#include "combo.h"
std::string guess_sequence(int N)
{
std::string ans = "";
if (press("AB") > 0)
if (press("A") > 0)
ans = "A";
else
ans = "B";
else if (press("X") > 0)
ans = "X";
else
ans = "Y";
std::string all = "ABXY";
std::string rem = "";
for (char c : all)
if (c != ans[0])
rem += c;
char b, x, y;
b = rem[0];
x = rem[1];
y = rem[2];
for (int i = 2; i < N; i++)
{
int res = press((ans + b) + (ans + x + b) + (ans + x + x) + (ans + x + y));
if (res == ans.size())
ans += y;
else if (res == ans.size() + 1)
ans += b;
else
ans += x;
}
if (N > 1)
{
if (press(ans + b) == N)
ans += b;
else if (press(ans + x) == N)
ans += x;
else
ans += y;
}
return ans;
}
