |
Correct |
180 ms |
404564 KB |
Output is correct |
26 |
Correct |
183 ms |
404560 KB |
Output is correct |
27 |
Correct |
181 ms |
404556 KB |
Output is correct |
28 |
Correct |
181 ms |
404700 KB |
Output is correct |
29 |
Correct |
179 ms |
404620 KB |
Output is correct |
30 |
Correct |
190 ms |
404520 KB |
Output is correct |
31 |
Correct |
180 ms |
404560 KB |
Output is correct |
32 |
Correct |
177 ms |
404516 KB |
Output is correct |
33 |
Correct |
183 ms |
404644 KB |
Output is correct |
34 |
Correct |
185 ms |
404564 KB |
Output is correct |
35 |
Correct |
179 ms |
404560 KB |
Output is correct |
36 |
Correct |
183 ms |
404560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
404564 KB |
Output is correct |
2 |
Correct |
179 ms |
404564 KB |
Output is correct |
3 |
Correct |
198 ms |
404564 KB |
Output is correct |
4 |
Correct |
178 ms |
404564 KB |
Output is correct |
5 |
Correct |
198 ms |
404884 KB |
Output is correct |
6 |
Correct |
179 ms |
404564 KB |
Output is correct |
7 |
Correct |
184 ms |
404548 KB |
Output is correct |
8 |
Correct |
179 ms |
404560 KB |
Output is correct |
9 |
Correct |
184 ms |
404568 KB |
Output is correct |
10 |
Correct |
179 ms |
404752 KB |
Output is correct |
11 |
Correct |
183 ms |
404640 KB |
Output is correct |
12 |
Correct |
178 ms |
404592 KB |
Output is correct |
13 |
Correct |
206 ms |
404720 KB |
Output is correct |
14 |
Correct |
181 ms |
404736 KB |
Output is correct |
15 |
Correct |
192 ms |
404560 KB |
Output is correct |
16 |
Correct |
178 ms |
404708 KB |
Output is correct |
17 |
Correct |
182 ms |
404636 KB |
Output is correct |
18 |
Correct |
180 ms |
404732 KB |
Output is correct |
19 |
Correct |
179 ms |
404620 KB |
Output is correct |
20 |
Correct |
181 ms |
405072 KB |
Output is correct |
21 |
Correct |
205 ms |
405076 KB |
Output is correct |
22 |
Correct |
213 ms |
408268 KB |
Output is correct |
23 |
Correct |
203 ms |
408272 KB |
Output is correct |
24 |
Correct |
206 ms |
408288 KB |
Output is correct |
25 |
Correct |
238 ms |
409040 KB |
Output is correct |
26 |
Correct |
233 ms |
409756 KB |
Output is correct |
27 |
Correct |
230 ms |
409292 KB |
Output is correct |
28 |
Correct |
232 ms |
410376 KB |
Output is correct |
29 |
Correct |
237 ms |
410492 KB |
Output is correct |
30 |
Correct |
228 ms |
410384 KB |
Output is correct |
31 |
Correct |
222 ms |
409548 KB |
Output is correct |
32 |
Correct |
239 ms |
410312 KB |
Output is correct |
33 |
Correct |
233 ms |
410252 KB |
Output is correct |
34 |
Correct |
248 ms |
410640 KB |
Output is correct |
35 |
Correct |
202 ms |
404652 KB |
Output is correct |
36 |
Correct |
186 ms |
404680 KB |
Output is correct |
37 |
Correct |
252 ms |
410320 KB |
Output is correct |
38 |
Correct |
237 ms |
410384 KB |
Output is correct |
39 |
Correct |
237 ms |
410384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
193 ms |
404736 KB |
Output is correct |
2 |
Correct |
193 ms |
404604 KB |
Output is correct |
3 |
Correct |
190 ms |
404588 KB |
Output is correct |
4 |
Correct |
187 ms |
404732 KB |
Output is correct |
5 |
Correct |
249 ms |
408268 KB |
Output is correct |
6 |
Correct |
234 ms |
409716 KB |
Output is correct |
7 |
