제출 #151270

#제출 시각아이디문제언어결과실행 시간메모리
151270dennisstar콤보 (IOI18_combo)C++11
100 / 100
208 ms2096 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; char ar[]="ABXY"; string guess_sequence(int N) { string p = ""; int i; p="AB"; if (press(p)) { p="A"; if (press(p)) p="A"; else p="B"; } else { p="X"; if (press(p)) p="X"; else p="Y"; } for (i=0; i<4; i++) if (p[0]==ar[i]) { for (i=i+1; i<4; i++) ar[i-1]=ar[i]; break; } if (N==1) return p; string q; for (i=1; i<N-1; i++) { q=""; q+=p; q+=ar[0]; q+=ar[0]; q+=p; q+=ar[0]; q+=ar[1]; q+=p; q+=ar[0]; q+=ar[2]; q+=p; q+=ar[1]; int ret=press(q); if (ret==i+2) p+=ar[0]; else if (ret==i+1) p+=ar[1]; else p+=ar[2]; } p+=ar[0]; if (press(p)==N) return p; p[N-1]=ar[1]; if (press(p)==N) return p; p[N-1]=ar[2]; return p; }
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