Define a structured data type called struct complex which may be used to represent a complex number consisting of a real part and an imaginary part. Use the typedef mechanism to give your data type the new name Complex. Write a function called distance which calculates the distance between two complex numbers in the complex plane. The function should have prototype float distance$($Complex z$1,$ Complex z$2)$; Note that the distance between two complex numbers in the complex plane is given by where and are the real part and the imaginary part of the complex number $,$ respectively, and and are the real part and the imaginary part of the complex number $,$ respectively.