Submission #976610

#	Time	Username	Problem	Language	Result	Execution time	Memory
976610		Isam	Crayfish scrivener (IOI12_scrivener)	C++17	100 / 100	405 ms	226132 KiB

scrivener

#include<bits/stdc++.h>
#include<ext/rope>
using namespace std;

__gnu_cxx::crope s[1000010];

int tot;

void Init(){};

void TypeLetter(char L){
	
	++tot;
	
	s[tot] = s[tot-1];
	
	s[tot].push_back(L);
	
}

void UndoCommands(int U){
	++tot;
	s[tot] = s[tot - U - 1];
}

char GetLetter(int P){
	return s[tot][P];
}

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