Submission #140698

#	Time	Username	Problem	Language	Result	Execution time	Memory
140698		astoria	Combo (IOI18_combo)	C++14	0 / 100	1 ms	200 KiB

combo

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

string guess_sequence(int N){
  int xx = press("X"); int aa = press("A"); int bb = press("B");
  string solved_string = "";
  if (xx==1) solved_string+="X";
  else if (bb==1) solved_string+="B";
  else if (aa==1) solved_string+="A";
  else solved_string+="Y";
  
  char valids[3];
  int ct=0;
  if (solved_string!="A"){ valids[ct] = 'A'; ct++;}
  if (solved_string!="B"){ valids[ct] = 'B'; ct++;}
  if (solved_string!="X"){ valids[ct] = 'X'; ct++;}
  if (solved_string!="Y"){ valids[ct] = 'Y'; ct++;}
  
  for (int i=1; i<N; i++){
  	string newnew = solved_string + valids[0] + valids[1] + solved_string + valids[0] + valids[2] + solved_string + valids[0] + valids[0] + solved_string + valids[1];
    int p = press(newnew);
    if (p==i+2) solved_string+=valids[0];
    else if (p==i+1) solved_string+=valids[1];
    else solved_string+=valids[2];
  }
  return solved_string;
}

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