Thread: Question about cin function

Hi dudes,
i have a problem in using cin function.
i've written code for checking parantheses Balance,
it works only for non-empty strings, but doesn't work for empty strings.
however i know the problem is coming from cin function, but i can't handle it!
here is a part of my code,
thanks in advance, for any help

Code:

int main()
{
	int n; 
	cin>>n;
	string st;
	vector<string> vct;
	
	while(n!=0)
	{
		cin>>st;
		if (st.empty())
		{
			//string is empty and Balanced
			//n--;
		}


		else
		{
      if(checkBalanced(st))
		vct.push_back("Yes");
	  else	
		vct.push_back("No"); 
	   n--;
		}
	}
	for (int i=0 ; i<vct.size() ; i++)
		cout << vct.at(i) << endl;
	
	return 0;
}