Submission #769298

#	Time	Username	Problem	Language	Result	Execution time	Memory
769298		Mery2005	Combo (IOI18_combo)	C++14	5 / 100	1 ms	208 KiB

combo

#include "combo.h"
#include <iostream>
#include <algorithm>
#include <queue>
#include <cmath>
#include <vector>
#include <list>
#include <string>
#include <unordered_map>
#include <map>
#include <set>
#include <stack>
#include <string>
#include <iomanip>
#include <fstream>
 
using namespace std;
 
string guess_sequence(int N){
  string t;
  char x[4];
  if(press("A")){
    t = "A";
    x[0] = 'B';
    x[1] = 'X';
    x[2] = 'Y';
  }
  if(press("B")){
    t = "B";
    x[0] = 'A';
    x[1] = 'X';
    x[2] = 'Y';
  }
  if(press("X")){
    t = "X";
    x[0] = 'B';
    x[1] = 'A';
    x[2] = 'Y';
  }
  if(press("Y")){
    t = "Y";
    x[0] = 'B';
    x[1] = 'X';
    x[2] = 'A';
  }
  string s = t;
  for(int i = 0 ; i < (N - 2) ; i++){
    int ans = press(s + x[0] + x[0] + s + x[0] + x[1] + s + x[0] + x[2] + s + x[1]);
    if(ans == (int)s.size()){
      s += x[2];
    }
    else if(ans == ((int)s.size() + 1)){
      s += x[1];
    }
    else{
      s += x[0];
    }
  }
  int num = press(s + x[0] + s + x[1]);
  if (num == N){
    num = press(s + x[0]);
    if (num == N){
      return (s + x[0]);
    } 
    else{
      return (s + x[1]);
    }
  } 
  else{
    return (s + x[2]);
  }
}

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