제출 #297144

#제출 시각아이디문제언어결과실행 시간메모리
297144EJOI2019Andrew콤보 (IOI18_combo)C++14
100 / 100
33 ms596 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence(int N) { int x; string s; char ch[4]= {'A', 'B', 'X', 'Y'}; if (press("AB") >= 1) x = press("A") != 1; else x = 2 + (press("X") < 1); s += ch[x]; if (N == 1) return s; swap(ch[x], ch[3]); for (int i = 1; i < N - 1; i++) { x = press(s + ch[0] + ch[0] + s + ch[0] + ch[1] + s + ch[0] + ch[2] + s + ch[1]); if (x == i + 2) s+=ch[0]; else if (x == i + 1) s+=ch[1]; else s += ch[2]; } if (press(s + ch[0] + s + ch[1]) == N) { if (press(s + ch[0]) == N) s += ch[0]; else s += ch[1]; } else s += ch[2]; return s; }
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