Correct |
252 ms |
409608 KB |
Output is correct |
8 |
Correct |
245 ms |
410516 KB |
Output is correct |
9 |
Correct |
228 ms |
409452 KB |
Output is correct |
10 |
Correct |
222 ms |
409564 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
404564 KB |
Output is correct |
2 |
Correct |
179 ms |
404564 KB |
Output is correct |
3 |
Correct |
206 ms |
404532 KB |
Output is correct |
4 |
Correct |
179 ms |
404564 KB |
Output is correct |
5 |
Correct |
182 ms |
404556 KB |
Output is correct |
6 |
Correct |
180 ms |
404556 KB |
Output is correct |
7 |
Correct |
179 ms |
404684 KB |
Output is correct |
8 |
Correct |
182 ms |
404564 KB |
Output is correct |
9 |
Correct |
180 ms |
404812 KB |
Output is correct |
10 |
Correct |
181 ms |
404524 KB |
Output is correct |
11 |
Correct |
180 ms |
404564 KB |
Output is correct |
12 |
Correct |
182 ms |
404720 KB |
Output is correct |
13 |
Correct |
181 ms |
404708 KB |
Output is correct |
14 |
Correct |
177 ms |
404572 KB |
Output is correct |
15 |
Correct |
190 ms |
405016 KB |
Output is correct |
16 |
Correct |
180 ms |
404728 KB |
Output is correct |
17 |
Correct |
180 ms |
404560 KB |
Output is correct |
18 |
Correct |
188 ms |
404816 KB |
Output is correct |
19 |
Correct |
176 ms |
404560 KB |
Output is correct |
20 |
Correct |
178 ms |
404608 KB |
Output is correct |
21 |
Correct |
187 ms |
404564 KB |
Output is correct |
22 |
Correct |
180 ms |
404564 KB |
Output is correct |
23 |
Correct |
191 ms |
404576 KB |
Output is correct |
24 |
Correct |
187 ms |
404560 KB |
Output is correct |
25 |
Correct |
180 ms |
404564 KB |
Output is correct |
26 |
Correct |
183 ms |
404560 KB |
Output is correct |
27 |
Correct |
181 ms |
404556 KB |
Output is correct |
28 |
Correct |
181 ms |
404700 KB |
Output is correct |
29 |
Correct |
179 ms |
404620 KB |
Output is correct |
30 |
Correct |
190 ms |
404520 KB |
Output is correct |
31 |
Correct |
180 ms |
404560 KB |
Output is correct |
32 |
Correct |
177 ms |
404516 KB |
Output is correct |
33 |
Correct |
183 ms |
404644 KB |
Output is correct |
34 |
Correct |
185 ms |
404564 KB |
Output is correct |
35 |
Correct |
179 ms |
404560 KB |
Output is correct |
36 |
Correct |
183 ms |
404560 KB |
Output is correct |
37 |
Correct |
182 ms |
404568 KB |
Output is correct |
38 |
Correct |
178 ms |
404560 KB |
Output is correct |
39 |
Correct |
180 ms |
404564 KB |
Output is correct |
40 |
Correct |
184 ms |
404564 KB |
Output is correct |
41 |
Correct |
189 ms |
404560 KB |
Output is correct |
42 |
Correct |
179 ms |
404564 KB |
Output is correct |
43 |
Correct |
179 ms |
404568 KB |
Output is correct |
44 |
Correct |
196 ms |
404656 KB |
Output is correct |
45 |
Correct |
186 ms |
404700 KB |
Output is correct |
46 |
Correct |
181 ms |
404760 KB |
Output is correct |
47 |
Correct |
265 ms |
404684 KB |
Output is correct |
48 |
Correct |
184 ms |
404684 KB |
Output is correct |
49 |
Correct |
198 ms |
404564 KB |
Output is correct |
50 |
Correct |
194 ms |
404740 KB |
Output is correct |
51 |
Correct |
186 ms |
404640 KB |
Output is correct |
52 |
Correct |
199 ms |
404716 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
182 ms |
404564 KB |
Output is correct |
