1. Base Converter

Write a program in C++ that converts a number from one base to another base for the following cases:

Binary to Decimal/Decimal to Binary Binary to Octal/Octal to Binary Binary to Hexadecimal/Hexadecimal to Binary

Your program should contain functions for each to these base conversions. Each function should take an array of characters representing the initial number and return an array of characters representing the final number.