leetcode validBST 算法:通过递归并限定上下限元素的值的范围可以计算 package com.bupt.acm.leetcode;publicclassValidBinary {privateclassTreeNode{intval; TreeNode left; TreeNode right; TreeNode(intx){ val=x; } }publicboolean isValidBST(TreeNode root){if(root==null){returntrue; }returnvalidBST(r...
0530-Minimum-Absolute-Difference-in-BST 0541-Reverse-String-II 0542-01-Matrix 0557-Reverse-Words-in-a-String-III 0559-Maximum-Depth-of-N-ary-Tree 0561-Array-Partition-I 0563-Binary-Tree-Tilt 0572-Subtree-of-Another-Tree 0583-Delete-Operation-for-Two-Strings 0589-N-ary-T...
0530-Minimum-Absolute-Difference-in-BST 0541-Reverse-String-II 0542-01-Matrix 0557-Reverse-Words-in-a-String-III 0559-Maximum-Depth-of-N-ary-Tree 0561-Array-Partition-I 0563-Binary-Tree-Tilt 0572-Subtree-of-Another-Tree 0583-Delete-Operation-for-Two-Strings 0589-N-ary-Tree-...