C Programming

3. Write a program that implements two functions as follows: (a) A function called fibonacci (...), which would compute the first 21 Fibonacci numbers Fo, F,. F2o. The formal arguments of the function should be the array storing the Fibonacci numbers, and the size of the array. The first two Fibonacci num- bers are Fo - 0, Fi - 1, and thereafter each successive Fibonacci number F is the sum of the two preceding Fibonacci numbers F-1 and Fi-2. (b) A function called gcd (...), which takes as input arguments the array of Fibonacci numbers, computed earlier, and two integer indices in the array, each greater than 0. The function should return the gcd of the two elements of the array, indicated by the indices