Sha256: 1d5bc9b35423d66e4a3f28e55549b3956d7c90020fc32e9004ce1452f6ece35b
Contents?: true
Size: 670 Bytes
Versions: 50
Compression:
Stored size: 670 Bytes
Contents
#[derive(Debug, PartialEq)]
pub enum Error {
SpanTooLong,
InvalidDigit(char),
}
pub fn lsp(string_digits: &str, span: usize) -> Result<u64, Error> {
if span == 0 {
return Ok(1);
}
if let Some(invalid) = string_digits.chars().find(|c| !c.is_digit(10)) {
return Err(Error::InvalidDigit(invalid));
}
let products: Vec<u64> = string_digits.chars()
.map(|c| c.to_digit(10).unwrap() as u64)
.collect::<Vec<u64>>()
.windows(span)
.map(|w| w.into_iter().product())
.collect();
if let Some(&x) = products.iter().max() {
Ok(x)
} else {
Err(Error::SpanTooLong)
}
}
Version data entries
50 entries across 50 versions & 1 rubygems