alazyreader/AdventOfCode2021
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inline grid field to type alias

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This commit is contained in:
David 2021-12-05 14:46:48 -05:00
parent d2699dfd24
commit 056ac16cf1
1 changed files with 8 additions and 14 deletions
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22
05/main.go
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@ -41,13 +41,11 @@ type point struct {
y int y int
} }
type grid struct { type grid []int
m []int
}
func (g *grid) AddLine(start, end point, includeHorizontal bool) { func (g *grid) AddLine(start, end point, includeHorizontal bool) {
for _, p := range LineFromPoints(start, end, includeHorizontal) { for _, p := range LineFromPoints(start, end, includeHorizontal) {
g.m[p.x+p.y*1000]++ (*g)[p.x+p.y*1000]++
} }
} }
@ -108,17 +106,15 @@ func parsePoints(line string) (point, point) {
func partOne() { func partOne() {
scanner := makeScanner(false) scanner := makeScanner(false)
grid := &grid{ grid := make(grid, 1_000_000)
m: make([]int, 1_000_000),
}
for scanner.Scan() { for scanner.Scan() {
line := scanner.Text() line := scanner.Text()
start, end := parsePoints(line) start, end := parsePoints(line)
grid.AddLine(start, end, false) grid.AddLine(start, end, false)
} }
var danger int var danger int
for i := range grid.m { for i := range grid {
if grid.m[i] > 1 { if grid[i] > 1 {
danger++ danger++
} }
} }
@ -128,17 +124,15 @@ func partOne() {
func partTwo() { func partTwo() {
scanner := makeScanner(false) scanner := makeScanner(false)
grid := &grid{ grid := make(grid, 1_000_000)
m: make([]int, 1_000_000),
}
for scanner.Scan() { for scanner.Scan() {
line := scanner.Text() line := scanner.Text()
start, end := parsePoints(line) start, end := parsePoints(line)
grid.AddLine(start, end, true) grid.AddLine(start, end, true)
} }
var danger int var danger int
for i := range grid.m { for i := range grid {
if grid.m[i] > 1 { if grid[i] > 1 {
danger++ danger++
} }
} }