Submission #1218401

#	Time	Username	Problem	Language	Result	Execution time	Memory
1218401		tapilyoca	Combo (IOI18_combo)	C++20	0 / 100	0 ms	408 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using str = string;
template<typename T>
using vec = vector<T>;
#define pb push_back

std::string guess_sequence(int N) {
    str S = "";
    ll len = 1;
    ll check = press("A");
    if(check == 1) {
        while(S.length() != N) {
            ll lol = press(S + "B" + S + "XB" + S + "XX" + S + "XY");
            if(lol == len+1) S.pb('B');
            else if(lol == len + 2) S.pb('X');
            else S.pb('Y');
        }
    }
    check = press("B");
    if(check == 1) {
        while(S.length() != N) {
            ll lol = press(S + "A" + S + "XA" + S + "XX" + S + "XY");
            if(lol == len+1) S.pb('A');
            else if(lol == len + 2) S.pb('X');
            else S.pb('Y');
        }
    }
    check = press("X");
    if(check) {
        while(S.length() != N) {
            ll lol = press(S + "A" + S + "BA" + S + "BX" + S + "BY");
            if(lol == len+1) S.pb('A');
            else if(lol == len + 2) S.pb('B');
            else S.pb('Y');
        }
    }

    while(S.length() != N) {
            ll lol = press(S + "A" + S + "BA" + S + "BX" + S + "BB");
            if(lol == len+1) S.pb('A');
            else if(lol == len + 2) S.pb('B');
            else S.pb('X');
    }

    return S;
}

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