剑指offer
把二叉树打印成多行
相似的企业真题
时间限制：C/C++ 1秒，其他语言2秒
空间限制：C/C++ 64M，其他语言128M
热度指数：305246
本题知识点：
树
bfs
算法知识视频讲解
校招时部分企业笔试将禁止编程题跳出页面，为提前适应，练习时请使用在线自测，而非本地IDE。
题目描述
从上到下按层打印二叉树，同一层结点从左至右输出。每一层输出一行。
示例1
输入
复制
{8,6,10,5,7,9,11}
{8,6,10,5,7,9,11}
返回值
复制
[[8],[6,10],[5,7,9,11]]
[[8],[6,10],[5,7,9,11]]
说明：本题目包含复杂数据结构TreeNode，
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import java.util.ArrayList; /* public class TreeNode { int val = 0; TreeNode left = null; TreeNode right = null; public TreeNode(int val) { this.val = val; } } */ public class Solution { ArrayList<ArrayList<Integer> > Print(TreeNode pRoot) { } }
/* struct TreeNode { int val; struct TreeNode *left; struct TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) { } }; */ class Solution { public: vector<vector<int> > Print(TreeNode* pRoot) { } };
# -*- coding:utf-8 -*- # class TreeNode: # def __init__(self, x): # self.val = x # self.left = None # self.right = None class Solution: # 返回二维列表[[1,2],[4,5]] def Print(self, pRoot): # write code here
/* public class TreeNode { public int val; public TreeNode left; public TreeNode right; public TreeNode (int x) { val = x; } }*/ class Solution { public List<List<int>> Print(TreeNode pRoot) { // write code here } }
/* function TreeNode(x) { this.val = x; this.left = null; this.right = null; } */ function Print(pRoot) { // write code here } module.exports = { Print : Print };
<?php /*class TreeNode{ var $val; var $left = NULL; var $right = NULL; function __construct($val){ $this->val = $val; } }*/ /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ function Print( $pRoot ) { // write code here }
/* function TreeNode(x) { this.val = x; this.left = null; this.right = null; } */ function Print(pRoot) { // write code here }
# -*- coding:utf-8 -*- # class TreeNode: # def __init__(self, x): # self.val = x # self.left = None # self.right = None class Solution: # 返回二维列表[[1,2],[4,5]] def Print(self, pRoot): # write code here
package main import . "nc_tools" /* * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */ /** * * @param pRoot TreeNode类 * @return int整型二维数组 */ func Print( pRoot *TreeNode ) [][]int { // write code here }
/** * struct TreeNode { * int val; * struct TreeNode *left; * struct TreeNode *right; * }; */ /** * * @param pRoot TreeNode类 * @return int整型二维数组 * @return int* returnSize 返回数组行数 * @return int** returnColumnSizes 返回数组列数 */ int** Print(struct TreeNode* pRoot, int* returnSize, int** returnColumnSizes ) { // write code here }
# class TreeNode # attr_accessor :val, :left, :right # def initialize(val, left = nil, right = nil) # @val, @left, @right = val, left, right # end # end # # 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 pRoot TreeNode类 # @return int整型二维数组 # class Solution def Print(pRoot) # write code here end end
/** * class TreeNode(var val: Int) { * var left: TreeNode = null * var right: TreeNode = null * } */ object Solution { /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ def Print(pRoot: TreeNode): Array[Array[Int]] = { // write code here } }
/** * class TreeNode(var `val`: Int) { * var left: TreeNode? = null * var right: TreeNode? = null * } */ object Solution { /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ fun Print(pRoot: TreeNode?): Array<IntArray> { // write code here } }
import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * public TreeNode(int val) { * this.val = val; * } * } */ public class Solution { /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ public int[][] Print (TreeNode pRoot) { // write code here } }
/*class TreeNode { * val: number * left: TreeNode | null * right: TreeNode | null * constructor(val?: number, left?: TreeNode | null, right?: TreeNode | null) { * this.val = (val===undefined ? 0 : val) * this.left = (left===undefined ? null : left) * this.right = (right===undefined ? null : right) * } * } */ /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ export function Print(pRoot: TreeNode): number[][] { // write code here }
/** * public class TreeNode { * public var val: Int * public var left: TreeNode? * public var right: TreeNode? * public init(_ val: Int=0, _ left: TreeNode?=nil, _ right: TreeNode?=nil) { * self.val = val * self.left = left * self.right = right * } */ public class Solution { /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ func Print ( _ pRoot: TreeNode?) -> [[Int]] { // write code here } }
/** * #[derive(PartialEq, Eq, Debug, Clone)] * pub struct TreeNode { * pub val: i32, * pub left: Option<Box<TreeNode>>, * pub right: Option<Box<TreeNode>>, * } * * impl TreeNode { * #[inline] * fn new(val: i32) -> Self { * TreeNode { * val: val, * left: None, * right: None, * } * } * } */ struct Solution{ } impl Solution { fn new() -> Self { Solution{} } /** * 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 pRoot TreeNode类 * @return int整型二维数组 */ pub fn Print(&self, pRoot: Option<Box<TreeNode>>) -> Vec<Vec<i32>> { // write code here } }
{8,6,10,5,7,9,11}
[[8],[6,10],[5,7,9,11]]