제출 #1256711

#제출 시각아이디문제언어결과실행 시간메모리
1256711goulthenCombo (IOI18_combo)C++20
100 / 100
7 ms484 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; std::string guess_sequence(int N) { vector<char> op = {'A', 'B', 'X', 'Y'}; // FIND first char with BS string s = ""; if(press("AB")) { if (press("A")) s+="A", op.erase(op.begin()); else s += "B", op.erase(op.begin()+1); } else { if (press("X")) s+="X", op.erase(op.begin()+2); else s+="Y", op.erase(op.begin()+3); } for (int i = 1; i < N-1; i++) { int k = press(s+op[0]+s+op[1]+op[0]+s+op[1]+op[1]+s+op[1]+op[2]); if(k==i) s+= op[2]; else if (k==i+1) s+=op[0]; else s+=op[1]; } if (N==1) return s; if(press(s+op[0])==N) s+=op[0]; else if (press(s+op[1])==N) s+= op[1]; else s+=op[2]; return s; }
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