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mine.go
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mine.go
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package mine
func UpdateBoard(board [][]byte, click []int) [][]byte {
m := len(board)
if m < 1 {
return board
}
n := len(board[0])
if n < 1 {
return board
}
if len(click) != 2 {
return board
}
x, y := click[0], click[1]
pos := [][]int{[]int{-1, 0}, []int{-1, 1}, []int{-1, -1}, []int{0, -1}, []int{0, 1}, []int{1, 1}, []int{1, -1}}
if board[x][y] == 'M' {
board[x][y] = 'X'
} else {
dfs(board, x, y, m, n, pos)
}
return board
}
func dfs(board [][]byte, x, y, m, n int, dirs [][]int) {
if x < 0 || x >= m || y < 0 || y >= n || board[x][y] != 'E' {
return
}
adjMineCnt := adjMines(board, x, y, m, n)
if adjMineCnt > 0 {
board[x][y] = byte('0' + adjMineCnt)
} else {
board[x][y] = byte('B')
for _, v := range dirs {
dfs(board, x+v[0], y+v[1], m, n, dirs)
}
}
}
func adjMines(board [][]byte, x, y, m, n int) int {
var cnt int
for i := x - 1; i <= x+1; i++ {
for j := y - 1; j <= y+1; j++ {
if i >= 0 && i < m && j >= 0 && j < n && board[i][j] == 'M' {
cnt++
}
}
}
return cnt
}