2 |
Correct |
179 ms |
404564 KB |
Output is correct |
3 |
Correct |
206 ms |
404532 KB |
Output is correct |
4 |
Correct |
179 ms |
404564 KB |
Output is correct |
5 |
Correct |
182 ms |
404556 KB |
Output is correct |
6 |
Correct |
180 ms |
404556 KB |
Output is correct |
7 |
Correct |
179 ms |
404684 KB |
Output is correct |
8 |
Correct |
182 ms |
404564 KB |
Output is correct |
9 |
Correct |
180 ms |
404812 KB |
Output is correct |
10 |
Correct |
181 ms |
404524 KB |
Output is correct |
11 |
Correct |
180 ms |
404564 KB |
Output is correct |
12 |
Correct |
182 ms |
404720 KB |
Output is correct |
13 |
Correct |
181 ms |
404708 KB |
Output is correct |
14 |
Correct |
177 ms |
404572 KB |
Output is correct |
15 |
Correct |
190 ms |
405016 KB |
Output is correct |
16 |
Correct |
180 ms |
404728 KB |
Output is correct |
17 |
Correct |
180 ms |
404560 KB |
Output is correct |
18 |
Correct |
188 ms |
404816 KB |
Output is correct |
19 |
Correct |
176 ms |
404560 KB |
Output is correct |
20 |
Correct |
178 ms |
404608 KB |
Output is correct |
21 |
Correct |
187 ms |
404564 KB |
Output is correct |
22 |
Correct |
180 ms |
404564 KB |
Output is correct |
23 |
Correct |
191 ms |
404576 KB |
Output is correct |
24 |
Correct |
187 ms |
404560 KB |
Output is correct |
25 |
Correct |
180 ms |
404564 KB |
Output is correct |
26 |
Correct |
183 ms |
404560 KB |
Output is correct |
27 |
Correct |
181 ms |
404556 KB |
Output is correct |
28 |
Correct |
181 ms |
404700 KB |
Output is correct |
29 |
Correct |
179 ms |
404620 KB |
Output is correct |
30 |
Correct |
190 ms |
404520 KB |
Output is correct |
31 |
Correct |
180 ms |
404560 KB |
Output is correct |
32 |
Correct |
177 ms |
404516 KB |
Output is correct |
33 |
Correct |
183 ms |
404644 KB |
Output is correct |
34 |
Correct |
185 ms |
404564 KB |
Output is correct |
35 |
Correct |
179 ms |
404560 KB |
Output is correct |
36 |
Correct |
183 ms |
404560 KB |
Output is correct |
37 |
Correct |
198 ms |
404564 KB |
Output is correct |
38 |
Correct |
178 ms |
404564 KB |
Output is correct |
39 |
Correct |
198 ms |
404884 KB |
Output is correct |
40 |
Correct |
179 ms |
404564 KB |
Output is correct |
41 |
Correct |
184 ms |
404548 KB |
Output is correct |
42 |
Correct |
179 ms |
404560 KB |
Output is correct |
43 |
Correct |
184 ms |
404568 KB |
Output is correct |
44 |
Correct |
179 ms |
404752 KB |
Output is correct |
45 |
Correct |
183 ms |
404640 KB |
Output is correct |
46 |
Correct |
178 ms |
404592 KB |
Output is correct |
47 |
Correct |
206 ms |
404720 KB |
Output is correct |
48 |
Correct |
181 ms |
404736 KB |
Output is correct |
49 |
Correct |
192 ms |
404560 KB |
Output is correct |
50 |
Correct |
178 ms |
404708 KB |
Output is correct |
51 |
Correct |
182 ms |
404636 KB |
Output is correct |
52 |
Correct |
180 ms |
404732 KB |
Output is correct |
53 |
Correct |
179 ms |
404620 KB |
Output is correct |
54 |
Correct |
181 ms |
405072 KB |
Output is correct |
55 |
Correct |
205 ms |
405076 KB |
Output is correct |
56 |
Correct |
213 ms |
408268 KB |
Output is correct |
57 |
Correct |
203 ms |
408272 KB |
Output is correct |
58 |
Correct |
206 ms |
408288 KB |
Output is correct |
59 |
Correct |
