Question 1 8 points Save Answer You are given a mathematical function as follows, where all variables are of integer types. if s =0 f s>0 andt 0 A(s 1,A(s,t 1)),if s0 and t 0 A(s t)A(s -1,1) (1) Give the C code for computing the function A(s, t)[4 points] (2) Use comments to indicate the four steps of the Fantastic Four Abstract Approach. [2 points] (3) Write the main program to call your function and print the result. Your actual parameters are x and y. You must read the values of x and y from the keyboard. [2 points]