제출 #70777

#제출 시각아이디문제언어결과실행 시간메모리
70777edisonhello크레이피쉬 글쓰는 기계 (IOI12_scrivener)C++14
100 / 100
929 ms223932 KiB
#include<bits/stdc++.h>
using namespace std;
#include<ext/rope>
using namespace __gnu_cxx;

rope<char> rp[1000006];
int now=0;

void Init(){}
void TypeLetter(char c){
    tie(now,rp[now+1])=make_pair(now+1,rp[now]);
    rp[now].push_back(c);
}
void UndoCommands(int u){
    tie(now,rp[now+1])=make_pair(now+1,rp[now-u]);
}
char GetLetter(int p){
    return rp[now][p];
}
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