/*
* function TreeNode(x) {
* this.val = x;
* this.left = null;
* this.right = null;
* }
*/
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param root TreeNode类
* @return TreeNode类
*/
function pruneLeaves( root ) {
// write code here
if(root == null){
return null;
}
if(root.left && root.left.left == null && root.left.right== null){
return null;
}
if(root.right && root.right.left == null && root.right.right== null){
return null;
}
root.left = pruneLeaves(root.left);
root.right = pruneLeaves(root.right);
return root;
}
module.exports = {
pruneLeaves : pruneLeaves
};
* function TreeNode(x) {
* this.val = x;
* this.left = null;
* this.right = null;
* }
*/
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param root TreeNode类
* @return TreeNode类
*/
function pruneLeaves( root ) {
// write code here
if(root == null){
return null;
}
if(root.left && root.left.left == null && root.left.right== null){
return null;
}
if(root.right && root.right.left == null && root.right.right== null){
return null;
}
root.left = pruneLeaves(root.left);
root.right = pruneLeaves(root.right);
return root;
}
module.exports = {
pruneLeaves : pruneLeaves
};