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code gave run time because boilerplate code. Hackerrank must fix this line: " root = tree.insert(root: root, data: Int(readLine()!)!) ".
func getHeight(root: Node?) -> Int {
if root == nil {
return -1
} else {
let left = getHeight(root: root?.left)
let right = getHeight(root: root?.right)
if left > right {
return left + 1
} else {
return right + 1
}
}
}
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Tree: Height of a Binary Tree
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In Swift
code gave run time because boilerplate code. Hackerrank must fix this line: " root = tree.insert(root: root, data: Int(readLine()!)!) ".