This person is just using hard coded solutions to solve problems. You can check his recent solutions and see.
Project Euler: Problem 4, Palindromic numbers
7 segment LED display
Flag largest magnitude swings as they occur
Split a string into chunks of specified length
Decimation - Optimized for speed
Hackathon - String version
How brilliant are you?
Golomb's self-describing sequence (based on Euler 341)
That's some divisor you've got there...
Singularity v5 (with apologies to the true hack masters)
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