Submission #1219719

#	Time	Username	Problem	Language	Result	Execution time	Memory
1219719		melody_rules	Combo (IOI18_combo)	C++20	5 / 100	20 ms	492 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
// #define int long long

using namespace std;

std::string guess_sequence(int N) {
  std::string p = "";
  
  while(true) {
    std::string q;
    q = p;
    
    p += "A";
    
    if(press(p) == p.length() && p.length() == N)
    break;
    
    else if(press(p) == p.length())
    continue;
    
    p = q;
    
    p += "B";
    
    if(press(p) == p.length() && p.length() == N)
    break;
    
    else if(press(p) == p.length())
    continue;
    
    p = q;
    
    p += "X";
    
    if(press(p) == p.length() && p.length() == N)
    break;
    
    else if(press(p) == p.length())
    continue;
    
    p = q;
    
    p += "Y";
    
    if(p.length() == N)
    break;
  }
  
  return p;
}

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