Submission #916728

#	Time	Username	Problem	Language	Result	Execution time	Memory
916728		_VIBE	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

string guess_sequence(int N){
  	
  	//querying for first pos
  	
  	set<char> s={'A','X','B','Y'};
  	string ans;
  	for(auto x:s){
      	if(press(to_string(x))==1){
           ans+=x;
           s.erase(x);break;
        }
    }
  	
  	int val=1;
  	for(int i=1;i<n;i++){
      	for(auto x:s){
          	ans+=x;
          	if(press(ans)==val+1) break;
          	ans.pop_back();
        }
    }
  
  	return ans;
  
  
}

Compilation message (stderr)

combo.cpp:1:1: error: 'string' does not name a type
    1 | string guess_sequence(int N){
      | ^~~~~~