24 lines
456 B
Go
24 lines
456 B
Go
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package q04
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func waterCorners(grid [][]rune, x, y int) int {
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isWater := func(x, y int) int {
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if x < 0 || y < 0 || x >= len(grid) || y >= len(grid[x]) || grid[x][y] == ' ' {
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return 1
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}
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return 0
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}
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return isWater(x-1, y) + isWater(x+1, y) + isWater(x, y-1) + isWater(x, y+1)
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}
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func solveP1(grid [][]rune) int {
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var ps int
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for x := range grid {
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for y := range grid[x] {
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if waterCorners(grid, x, y) == 3 {
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ps++
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}
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}
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}
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return ps
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}
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