Write the full C++ Code for a function that prompts the user to enter a character, then stores the user's response in a char variable. The function should return the character entered by the user. (The function will not have any actual arguments passed to it.) Name the function getChar().

Write the full C++ code for a function that receives four integers. The function should calculate the average of the four integers, then return the result (which may contain a decimal place). Name the function calcAverage().

Write the full C++ code for a function that receives an integer passed to it. The function, named halveNumber)(), should divide the integer by 2, then return the result (which may contain a decimal place).