제출 #759626

#제출 시각아이디문제언어결과실행 시간메모리
759626aykhn크레이피쉬 글쓰는 기계 (IOI12_scrivener)C++14
26 / 100
141 ms14268 KiB
#include <bits/stdc++.h> // author: aykhn using namespace std; #define mpr make_pair #define pb push_back #define fi first #define se second int x; string s; vector<pair<int, int>> calls; void Init() { s = ""; } void TypeLetter(char L) { calls.pb(mpr(1, L)); } void UndoCommands(int U) { calls.pb(mpr(2, U)); } char GetLetter(int P) { x++; if (x == 1) { int i = calls.size() - 1; while (i >= 0) { if (calls[i].fi == 2) { i -= calls[i].se; } else { s.pb(calls[i].se); } i--; } reverse(s.begin(), s.end()); } return s[P]; }
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