Submission #745115

#TimeUsernameProblemLanguageResultExecution timeMemory
745115teo_thrashCombo (IOI18_combo)C++14
5 / 100
1 ms208 KiB
#include<bits/stdc++.h>
#include "combo.h"

using namespace std;

string guess_sequence(int n) {
    string p="AB";
    vector<char> a={'A', 'B', 'X', 'Y'};
    string S, curr;
    vector<char> let;

    if(!press("AB")){
        p="XY";
    }
    char c=p[0];
    if(!press(p.substr(0, 1))){
        c=p[1];
    }

    S+=c;

    for(char i: a){
        if(i!=c){
            let.push_back(i);
           // cerr<<a[i]<<" ";
        }
    }
    //cerr<<endl;

    int coins=0;
    for(int i=2; i<n; i++){
        curr=S+let[0]+let[0] + S+let[0]+let[1] + S+let[0]+let[2] + S+let[1];

        coins=press(curr);
        if(coins==i+1){
            S+=let[0];
        }
        if(coins==i){
            S+=let[1];
        }
        if(coins==i-1){
            S+=let[2];
        }
    }

    if(press(S+let[0])==n){
        S+=let[0];
    }else{
        if(press(S+let[1])==n){
            S+=let[1];
        }else{
            S+=let[2];
        }
    }


    return S;
}
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