Day 2: Red-Nosed Reports

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FAQ

  • @Quant@programming.dev
    link
    fedilink
    14 days ago

    Uiua

    Took me a bit longer to get this one but still quite simple overall.
    Spent quite some time on getting to know the try and assert operators better.

    Run with example input here

    # Get the indices matching the ascending/
    # descending criteria
    CheckAsc ← ≡°□⍚(⍣(⊸⍤.≍⍆.)⍣(⊸⍤.≍⇌⍆.)0)
    # Get the indices matching the distance criteria
    CheckDist ← ≡°□⍚(⍣(⊸⍤.≠1∈:0)0×⊓≥≤1,3⌵⧈-)
    Split     ← ⊙(▽≠1)▽,,
    
    PartOne ← (
      &rs&fo "input-2.txt"
      ⊜(□⊜⋕≠@ .)≠@\n.
      CheckAsc.
      ▽
      CheckDist
      ⧻⊚
    )
    
    PartTwo ← (
      &rs&fo "input-2.txt"
      ⊜(□⊜⋕≠@ .)≠@\n.
      CheckAsc.
      Split
      CheckDist.
      Split
      ⊙(⊂)
      ⧻
      :
      ⍚(≡(▽:°⊟)⍜¤⊞⊟:≠1⊞=.⇡⧻.)
      ≡(⧻⊚CheckDist▽CheckAsc.°□)
      +⧻◴⊚
    )
    
    &p "Day 2:"
    &pf "Part 1: "
    &p PartOne
    &pf "Part 2: "
    &p PartTwo