Submission #170335

#	Time	Username	Problem	Language	Result	Execution time	Memory
170335		ngmh	Crayfish scrivener (IOI12_scrivener)	C++11	34 / 100	274 ms	262148 KiB

scrivener

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

string s;
vector<string> states;
void Init() {}

void TypeLetter(char L) {
  if(s.size() > 0) s = states[states.size()-1]+L;
  else s = L;
  states.push_back(s);
}

void UndoCommands(int U) {
  states.push_back(states[states.size()-1-U]);
}

char GetLetter(int P) {
  return states[states.size()-1][P];
}

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 22 / 22
• Subtask 4: 0 / 26
• Subtask 5: 0 / 40