Search:

Instead of system() function , first try to search desired *.exe. If you find it, then try exec() command.

Please look this site. You will find lots of interesting program codes.

Sorry , :D
INC(A,x,y):
Increase A[x] by y
NullNumber:
for all x upto Max_Digit , let A[x]=0
SetPosition:
Numbers are added into A[x] from left to write. Return , number's digit....

First Message. :cool: Here is a part of my program. You can calculate 10000!, maybe more.
I am cutting code.

#define Max_Digit 20000 // May be changed by memory
#define Base 10 // 256...