제출 #963835

#제출 시각아이디문제언어결과실행 시간메모리
963835HezovCombo (IOI18_combo)C++17
100 / 100
16 ms2028 KiB
#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string guess_sequence(int N)
{
    string s;
    char a,b,c,d;
    if(press("AB"))
    {
        c = 'X' , d = 'Y';
        if(press("A"))
            a = 'A' , b = 'B';
        else a = 'B' , b = 'A';
    }
    else 
    {
        c = 'A' , d = 'B';
        if(press("X"))
            a = 'X' , b = 'Y';
        else 
            a = 'Y' , b = 'X';
    }
    s+=a;
    if(N==1)
        return s;
    for(int i = 1;i<N-1;i++)
    {
        int k = press(s+b+b+s+b+c+s+b+d+s+c);
        if(k==i)
            s+=d;
        if(k==i+1)
            s+=c;
        if(k==i+2)
            s+=b;
    }
    if(press(s+b)==N)
        s+=b;
    else if(press(s+c)==N)
        s+=c;
    else s+=d;
    return s;
}
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