#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
char last;
char hai[1010101];
pair<ll,ll> A[1010101];
ll te;
int p[20][1000001];
int LO[1000001];
void cek()
{
ll ii;
for(ii=0;ii<te;ii++)
cout<<ii<<" "<<char(A[ii].fi)<<" "<<A[ii].se<<"\n";
cout<<"\n";
}
void Init()
{
ll ii;
for(ii=1;ii<=1000000;ii++)
LO[ii]=ceil(log(ii)/log(2));
// for(ii=0;ii<10;ii++)
// cout<<ii<<" "<<LO[ii]<<"\n";
}
void TypeLetter(char L)
{
ll bes=0,ii;
if(te>0)
bes=A[te-1].se+1;
A[te]=mp(L,bes);
if(te==0)
p[0][te]=0;
else
p[0][te]=te-1;
for(ii=1;ii<LO[te];ii++)
p[ii][te]=p[ii-1][p[ii-1][te]];
te++;
// cek();
}
void UndoCommands(int U)
{
ll ii;
A[te]=A[te-U-1];
p[0][te]=p[0][te-U-1];
for(ii=1;ii<LO[te+1];ii++)
p[ii][te]=p[ii-1][p[ii-1][te]];
te++;
// cek();
}
char GetLetter(int P)
{
ll ii,X=te-1;
for(ii=LO[te+1];ii>=0;ii--)
if(A[p[ii][X]].se>=P)
X=p[ii][X];
return char(A[X].fi);
// return hai[P];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
30 ms |
4224 KB |
Output is correct |
2 |
Correct |
31 ms |
4256 KB |
Output is correct |
3 |
Correct |
31 ms |
4352 KB |
Output is correct |
4 |
Correct |
31 ms |
4344 KB |
Output is correct |
5 |
Correct |
31 ms |
4328 KB |
Output is correct |
6 |
Correct |
32 ms |
4472 KB |
Output is correct |
7 |
Correct |
35 ms |
4344 KB |
Output is correct |
8 |
Correct |
33 ms |
4340 KB |
Output is correct |
9 |
Correct |
31 ms |
4344 KB |
Output is correct |
10 |
Correct |
31 ms |
4344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
4344 KB |
Output is correct |
2 |
Correct |
32 ms |
4320 KB |
Output is correct |
3 |
Correct |
31 ms |
4344 KB |
Output is correct |
4 |
Correct |
31 ms |
4224 KB |
Output is correct |
5 |
Correct |
31 ms |
4352 KB |
Output is correct |
6 |
Correct |
29 ms |
4344 KB |
Output is correct |
7 |
Correct |
31 ms |
4344 KB |
Output is correct |
8 |
Correct |
31 ms |
4352 KB |
Output is correct |
9 |
Correct |
30 ms |
4344 KB |
Output is correct |
10 |
Correct |
31 ms |
4344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
33 ms |
4472 KB |
Output is correct |
2 |
Correct |
32 ms |
4472 KB |
Output is correct |
3 |
Correct |
76 ms |
4600 KB |
Output is correct |
4 |
Correct |
31 ms |
4572 KB |
Output is correct |
5 |
Correct |
32 ms |
4608 KB |
Output is correct |
6 |
Correct |
31 ms |
4600 KB |
Output is correct |
7 |
Correct |
31 ms |
4600 KB |
Output is correct |
8 |
Correct |
33 ms |
4608 KB |
Output is correct |
9 |
Correct |
32 ms |
4600 KB |
Output is correct |
10 |
Correct |
32 ms |
4600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
518 ms |
67628 KB |
Output is correct |
2 |
Correct |
509 ms |
82424 KB |
Output is correct |
3 |
Correct |
411 ms |
81796 KB |
Output is correct |
4 |
Incorrect |
463 ms |
85880 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
939 ms |
62120 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |