Submission #1216023

#TimeUsernameProblemLanguageResultExecution timeMemory
1216023simplemind_31Combo (IOI18_combo)C++20
0 / 100
6 ms484 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence(int N) { string S; if(press("AB")){ if(press("A")){ S="A"; if(N==1){ return S; } while(S.size()<N-1){ int x=press(S+"B"+S+"XB"+S+"XX"+S+"XY"); if(x==S.size()+2){ S.push_back('X'); }else if(x==S.size()+1){ S.push_back('B'); }else{ S.push_back('Y'); } } if(press(S+"B")==S.size()+1){ S.push_back('B'); }else if(press(S+"X")==S.size()+1){ S.push_back('X'); }else{ S.push_back('Y'); } }else{ S="B"; if(N==1){ return S; } while(S.size()<N-1){ int x=press(S+"A"+S+"XA"+S+"XX"+S+"XY"); if(x==S.size()+2){ S.push_back('X'); }else if(x==S.size()){ S.push_back('A'); }else{ S.push_back('Y'); } } if(press(S+"A")==S.size()+1){ S.push_back('A'); }else if(press(S+"X")==S.size()+1){ S.push_back('X'); }else{ S.push_back('Y'); } } }else{ if(press("X")){ S="X"; if(N==1){ return S; } while(S.size()<N-1){ int x=press(S+"A"+S+"BA"+S+"BB"+S+"BY"); if(x==S.size()+2){ S.push_back('B'); }else if(x==S.size()){ S.push_back('A'); }else{ S.push_back('Y'); } } if(press(S+"A")==S.size()+1){ S.push_back('A'); }else if(press(S+"B")==S.size()+1){ S.push_back('B'); }else{ S.push_back('Y'); } }else{ S="Y"; if(N==1){ return S; } while(S.size()<N-1){ int x=press(S+"A"+S+"BA"+S+"BB"+S+"BX"); if(x==S.size()+2){ S.push_back('B'); }else if(x==S.size()){ S.push_back('A'); }else{ S.push_back('X'); } } if(press(S+"A")==S.size()+1){ S.push_back('A'); }else if(press(S+"B")==S.size()+1){ S.push_back('B'); }else{ S.push_back('X'); } } } return S; }
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