Submission #976518

#	Time	Username	Problem	Language	Result	Execution time	Memory
976518		marinaluca	Crayfish scrivener (IOI12_scrivener)	C++17	100 / 100	387 ms	227960 KiB

scrivener

#include <bits/stdc++.h>
#include <ext/rope>
__gnu_cxx::crope c[1000100];
int k;
void Init(){}
void TypeLetter(char L){
    k ++;
    c[k] = c[k - 1];
    c[k].push_back(L);
}
void UndoCommands(int U){
    k ++;
    c[k] = c[k - U - 1];
}
char GetLetter(int P){
   return c[k][P];
}

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