0notes.txt

-C++ Template: The Complete Guide — David Vandevoorde, 
Nicolai Josuttis, Doug Gregor
-The C++ Standard Library: A Tutorial and Reference — Nicolai Josuttis
-Modern C++ Design — Andrei Alexandrescu
#include<iostream>
#include<cmath>
#include<string>
#include<climits>
#include<float.h>


std :: cout use this everywhere or just standardize it at the be begining as
using std::cout
same for std::cin
using std::cin
this thing can be done at global level or at local level
even for strings u need to standardize as
std :: string string_name;  --- syntax
if we want to use endl thn also we need to write it as std::endl



npos == -1 used for testing string or may be anything else too

// function or methods studied
    // string.length()
    // string.size()
    // string.append()
    // string.insert()
    // string.erase()
    // string.pop_back()
    // string.replace()
    // string.find()
    // string.substr()
    // string.find_first_of()
    // string.compare();