In C laguage

$1.$ Develop a function that calculates the fibonacci series.

$2.$ Store the result in an array$($Calloc or Malloc$)$

$3.$ Double the size of the fibonacci series $($for example if we asked for $5,$ it would be up to $10($realloc$).$

$4.$ First ask for the elements, store the result in a malloc, and then double the size of the fibonacci series to the double. If we put $10,20.$

$5.$ The function can be a conventional function, the purpose of the program is the use of malloc, calloc and realloc.