Submission #1191842

#	Time	Username	Problem	Language	Result	Execution time	Memory
1191842		p4r4d0_x	Combo (IOI18_combo)	C++20	Compilation error	0 ms	0 KiB

combo

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

string guess_sequence(int N) {
  vector<char> a = {'A', 'B', 'X', 'Y'};
  string s = "";
  for(int i = 0; i < 4; ++i){
      s += a[i];
      if(press(s) == 1){
          break;
      }
      else s = "";
  }
  string st = "";
  for(int i = 0; i < 4; ++i){
      st = s;
      st += a[i];
      if(press(st) == 2){
          s = st;
          break;
      }
  }
  for(int i = 0; i < 4; ++i){
      st = s;
      st += a[i];
      if(press(st) == 3){
          s = st;
          break;
      }
  }
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:32:10: error: 'S' was not declared in this scope
   32 |   return S;
      |          ^