제출 #231300

#제출 시각아이디문제언어결과실행 시간메모리
231300blacktulip크레이피쉬 글쓰는 기계 (IOI12_scrivener)C++17
0 / 100
125 ms12192 KiB
#include <bits/stdc++.h> using namespace std; #define fi first #define se second #define mp make_pair #define pb push_back char c; //~ map<int,string> mpp; int cev,koy,say,flag; string s; vector< pair<int,int> > v; void Init(){ } void TypeLetter(char L){ v.pb(mp(say++,L-'a')); } void UndoCommands(int U){ v.pb(mp(U,-1)); } char GetLetter(int P){ if(flag==0){ reverse(v.begin(),v.end()); int ban=0; for(int i=0;i<(int)v.size();i++){ if(ban){ban--;i++;continue;} if(v[i].se==-1)ban=v[i].fi-1; else s+=v[i].se+'a'; } reverse(s.begin(),s.end()); flag=1; } //~ if((int)s.size()<=P){return -1;} return s[P]; }
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