how to get c++ string length
string txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
cout << "The length of the txt
string is: " << txt.length();
//Tip: You might see some C++ programs that use the size() function to get the length of a string. This is just an alias of length().
//It is completely up to you if you want to use length() or size():
string txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
cout << "The length of the txt string is: " << txt.size();