Write a set of functions to implement a heap$-$based memory manager.$$

Your mission is to write a module implementing$$malloc$,$ free, and$$realloc$.$ Acquire a block of memory as described below $($the address and size of this data are variables in your module$).$ Create all structures in this block so that subsequent calls to these functions work correctly. Use a minheap for free blocks in your final version, but you might choose to use an array to get things working initially. Don$$t forget that malloc ensures that allocated blocks have been reset to $0.$