Submission #1322207

#	Time	Username	Problem	Language	Result	Execution time	Memory
1322207		aritro_	Combo (IOI18_combo)	C++20	10 / 100	16 ms	444 KiB

combo

#include<bits/stdc++.h>
using namespace std;

int press(string p);

string guess_sequence(int n){
    string ans="";
    int cur=1;
    if(press("A")==1) ans+="A";
    else if(press("B")==1) ans+="B";
    else if(press("X")==1) ans+="X";
    else ans+="Y";
    while(cur<n){
        if(ans[0]!='A'&&press(ans+'A')>cur){
            cur++;
            ans+='A';
        }else if(ans[0]!='B'&&press(ans+'B')>cur){
            cur++;
            ans+='B';
        }else if(ans[0]!='X'&&press(ans+'X')>cur){
            cur++;
            ans+='X';
        }else if(ans[0]!='Y'){
            cur++;
            ans+='Y';
        }
    }
    return ans;
}

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