Submission #167141

#TimeUsernameProblemLanguageResultExecution timeMemory
167141minseo852Combo (IOI18_combo)C++11
0 / 100
3 ms272 KiB
#include<combo.h> #include<string> #define t press std::string guess_sequence(int N) {std::string r,p,o="ABXY";int i,j,c;r=t("AB")?t("A")?"A":"B":t("X")?"X":"Y";if(N==1)return r;for(i=0;i<4;i++)if(o[i]==r[0]){o.erase(i,i+1);break;}for(int i=1;i<N-1;i++){p=r+o[0];for(j=0;j<3;){p+=r+o[1]+o[j++];}c=t(p);r+=o[c==i?2:c==i+1?0:1];}r+=o[t(r+o[0]+r+o[1])==N?t(r+o[0])==N?0:1:2];return r;}
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