Submission #318062

#	Time	Username	Problem	Language	Result	Execution time	Memory
318062		Sho10	Crayfish scrivener (IOI12_scrivener)	C++14	100 / 100	712 ms	81124 KiB

scrivener

#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long
#define double long double
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define PI 3.14159265359
#define MAXN 100005
#define INF 1000000005
#define LINF 1000000000000000005ll
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
int x[1000005][25],d[1000005],pos[1000005],node=0,t=0,c=0;
char a[1000005];
void Init(){}
void TypeLetter(char L){
t++;
node++;
a[node]=L;
x[node][0]=c;
d[node]=d[c]+1;
c=node;
pos[t]=c;
for(int i=1;i<20;i++)
{
    x[c][i]=x[x[c][i-1]][i-1];
}
return;
}
void UndoCommands(int U){
c=pos[t-U];
t++;
pos[t]=c;
}
char GetLetter(int P){
P++;
int val=c;
for(int i=19;i>=0;i--)
{
    if(d[x[val][i]]>=P){
        val=x[val][i];
    }
}
return a[val];
}
/*
int32_t main(){
CODE_START;
*/

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 22 / 22
• Subtask 4: 26 / 26
• Subtask 5: 40 / 40