Submission #1195788

#TimeUsernameProblemLanguageResultExecution timeMemory
1195788qs1Combo (IOI18_combo)C++20
100 / 100
8 ms484 KiB
#include "combo.h" #include<bits/stdc++.h> using namespace std; #define lli long long int std::string guess_sequence(int N) { vector<string>c; lli n=press("AB"); if(n==0){ n=press("X"); if(n==0){ c={"Y","A","B","X"}; } else{ c={"X","A","B","Y"}; } } else{ n=press("A"); if(n==0){ c={"B","A","Y","X"}; } else{ c={"A","X","B","Y"}; } } string s=c[0]; if(N==1)return s; for(lli i=1;i<N-1;i++){ string t=s+c[1]+s+c[2]+c[1]+s+c[2]+c[2]+s+c[2]+c[3]; n=press(t); if(n==i){ s+=c[3]; } else if(n==i+1){ s+=c[1]; } else{ s+=c[2]; } } if(press(s+c[1])==N){ s+=c[1]; } else if(press(s+c[2])==N){ s+=c[2]; } else{ s+=c[3]; } return s; }
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