Submission #320712

#	Time	Username	Problem	Language	Result	Execution time	Memory
320712		NicolaAbusaad2014	Combo (IOI18_combo)	C++14	0 / 100	1 ms	200 KiB

combo

/**
 * Prof.Nicola
**/
#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
vector<string>v;
long n;
string ans;
void solve(long x)
{
    string t;
    long z;
    if(x<n-1){
        t=ans;
        t+=v[0];
        t+=v[0];
        t+=ans;
        t+=v[0];
        t+=v[1];
        t+=ans;
        t+=v[0];
        t+=v[2];
        t+=ans;
        t+=v[1];
        z=press(t);
        z-=x;
        ans+=v[2-z];
        solve(x+1);
    }
    else{
        t=ans+v[0];
        if(press(t)-x){
            ans+=v[0];
        }
        else{
            t=ans+v[1];
            if(press(t)-x){
                ans+=v[1];
            }
            else{
                ans+=v[2];
            }
        }
        return;
    }
}
void rem(string s)
{
    for(long i=0;i<4;i++){
        if(v[i]==s){
            v.erase(v.begin()+i);
            return;
        }
    }
}
std::string guess_sequence(int N) {
    n=N;
    v.push_back("A");
    v.push_back("B");
    v.push_back("X");
    v.push_back("Y");
    if(N==1){
        string s="A";
        if(press(s)){
            return s;
        }
        s="B";
        if(press(s)){
            return s;
        }
        s="X";
        if(press(s)){
            return s;
        }
        s="Y";
        return s;
    }
    else{
        string s="AB";
        long x;
        x=press(s);
        if(x==1){
            s="A";
            if(press(s)){
                ans+="A";
            }
            else{
                ans+="B";
            }
        }
        else{
            s="X";
            if(press(s)){
                ans+="X";
            }
            else{
                ans+="Y";
            }
        }
        rem(ans);
        solve(1);
    }
    return ans;
}

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