000.rs: indentation
001.rs: indentation, unsigned
002.rs: indentation, unsigned
003.rs: indentation, unsigned
004.rs: indentation, unsigned
005.rs: indentation, unsigned
006.rs: indentation, use pow
007.rs: indentation, unsigned, use function for primes
008.rs: indentation, simpler file read
009.rs: indentation, unsigned
010.rs: indentation, use function for primes
011.rs: indentation, simpler file read
012.rs: indentation, unsigned, use factorize function
013.rs: indentation, simpler file read
014.rs: indentation, unsigned
015.rs: indentation, unsigned, shorter
016.rs: indentation, unsigned
017.rs: indentation, unsigned
018.rs: indentation, unsigned
019.rs: indentation, unsigned, remove dead code