Leetcode Note: Go - Flipping an Image
Flipping an Image - LeetCode
https://leetcode.com/problems/flipping-an-image/
- Go 言語で取り組んだメモ
所感
- image matrix が int[][] で渡されるので値をを flip して int[][] で return する
回答
Flipping an Image - LeetCode
https://leetcode.com/problems/flipping-an-image/solution/
One pass with Go - LeetCode Discuss
https://leetcode.com/problems/flipping-an-image/discuss/2469608/One-pass-with-Go
func flipAndInvertImage(image [][]int) [][]int {
flip := func(a int) int {
if a == 0 {
return 1
}
return 0
}
for row := 0; row < len(image); row++ {
l, r := 0, len(image[row])-1
for l < r {
image[row][l], image[row][r] = flip(image[row][r]), flip(image[row][l])
l++
r--
}
if l == r {
image[row][r] = flip(image[row][r])
}
}
return image
}