Thread: reading instructions

i want to write a program that reads and convert instructions into some numbers like for example

add 1,2
subtract 4,2

expected output is
000100010002
&
000200040002

where first 4 digits means instruction number
next 4 is the first number
last 4 is the 2nd number

what function can i use to read the input

Make a list of the instructions you want to support and their values.

You read in the instruction and break it up into the three parts:
the instruction, the first number, and the second number.

Then you can use something akin to

Code:

printf("%04d%04d%04d", value_of_instruction, first_number, second_number);

yes i know that
but how do i break it up?
should i use sscanf?

Thats one possiblity. You also have two delimiters (the space and the comma) so you could also use strtok()