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day 4 cleanup

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Gabriel Bizdoc 2025-12-04 09:11:40 +02:00
parent b04ae5c077
commit ce0ccaaafa
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GPG Key ID: 3F0EDAECA5BE9ED9
1 changed files with 4 additions and 2 deletions
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6
year25/day4.go
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@ -11,6 +11,7 @@ const Day4PaperRoll = '@'
func Day4Part1(r io.Reader, l Logger) (any, error) { func Day4Part1(r io.Reader, l Logger) (any, error) {
// 4 rolls in 8 adjacent positions // 4 rolls in 8 adjacent positions
const maxAdjacentRolls = 4
var accessibleRolls int var accessibleRolls int
g, err := geometry.ReaderToByteGrid(r) g, err := geometry.ReaderToByteGrid(r)
@ -30,7 +31,7 @@ func Day4Part1(r io.Reader, l Logger) (any, error) {
} }
} }
if count <= 4 { if count <= maxAdjacentRolls {
accessibleRolls += 1 accessibleRolls += 1
} }
} }
@ -40,6 +41,7 @@ func Day4Part1(r io.Reader, l Logger) (any, error) {
func Day4Part2(r io.Reader, l Logger) (any, error) { func Day4Part2(r io.Reader, l Logger) (any, error) {
// 4 rolls in 8 adjacent positions // 4 rolls in 8 adjacent positions
const maxAdjacentRolls = 4
var totalRemovedRolls int var totalRemovedRolls int
g, err := geometry.ReaderToByteGrid(r) g, err := geometry.ReaderToByteGrid(r)
@ -61,7 +63,7 @@ func Day4Part2(r io.Reader, l Logger) (any, error) {
} }
} }
if count <= 4 { if count <= maxAdjacentRolls {
removedRolls += 1 removedRolls += 1
g.Set(c, '.') // remove grid g.Set(c, '.') // remove grid
} }