rev/ghost

[glacialcascade]

verify the dockerfile pls

[mud-ali]

dockerfile does not work

=> ERROR [3/3] RUN gcc -o chall ghost.c                                                      0.3s
------
 > [3/3] RUN gcc -o chall ghost.c:
0.299 ghost.c: In function 'Y':
0.299 ghost.c:5:22: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
0.299  int Y() { int k = 0; for(int i = 0; i < 9; i++) { k++; } return k; } 
0.299                       ^
0.299 ghost.c:5:22: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
------
Dockerfile:3
--------------------
   1 |     FROM gcc:4.9
   2 |     COPY ghost.c .
   3 | >>> RUN gcc -o chall ghost.c
   4 |     
--------------------
ERROR: failed to solve: process "/bin/sh -c gcc -o chall ghost.c" did not complete successfully: exit code: 1

[mud-ali]

lowk idk why you obfuscated a file thats not even given

couldve added some whitespace 😔

[mud-ali]

this is honestly not that obvious immediately imo,

not necessarily imperative, but i would recommend giving a hint along the lines of
Do you see any pattern? or smth similar idk exactly

Once you notice that the functions return values are the sequential numbers it becomes a lot more obvious what you need to do.

Alternatively, maybe the hint could like remind the player to look closely at the function names or smth.

tl;dr either they gotta realize that the unused functions spell out the flag, or that they return a series of numbers in order and then the rest falls in to place much better