# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
213412 | Nucleist | Crayfish scrivener (IOI12_scrivener) | C++14 | 761 ms | 166776 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000
#define MOD 1000000007
#define pb push_back
#define ve vector<ll>
#define dos pair<ll,ll>
#define vedos vector<dos>
#define rand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
struct greateri
{
template<class T>
bool operator()(T const &a, T const &b) const { return a > b; }
};
int cur;
struct node
{
char let;
int s;
node *par[25];
node(){ }
node( char let ) : let( let ){
for (int i = 0; i <= 19; ++i)
{
par[i]=nullptr;
}
}
};
node* sol[1000101];
void Init() {
cur = 0;
sol[0] = nullptr;
}
void TypeLetter(char k)
{
++cur;
sol[cur] = new node(k);
if(sol[cur-1])sol[cur]->s=((sol[cur-1]->s)+1);
else sol[cur]->s=1;
sol[cur]->par[0]=sol[cur-1];
for (int i = 1; i <= 19; ++i)
{
if( sol[cur]->par[i-1] )
sol[cur]->par[i]=sol[cur]->par[i-1]->par[i-1];
}
}
void UndoCommands(int u)
{
sol[++cur]=sol[cur-u];
}
char GetLetter(int pos)
{
int posi= sol[cur]->s - pos-1;
node *nowi = sol[cur];
for (int i = 19; i >= 0; --i)
{
if(posi >> i & 1)nowi=nowi->par[i];
}
return nowi->let;
}
//code the AC sol !
// BS/queue/map
Compilation message (stderr)
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