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목록알고리즘/Tree (8)
매일 조금씩
Leet code (Easy): 226. Invert Binary Tree - Java
/** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode() {} * TreeNode(int val) { this.val = val; } * TreeNode(int val, TreeNode left, TreeNode right) { * this.val = val; * this.left = left; * this.right = right; * } * } */class Solution { public TreeNode invertTree(TreeNod..
Leet code (Easy): 100. Same Tree - Java
같은 트리인지를 판별하는 아주 기본적인 문제이다. /** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode() {} * TreeNode(int val) { this.val = val; } * TreeNode(int val, TreeNode left, TreeNode right) { * this.val = val; * this.left = left; * this.right = right; * } * } */class Solution { public..