LegacyCiphers.lc.at: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as LegacyCiphers
Lines 61-71 of bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&start_line=61&end_line=71

import Base

# element n of a list of words (0 past the end)
def lc.at(xs: List<&2, U32>, n: Nat) -> U32:
  match xs:
    case Nil{}:
      0
    case Con{h, t}:
      match n:
        case 0n:
          h
        case 1n+p:
          lc.at(t, p)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32