제출 #1317920

#제출 시각아이디문제언어결과실행 시간메모리
1317920mintCombo (IOI18_combo)C++20
100 / 100
7 ms464 KiB
#include "combo.h" std::string rem = "ABXY"; std::string guess_sequence(int N) { std::string S = ""; int foo1 = press("AB"); int foo2 = press("AX"); if(foo1 && foo2){ S.append("A"); rem.erase(0, 1);} else if(foo1){ S.append("B"); rem.erase(1, 1);} else if(foo2){ S.append("X"); rem.erase(2, 1);} else{ S.append("Y"); rem.erase(3, 1);} if(N == 1) return S; for(int i = 1; i < N-1; i++){ int foo = press(S + rem[0] + S + rem[1] + rem[0] + S + rem[1] + rem[1] + S + rem[1] + rem[2]); if(foo == i) S += rem[2]; else if(foo == i+1) S += rem[0]; else S += rem[1]; } if(press(S+rem[0]) == N) S += rem[0]; else if(press(S+rem[1]) == N) S += rem[1]; else S += rem[2]; return S; }
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