Write the three separate C++ code that compiles correctly and is in different cpp files. Sorry, only have one question left to post, so I'm hoping to get help in one try.

One, 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).

Two, 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().

Three, 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().