#include <bits/stdc++.h> #include "combo.h" using namespace std; string guess_sequence(int N){ // 30 points // get first character; string f = string(N,' '); f[0] = 'Y'; string chs = "ABX"; for(char c: chs){ string s = string(1,c); if(press(s)){ f[0] = c; break; } } // check 1 - n - 1 only three 2 character string chk = ""; for(char c: "ABXY") if(c != f[0]){ chk += c; } for(int i = 1; i < N; i++){ for(int j = 0; j < 2; j++){ string s = f.substr(0,i) + chk[j]; if(press(s) == i + 1){ f[i] = chk[j]; break; } } if(f[i] == ' ') f[i] = chk[2]; } return f; }