Munching squares: Difference between revisions

=={{header|BQN}}==

Outputs a string that represents a PPM image.

BQN uses the <code>•bit</code> namespace for native bitwise operations, including casting. An input bit width and output bit width have to be given.

<syntaxhighlight lang="bqn">nl←@+10

XORppm ← {

g←⥊(0∾∾˜)¨((↕𝕩)16‿16•bit._xor⊢)˘↕𝕩

s←•Repr 𝕩

h←"P3"∾nl∾s∾" "∾s∾nl∾(•Repr 𝕩-1)∾nl

h∾∾∾⟜nl¨{¯1↓∾∾⟜' '¨•Repr¨𝕩}¨g

}</syntaxhighlight>

Example usage:

<syntaxhighlight lang="bqn">"xor.ppm" •FChars XORppm 256</syntaxhighlight>