Bigint-in-c

Big int support in c

1. Type make to build the program.
2. An executable will be built named - bignumcalc
3. Give an input, output file to the executable.
4. 1st line of input file should have the precision number(Number of digits).
5. 2nd line should have the operation. Ex - 20 11111111111111111111 + 22222222222222222222 * 3