#include "combo.h" #include <bits/stdc++.h> using namespace std; #define name "TENBAI" #define fi first #define se second #define endl '\n' #define setmin(x, y) x = min((x), (y)) #define setmax(x, y) x = max((x), (y)) #define sqr(x) ((x) * (x)) #define all(x) x.begin(), x.end() mt19937 hdp(chrono::high_resolution_clock::now().time_since_epoch().count()); int rand(int l, int r){return l + ((hdp() % (r - l + 1)) + r - l + 1) % (r - l + 1);} string s; string guess_sequence(int N) { s = "ABXY"; char f; f = (press("AB") ? (press("A") ? 'A' : 'B') : (press("X") ? 'X' : 'Y')); s.erase(find(all(s), f)); string s1, s2; s1 = f + string(N, s[0]), s2 = f + string(N, s[1]); string res(1, f); if (N == 1) return res; while (res.size() + 1 < N) { int t = press(res + s[0] + res + s[1] + s[0] + res + s[1] + s[1] + res + s[1] + s[2]); if (t == res.size()) res += s[2]; else if (t == res.size() + 1) res += s[0]; else res += s[1]; } if (press(res + s[0]) == N) return res + s[0]; else if (press(res + s[1]) == N) return res + s[1]; return res + s[2]; }