Submission #1077985

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077985		PikachudoraEHE	Combo (IOI18_combo)	C++14	30 / 100	53 ms	960 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>
using namespace std;
string guess_sequence(int N) {
  string p;
  //p = "";
  //p+="AB";
  //int coins = press(p);
  if(press("AB")==0){
    if(press("X")==0){
      //first = Y
      p = "Y";
      for(int i=1;i<=N-1;i++){
          if(press(p+'A')==i+1){
            p+='A';
          }
          else if(press(p+'B')==i+1){
            p+='B';
          }
          else{
            p+='X';
          }
      }
    }
    else{
      //first = x
      p = "X";
      for(int i=1;i<=N-1;i++){
          if(press(p+'A')==i+1){
            p+='A';
          }
          else if(press(p+'B')==i+1){
            p+='B';
          }
          else{
            p+='Y';
          }
      }
    }
  }
  else{
    if(press("A")==0){
      //first = B
      p = "B";
      for(int i=1;i<=N-1;i++){
          if(press(p+'A')==i+1){
            p+='A';
          }
          else if(press(p+'Y')==i+1){
            p+='Y';
          }
          else{
            p+='X';
          }
      }
    }
    else{
      //first = A
      p = "A";
      for(int i=1;i<=N-1;i++){
          if(press(p+'Y')==i+1){
            p+='Y';
          }
          else if(press(p+'B')==i+1){
            p+='B';
          }
          else{
            p+='X';
          }
      }
    }
  }
  return p;
}

• Subtask 1: 5 / 5
• Subtask 2: 25 / 95