Submission #1142670

#	Time	Username	Problem	Language	Result	Execution time	Memory
1142670		younesb2	Combo (IOI18_combo)	C++20	10 / 100	18 ms	456 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>

using namespace std;

string guess_sequence(int n) {
    string a="";
    int b=0;
    vector <char> c={'A','B','X','Y'};
    for(int i=0;i<n;i++) {
        for(const auto& i : c) {
            a.push_back(i);
            int d=press(a);
            if(d-b==1) {
                b++;
                break;
            }
            a.pop_back();
        }
    }
    return a;
}

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