#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence(int N) { string ans = ""; string button = "ABXY"; int t = press("AB"); if (t == 0) { t = press("X"); if (t == 0) ans = "Y", button = "ABX"; else ans = "X", button = "ABY"; } else { t = press("A"); if (t == 0) ans = "B", button = "AXY"; else ans = "A", button = "BXY"; } for (int i=1; i<N-1; i++) { t = press(ans+button[0]+ans+button[1]+button[0]+ans+button[1]+button[1]+ans+button[1]+button[2]); if (t == ans.length()+1) ans += button[0]; else if (t == ans.length()+2) ans += button[1]; else ans += button[2]; } for (int i=0; i<2; i++) { t = press(ans+button[i]); if (t == ans.length()+1) { ans += button[i]; break; } } if (t == 0) ans += button[2]; return ans; }