Cargo Features

projecteuler_rs has no features set by default.

[dependencies]
projecteuler_rs = { version = "0.1.0", features = ["pe_0001", "pe_0002", "pe_0003"] }
pe_0001
pe_0002
pe_0003 = primal

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

primal pe_0003?

Enables primal ^0.2