Submission #926391

#TimeUsernameProblemLanguageResultExecution timeMemory
926391HaciyevAlikCombo (IOI18_combo)C++14
5 / 100
1 ms516 KiB
#include <bits/stdc++.h>
#include "combo.h"
using namespace std;

string guess_sequence(int N) {
    char arr[4] = {'A','B','X','Y'};
    string temp="";
    char ex;
    if(press("A")) {
        ex='A';
    } else if(press("B")) {
        ex='B';
    } else if(press("X")) {
        ex='X';
    } else {
        ex='Y';
    }
    temp += ex;
    vector<char> c;
    for(int i=0;i<4;++i){
        if(arr[i]!=ex) c.push_back(arr[i]);
    }
    for(int i=1;i<N-1;++i) {
        string cur=temp;
        cur+=c[0];
        cur+=temp;
        cur+=c[1]; cur+=c[0];
        cur+=temp;
        cur+=c[1]; cur+=c[1];
        cur+=temp;
        cur+=c[1]; cur+=c[2];
        int p=press(cur);
        if(p == int(temp.size())) {
            temp += c[2];
        } else if(p == int(temp.size())+1) {
            temp += c[0];
        } else {
            temp += c[1];
        }
    }
    string cur=temp;
    cur += c[0];
    if(press(cur) == N) {
        return cur;
    }
    cur.pop_back();
    cur += c[1];
    if(press(cur) == N) {
        return cur;
    }
    temp += c[2];
    return temp;
}

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