Submission #960980

#	Time	Username	Problem	Language	Result	Execution time	Memory
960980		aminjon__	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

string guess_sequence(int N){
	string ans;
	if(press("AB") > 0){
		if(press("A") > 0){
			ans = "A";
			button.erase(button.begin());
		}
		else{
			ans = "B";
			
			button.erase(button.begin()+1);
		}
	}
	else{
		if(press("X") > 0){
			ans = "X";
			button.erase(button.begin()+2);
		}
		else{
			ans = "Y";
			button.erase(button.begin()+3);
		}
	}
	for(int i = 2;i <= N-1;i++){
		int r = press(ans+button[1] + ans+button[2]+button[0]+ans+button[2]+button[1]+ans+button[2]+button[2] );
		ans += button[r - ans.size()];
	}
	if(press(ans+button[0]+ans+button[1]) > ans.size()){
		if(press(ans+button[0]) > ans.size()){
			ans += button[0];
		}
		else{
			ans += button[1];
		}
	}
	else{
		ans += button[2];
	}
	return ans;
	
}

Compilation message (stderr)

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