제출 #140268

#제출 시각아이디문제언어결과실행 시간메모리
140268Runtime_error_콤보 (IOI18_combo)C++14
100 / 100
43 ms592 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence(int N) { vector<char>v; string ans = ""; if( press("AB") ) ans += ( press("A") ? 'A' : 'B' ); else ans += ( press("X") ? 'X' : 'Y'); if(ans[0] != 'A') v.push_back('A'); if(ans[0] != 'B') v.push_back('B'); if(ans[0] != 'X') v.push_back('X'); if(ans[0] != 'Y') v.push_back('Y'); if(N == 1) return ans; for(int i=2;i<N;i++){ string tmp = ans+v[0] + ans+v[1]+v[0] + ans+v[1]+v[1] + ans+v[1]+v[2]; int res = press(tmp); if( res == i-1 ) ans += v[2]; else if( res == i+1 ) ans += v[1]; else ans += v[0]; } if( press( ans+v[0] ) == N ) ans += v[0]; else if( press( ans+v[1] ) == N) ans += v[1]; else ans += v[2]; return ans; }
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