47 lines
1.0 KiB
Go
47 lines
1.0 KiB
Go
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// Unused solution: this works fine for the example, but doesn't work at all for the
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// real input data.
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package day10
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import "fmt" // debug
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// AnalyzePoints tries to determine whether the data looks sufficiently ordered.
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// It returns 'true' if it thinks we've got letters.
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func AnalyzePoints(points []*Point) bool {
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pointArr := makeBuffer(points)
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// count adjacencies
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count := 0
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for y := 0; y < len(pointArr[0]); y++ {
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for x := 0; x < len(pointArr); x++ {
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if pointArr[x][y] != '#' {
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continue
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}
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if checkPoint(pointArr, x-1, y) ||
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checkPoint(pointArr, x+1, y) ||
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checkPoint(pointArr, x, y-1) ||
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checkPoint(pointArr, x, y+1) {
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count++
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}
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}
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}
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fmt.Println(float64(count) / float64(len(points))) // debug
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return float64(count) >= 0.8*float64(len(points))
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}
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// Checks the point in the grid. If it is '#' returns true.
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func checkPoint(grid [][]byte, x, y int) bool {
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if x < 0 || x >= len(grid) ||
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y < 0 || y >= len(grid[0]) {
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return false
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}
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if grid[x][y] == '#' {
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return true
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}
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return false
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}
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