| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1357541 | maya_s | 크레이피쉬 글쓰는 기계 (IOI12_scrivener) | C++20 | 677 ms | 327680 KiB |
#include<bits/stdc++.h>
using namespace std;
typedef int ll;
typedef pair<ll, char> plc;
vector<plc> v;
bool GotLetters = 0;
string s = "";
void Init() {
}
void TypeLetter(char L) {
v.push_back({v.size()-1, L});
}
void UndoCommands(int U) {
ll idx = v.size() - U - 1;
v.push_back(v[idx]);
}
char GetLetter(int P) {
if(!GotLetters){
GotLetters = 1;
ll idx = v.size()-1;
while(1){
auto[prev, c] = v[idx];
s += c;
idx = P;
if(idx == -1) break;
}
}
return s[P];
}
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