제출 #349493

#제출 시각아이디문제언어결과실행 시간메모리
349493David_M콤보 (IOI18_combo)C++14
100 / 100
47 ms580 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string ans; char a[]={'B','X','Y'}; string guess_sequence(int N){ press("XY")?ans+='Y'-press("X"):ans+='B'-press("A"); if(N==1)return ans; if(ans!="A")a[max(0,int(ans[0]-'W'))]='A'; for(int i=1;i<N-1;i++)ans+=a[press(ans+a[1]+ans+a[2]+a[0]+ans+a[2]+a[1]+ans+a[2]+a[2])-i]; if(press(ans+a[0])==N)return ans+a[0]; if(press(ans+a[1])==N)return ans+a[1]; return ans+a[2]; }
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