Submission #1255195

#TimeUsernameProblemLanguageResultExecution timeMemory
1255195charhaoCombo (IOI18_combo)C++20
100 / 100
7 ms528 KiB
#include "combo.h" #include<bits/stdc++.h> using namespace std; string guess_sequence(int n) { string ans=""; vector<char> t; if(press("AB")){//first character is A or B int T=press("A"); if(T==1) ans="A",t={'B','X','Y'}; else ans="B",t={'A','X','Y'}; } else{ int T=press("X"); if(T==1) ans="X",t={'A','B','Y'}; else ans="Y",t={'A','B','X'}; } for(int i=2;i<=n-1;i++){ string T=ans+t[1]; T=T+ans+t[0]+t[0]; T=T+ans+t[0]+t[1]; T=T+ans+t[0]+t[2]; int res=press(T)-ans.size(); if(res==0) ans+=t[2]; else if(res==1) ans+=t[1]; else ans+=t[0]; } if(ans.size()==n) return ans; string aans=""; for(int j=0;j<=1;j++){ string T=ans+t[j]; if(press(T)-ans.size()==1){ aans=T; break; } } if(!aans.size()) aans=ans+t[2]; // cout<<aans<<'\n'; return aans; }
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