12. Pattern: Top ‘K’ Elements,前K个系列 任何让我们求解最大/最小/最频繁的K个元素的题,都遵循这种模式。 用来记录这种前K类型的最佳数据结构就是堆了(译者注:在Java中,改了个名,叫优先队列(PriorityQueue))。这种模式借助堆来解决很多这种前K个数值的问题。 这个模式是这样的: 根据题目要求,将K个元素...
这个列表中有78道题目,是leetcode上top interview questions中的。原本是有145道题目,但是部分题目和top 100 liked questions是重复的(见另一篇文章), 因此这里就只保留了和top 100列表中不同的题目。 7 Reverse Integer 25.20% Easy 8 String to Integer (atoi) 14.50% Medium 13 Roman to Integer 51.70% Eas...
LeetCode Top Interview Questions 138. Copy List with Random Pointer (Java版; Medium) 题目描述 A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return a deep copy of the list. 1. 2. 3. Input: {"$id"...
if(matrix.length==0 || matrix[0].length==0){ return list; } int n = matrix.length, m = matrix[0].length; int top=0, down=n-1, left=0, right=m-1; while(top<=down && left<=right){ //left to right for(int j=left; j<=right; j++){ list.add(matrix[top][j]); } t...
LeetCode Top Interview Questions LeetCode Top Interview Questions https://leetcode.com/problemset/top-interview-questions/
Top 15 Linked List Interview Questions and Solutions 前15 名链表面试问题及解决方案 Without any furtherado, here is a list of Leetcode problems you can solve to get better at linked list: 闲话少说,这里列出了您可以解决的 Leetcode 问题,以便更好地使用链表: ...
先刷两个Top专题。Leetcode 上有个List选项,里边有两个专题,分别是Top 100 Liked Questions和Top Interview Questions。这两个List中有很多重复的题,加起来一共150道左右。都是经典的题目,将这150道刷完基本上所有的题型都见过了,而且多数经典题目都会涉及,是提升最快的一个方法。 注意记录、总结与复习。自己写过...
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For more Inheritance Interview Questions for best practice, go to this tutorial: Top 50 Java Inheritance Interview Questions and Answers for Freshers and experienced Can a derived class be referenced for a base class object? Ans: No. If School is a superclass and Student i...