#include<bits/stdc++.h>
#define MAXN 1000007
using namespace std;
int n,perm[MAXN],br,cnt,last,maxpos,to[MAXN],curr,pos,first;
bool li[MAXN],ok,used[MAXN];
long long sum,add[MAXN],ans;
bool tree[4*MAXN];
void update(int v,int l,int r,int ll,int rr){
if(ll>rr)return;
if(l==ll and r==rr){
tree[v]=true;
}else{
int tt=(l+r)/2;
update(2*v,l,tt,ll,min(tt,rr));
update(2*v+1,tt+1,r,max(tt+1,ll),rr);
}
}
bool getpos(int v,int l,int r,int pos){
if(l==r)return tree[v];
int tt=(l+r)/2;
if(pos<=tt)return getpos(2*v,l,tt,pos) or tree[v];
else return getpos(2*v+1,tt+1,r,pos) or tree[v];
}
void dfs(int x){
li[x]=true;
sum+=abs(x-perm[x]); br++;
update(1,0,n-1,min(x,perm[x]),max(x,perm[x])-1);
if(!li[perm[x]])dfs(perm[x]);
}
void dfs2(int x){
li[x]=true;
sum+=abs(x-perm[x]); br++;
update(1,0,n-1,min(x,perm[x])+1,max(x,perm[x]));
if(!li[perm[x]])dfs2(perm[x]);
}
long long minimum_walk(vector<int> p, int s){
n=int(p.size());
for(int i=0;i<n;i++)perm[i]=p[i];
for(int i=0;i<n;i++){
if(!li[i]){
sum=br=0;
dfs(i); add[i]=sum;
if(br>1)last=i;
}
}
for(int i=s;i<=last;i++){
ans+=add[i];
if(!getpos(1,0,n-1,i) and i<last)ans+=2;
}
for(int i=0;i<4*n;i++)tree[i]=false;
for(int i=0;i<n;i++)li[i]=false;
for(int i=n-1;i>=0;i--){
if(!li[i]){
sum=br=0;
dfs2(i); add[i]=sum;
if(br>1)first=i;
}
}
for(int i=s;i>=first;i--){
ans+=add[i];
if(!getpos(1,0,n-1,i) and i>first)ans+=2;
}
return ans;
}
/*
int main(){
cout<<minimum_walk({0,2,3,1}, 1)<<"\n";
}
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
850 ms |
16972 KB |
Output is correct |
| 31 |
Correct |
920 ms |
17016 KB |
Output is correct |
| 32 |
Correct |
101 ms |
24708 KB |
Output is correct |
| 33 |
Correct |
337 ms |
24840 KB |
Output is correct |
| 34 |
Correct |
325 ms |
24844 KB |
Output is correct |
| 35 |
Correct |
366 ms |
24772 KB |
Output is correct |
| 36 |
Correct |
444 ms |
24808 KB |
Output is correct |
| 37 |
Correct |
533 ms |
24736 KB |
Output is correct |
| 38 |
Correct |
611 ms |
23068 KB |
Output is correct |
| 39 |
Correct |
624 ms |
22532 KB |
Output is correct |
| 40 |
Correct |
692 ms |
18936 KB |
Output is correct |
| 41 |
Correct |
815 ms |
17120 KB |
Output is correct |
| 42 |
Correct |
847 ms |
17472 KB |
Output is correct |
| 43 |
Correct |
333 ms |
24780 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
340 KB |
3rd lines differ - on the 1st token, expected: '3304', found: '1050' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
850 ms |
16972 KB |
Output is correct |
| 31 |
Correct |
920 ms |
17016 KB |
Output is correct |
| 32 |
Correct |
101 ms |
24708 KB |
Output is correct |
| 33 |
Correct |
337 ms |
24840 KB |
Output is correct |
| 34 |
Correct |
325 ms |
24844 KB |
Output is correct |
| 35 |
Correct |
366 ms |
24772 KB |
Output is correct |
| 36 |
Correct |
444 ms |
24808 KB |
Output is correct |
| 37 |
Correct |
533 ms |
24736 KB |
Output is correct |
| 38 |
Correct |
611 ms |
23068 KB |
Output is correct |
| 39 |
Correct |
624 ms |
22532 KB |
Output is correct |
| 40 |
Correct |
692 ms |
18936 KB |
Output is correct |
| 41 |
Correct |
815 ms |
17120 KB |
Output is correct |
| 42 |
Correct |
847 ms |
17472 KB |
Output is correct |
| 43 |
Correct |
333 ms |
24780 KB |
Output is correct |
| 44 |
Incorrect |
1 ms |
340 KB |
3rd lines differ - on the 1st token, expected: '3304', found: '1050' |
| 45 |
Halted |
0 ms |
0 KB |
- |
