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@@ -106,7 +106,7 @@ func (p *Point) getDestinations(board [][]byte, height int, width int) []Point {
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destinations = append(destinations, Point{y: p.y - 1, x: p.x, steps: p.steps})
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}
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- if p.y+1 >= 0 && board[p.y+1][p.x] != Rock {
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+ if p.y+1 < height && board[p.y+1][p.x] != Rock {
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destinations = append(destinations, Point{y: p.y + 1, x: p.x, steps: p.steps})
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}
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