Best one liner

Taketo Konno
Tokyo, Japan
inaniwa3@gmail.com

Judges' comments:

To build:

make konno

To run:

./konno N
# where N is 0 to 255

Try:

./konno 30

Selected Judges Remarks:

This entry is a good one-liner to analyze completely.

For extra credit, what are the minimal changes to convert it to 64-bit integers so that it could print 32 lines?

Author’s comments:

Remarks

This program outputs elementary cellular automaton patterns.

Try:

./konno 30
./konno 90
./konno 102
./konno 109
./konno 165

There are 256 (from 0 to 255) possible rules.

Obfuscation

This program uses bit operations. I think

7&O<<!o>>!o+29

is an intersting operation. This isn’t equal to

7&O>>29

operation. What is the operation doing?

Limitation

This program assumes that the size of int is 4.

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