제출 #696464

#제출 시각아이디문제언어결과실행 시간메모리
696464Elvin_Fritl콤보 (IOI18_combo)C++17
100 / 100
31 ms744 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence(int n) { char p=' '; string c=""; vector<char> v(0),b={'A','B','X','Y'}; int ab=press("AB"),ax=press("AX"); if (ab&&ax) p='A'; else if (ab) p='B'; else if (ax) p='X'; else p='Y'; for (char ch:b){ if (p!=ch) v.push_back(ch); } c+=p; if (n==1) return c; for (int i=1;i<n-1;i++){ string s1=c+v[0],s2=c+v[1]; string s2a=s2+v[0],s2b=s2+v[1],s2c=s2+v[2]; int res=press(s1+s2a+s2b+s2c); if (res==i+2) c+=v[1]; else if (res==i+1) c+=v[0]; else c+=v[2]; } int toto1=press(c+v[0]),toto2=press(c+v[1]); if (toto1==n) return c+v[0]; else if (toto2==n) return c+v[1]; else return c+v[2]; }
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