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# options
## Instructions
5 years ago
Write a program that takes an undefined number of arguments which could be considered as `options` and writes on the standard output a representation of those `options` as groups of `bytes` followed by a newline (`'\n'`).
- An `option` is an argument that begins with a `-` and that can have multiple characters which could be :
4 years ago
-abcdefghijklmnopqrstuvwxyz
- All `options` are stocked in a single `int` and each `options` represents a bit of that `int`, and should be stocked like this :
- 00000000 00000000 00000000 00000000
- ******zy xwvutsrq ponmlkji hgfedcba
- Launching the program without arguments or with the `-h` flag activated must print all the valid `options` on the standard output, as shown on one of the following examples.
- Please note the `-h` flag has priority over the others flags when it is called first in one of the arguments. (See the examples)
- A wrong `option` must print `Invalid Option` followed by a newline.
### Usage
```console
student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/[[ROOT]]/test$ ./test -abc -ijk | cat -e
00000000 00000000 00000111 00000111$
student@ubuntu:~/[[ROOT]]/test$ ./test -z | cat -e
00000010 00000000 00000000 00000000$
student@ubuntu:~/[[ROOT]]/test$ ./test -abc -hijk | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/[[ROOT]]/test$ ./test -h | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/[[ROOT]]/test$ ./test -zh | cat -e
00000010 00000000 00000000 10000000$
student@ubuntu:~/[[ROOT]]/test$ ./test -z -h | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/[[ROOT]]/test$ ./test -hhhhhh | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/[[ROOT]]/test$ ./test -eeeeee | cat -e
00000000 00000000 00000000 00010000$
student@ubuntu:~/[[ROOT]]/test$ ./test -% | cat -e
Invalid Option$
student@ubuntu:~/[[ROOT]]/test$
5 years ago
```