Write a program that 1) Has two routines change_values () and square _ of _ number ( ). 2) Main program passes addresses of variables x and y to change_ values () and square of_number ( ). 3) Initial...

Extracted text: Write a program that 1) Has two routines change_values () and square _ of _ number ( ). 2) Main program passes addresses of variables x and y to change_ values () and square of_number ( ). 3) Initial values of x and y are 4 and9. Change values () is invoked first and it increments the value of the variables by 1. 4) Calculate the square of variables x and y using square_ of_ number ( ) routine. Print the squares of x and y.