# Batlle boats in space
The challenge asks us to find a `m x n` matrix consisting of only `B` and `~` characters
Checking 'battleship.c', we can see more than 1000 lines of code
We easily notice the map check code snippet but how to print the map with around 1000 lines of `if`
However, every `if` have the same format that compare `a[i][j] != c` so we can change `!=` to `=` and run the code again
Then we get a map:```~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~BBBBB~~B~~~~~~B~~BBBBB~~BBBBBBB~BBBBBBB~~~~B~~BBBBB~~BBBBBBB~B~~~~~B~B~~~~B~~~~~~~~~BBBBBBB~B~~~~~~B~~~~B~~~BBBBBBB~~~~~~~~~~BBBBB~~B~~~~~~B~BBBBBBB~BBBBBB~~B~B~~~~~B~B~~~~~~B~B~~~~~B~~~~B~~~~B~~~~~~~~~B~~B~~~~~B~~~~B~~~~BB~~~~B~B~~~B~~~~~~~~~~~~~B~~~~B~~~~~~B~~~B~B~~~~~B~~~~~~~~~~~~B~~~~~B~B~~~~~~B~~~~B~~~~B~~~~~B~~~B~~~~~~~B~~~~~~B~B~~~~~~~~~~B~~~~BBBBB~~~~B~~~B~~~~~~~~~~B~~~~B~B~~~B~B~~B~~~~~~~~~~~~~~B~~~~B~~~~~~B~~~B~B~~~~~B~~~~~~~~~~~~B~~~~~~~B~~~~~~B~~~~B~~~~B~~~~~B~~~~BBBBB~~BBBBBBBB~B~~~~~~~~~~B~~~~B~~~~~~~B~~~~~BBBBB~~~~~B~~~~B~~B~~B~BB~~~~~~~~~~~~~~~~B~~~~BBBBBBBB~~BBBBB~~~~B~~~~~~~~~~~~~BBBBB~~BBBBBBBB~~~~B~~~~BBBBBB~~~~~~~~~~B~B~~~~~~B~B~~~~~~~~~~B~~~~B~~~~~~~~B~~~~~~~~~B~~~~B~~~~B~~~B~B~B~~B~~~~~~~~~~~~~~B~~~~B~~~~~~B~~B~~~B~~~~B~~~~~~~~~~~~~~~~~~B~B~~~~~~B~~~~B~~~~B~~~~~~~~~B~~~~~B~B~~~~~~B~B~~~~~B~~~~B~~~~B~~~~~~~~~B~~B~~~~~B~~~~B~~~~B~~~~BB~B~~~B~~~~~~~~~~~~~B~~~~B~~~~~~B~~B~~~B~~~~B~~~~~~~~~~~~B~~~~~B~B~~~~~~B~~~~B~~~~B~~~~~~~~~~BBBBB~~B~~~~~~B~~BBBBB~~~~~B~~~~B~~~~~~~~~~B~~BBBBB~~BBBBBBB~B~~~~~B~B~~~~B~BBBBBBB~~~~B~~~~B~~~~~~B~~B~~~B~~~~B~~~~BBBBBBB~~BBBBB~~B~~~~~~B~BBBBBBB~B~~~~~~~B~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~```Flag: `shctf{sink_that_ship}`
p/s: num_bullets is useless