Submission #1192373

#	Time	Username	Problem	Language	Result	Execution time	Memory
1192373		Munimitso	Crayfish scrivener (IOI12_scrivener)	C++20	100 / 100	600 ms	222672 KiB

scrivener

#include <bits/stdc++.h>
#include <ext/rope>

using namespace std;
using namespace __gnu_cxx;

vector<crope> states(1);

void Init() {}

void TypeLetter(char L) {
    states.push_back(states.back()+L);
    // cout << states.back() << endl;
}

void UndoCommands(int U) {
    states.push_back(states[states.size()-U-1]);
    // cout << states.back() << endl;
}

char GetLetter(int P) {
    return states.back()[P];
}

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