238 ms |
409040 KB |
Output is correct |
60 |
Correct |
233 ms |
409756 KB |
Output is correct |
61 |
Correct |
230 ms |
409292 KB |
Output is correct |
62 |
Correct |
232 ms |
410376 KB |
Output is correct |
63 |
Correct |
237 ms |
410492 KB |
Output is correct |
64 |
Correct |
228 ms |
410384 KB |
Output is correct |
65 |
Correct |
222 ms |
409548 KB |
Output is correct |
66 |
Correct |
239 ms |
410312 KB |
Output is correct |
67 |
Correct |
233 ms |
410252 KB |
Output is correct |
68 |
Correct |
248 ms |
410640 KB |
Output is correct |
69 |
Correct |
202 ms |
404652 KB |
Output is correct |
70 |
Correct |
186 ms |
404680 KB |
Output is correct |
71 |
Correct |
252 ms |
410320 KB |
Output is correct |
72 |
Correct |
237 ms |
410384 KB |
Output is correct |
73 |
Correct |
237 ms |
410384 KB |
Output is correct |
74 |
Correct |
193 ms |
404736 KB |
Output is correct |
75 |
Correct |
193 ms |
404604 KB |
Output is correct |
76 |
Correct |
190 ms |
404588 KB |
Output is correct |
77 |
Correct |
187 ms |
404732 KB |
Output is correct |
78 |
Correct |
249 ms |
408268 KB |
Output is correct |
79 |
Correct |
234 ms |
409716 KB |
Output is correct |
80 |
Correct |
252 ms |
409608 KB |
Output is correct |
81 |
Correct |
245 ms |
410516 KB |
Output is correct |
82 |
Correct |
228 ms |
409452 KB |
Output is correct |
83 |
Correct |
222 ms |
409564 KB |
Output is correct |
84 |
Correct |
182 ms |
404568 KB |
Output is correct |
85 |
Correct |
178 ms |
404560 KB |
Output is correct |
86 |
Correct |
180 ms |
404564 KB |
Output is correct |
87 |
Correct |
184 ms |
404564 KB |
Output is correct |
88 |
Correct |
189 ms |
404560 KB |
Output is correct |
89 |
Correct |
179 ms |
404564 KB |
Output is correct |
90 |
Correct |
179 ms |
404568 KB |
Output is correct |
91 |
Correct |
196 ms |
404656 KB |
Output is correct |
92 |
Correct |
186 ms |
404700 KB |
Output is correct |
93 |
Correct |
181 ms |
404760 KB |
Output is correct |
94 |
Correct |
265 ms |
404684 KB |
Output is correct |
95 |
Correct |
184 ms |
404684 KB |
Output is correct |
96 |
Correct |
198 ms |
404564 KB |
Output is correct |
97 |
Correct |
194 ms |
404740 KB |
Output is correct |
98 |
Correct |
186 ms |
404640 KB |
Output is correct |
99 |
Correct |
199 ms |
404716 KB |
Output is correct |
100 |
Correct |
209 ms |
404596 KB |
Output is correct |
101 |
Correct |
190 ms |
405012 KB |
Output is correct |
102 |
Correct |
198 ms |
405052 KB |
Output is correct |
103 |
Correct |
236 ms |
409552 KB |
Output is correct |
104 |
Correct |
230 ms |
409640 KB |
Output is correct |
105 |
Correct |
241 ms |
409568 KB |
Output is correct |
106 |
Correct |
267 ms |
409476 KB |
Output is correct |
107 |
Correct |
224 ms |
409452 KB |
Output is correct |
108 |
Correct |
246 ms |
409620 KB |
Output is correct |
109 |
Correct |
262 ms |
410380 KB |
Output is correct |
110 |
Correct |
241 ms |
410452 KB |
Output is correct |
111 |
Correct |
237 ms |
409552 KB |
Output is correct |
112 |
Correct |
231 ms |
409548 KB |
Output is correct |
113 |
Correct |
224 ms |
409464 KB |
Output is correct |
114 |
Correct |
223 ms |
409480 KB |
Output is correct |
115 |
Correct |
226 ms |
409552 KB |
Output is correct |