linkedin_36149442的博客

//Coding question: compare two binary trees and find if tree B is a part of tree A.Class TreeNode{ int val; TreeNode left, right; TreeNode(int val){ this.val = val this.le

class Solution { public static void main(String[] args) { int result = findIndex("robrorobe", "robe"); System.out.println(result); } public static int findIndex(String a, String needle){