제출 #706742

#제출 시각아이디문제언어결과실행 시간메모리
706742Yell0콤보 (IOI18_combo)C++17
100 / 100
34 ms532 KiB
#include <bits/stdc++.h> #include "combo.h" using namespace std; string guess_sequence(int N) { vector<char> ch={'A','B','X','Y'}; if(press("AB")) { if(press("B")) swap(ch[0],ch[1]); } else { if(press("X")) swap(ch[0],ch[2]); else swap(ch[0],ch[3]); } string ans=""; ans.push_back(ch[0]); for(int i=1;i<N-1;++i) { int r=press(ans+ch[1]+ans+ch[2]+ch[1]+ans+ch[2]+ch[2]+ans+ch[2]+ch[3]); if(r==i) ans.push_back(ch[3]); else if(r==i+1) ans.push_back(ch[1]); else ans.push_back(ch[2]); } if((int)ans.size()<N) { if(press(ans+ch[1])==N) ans.push_back(ch[1]); else { if(press(ans+ch[2])==N) ans.push_back(ch[2]); else ans.push_back(ch[3]); } } return ans; }
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