Submission #625336

#	Time	Username	Problem	Language	Result	Execution time	Memory
625336		lorenzoferrari	Crayfish scrivener (IOI12_scrivener)	C++17	100 / 100	472 ms	227828 KiB

scrivener

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

const int MAXN = 1e6+5;

int head = 0;
rope<char> s[MAXN];

void Init() {}

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

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

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

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