Submission #1022972

#	Time	Username	Problem	Language	Result	Execution time	Memory
1022972		HishamAlshehri	Combo (IOI18_combo)	C++17	0 / 100	1 ms	344 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string guess_sequence(int N) {
    string s = "";
    string t = "ABXYABXY";
    int c = press("ABB");
    if (c == 2)
    {
      s += 'A';
    }
    else if (c == 1)
      s += 'B';
    else
    {
      c = press("XYY");
      if (c == 1)
        s += 'Y';
      else
        s += 'X';
    }
    int idx = 0;
    for (int i = 0; i < 4; i++) if(s[0] == t[i]) {idx = i; break;}
    char q1 = t[idx + 1], q2 = t[idx + 2], q3 = t[idx + 3];
    for (int i = 1; i < N; i++)
    {
        c = press(s + q1 + s + q2 + q1 + s + q2 + q2 + s + q2 + q3);
        if (!c) s += q3;
        else if (c == 1) s += q1;
        else s += q2;
    }
    return s;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95