Use memset() to init basis_coef if possible
Serialize Pair_present and use memset() to initialize
Updated optimizations
Short id -> int id
Converting short to int
Convert short to int
Add static to file global variables and const to some arguments
Removed unneeded prototype
Added static to file globals
Added const to arguments, static to file globals, and used memset() to init mem
Added static to file globals and const to arguments
Change short to int, added element size to memset call
Change short to int