c ++

1. (Display matrix of Os and 1s) Write a function that displays an n-by-n matrix using the following header void printMatrix(int n) Each element is Oor 1, which is generated randomly. Write a test program that prompts the user to enter n and displays an n-by-n matrix. Here is a sample run: Enter n: 3 010 000 111 2. (Return number of digits) Write a function that returns the number of digits in an integer using the following header: int getSize(int n) For example, getSize(45) returns 2, getSize(3434) returns 4, getSize(4) returns 1, and getSize(0) returns 1. Write a test program that prompts the user to enter an integer and displays its size