제출 #398136

#제출 시각아이디문제언어결과실행 시간메모리
398136chirathnirodha크레이피쉬 글쓰는 기계 (IOI12_scrivener)C++17
34 / 100
168 ms262148 KiB
//Coded by Chirath Nirodha
#include<bits/stdc++.h>
using namespace std;
vector<string> s;
vector<int> seq;
void Init(){
  string x;
  seq.push_back(0);
  s.push_back(x);
}
void TypeLetter(char L) {
  string x=s[seq[seq.size()-1]];
  x.push_back(L);
  seq.push_back(s.size());
  s.push_back(x);
}
void UndoCommands(int U) {
  seq.push_back(seq[seq.size()-1-U]);
}
char GetLetter(int P) {
  return s[seq[seq.size()-1]][P];
}
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