w Graph and its representations - GeeksforGeekshttp://www.geeksforgeeks.org/graph-and-its-representations/ // A C Program to demonstrate adjacency list representation of graphs #include <stdio.h> #include <stdlib.h> // A structure to represent…

刷题备忘录,for bug-free leetcode 396. Rotate Function 题意: Given an array of integers A and let n to be its length. Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a "rotation function" F on A as follow: F(k…

刷题备忘录,for bug-free 招行面试题--求无序数组最长连续序列的长度,这里连续指的是值连续--间隔为1,并不是数值的位置连续 问题: 给出一个未排序的整数数组,找出最长的连续元素序列的长度. 如: 给出[100, 4, 200, 1, 3, 2], 最长的连续元素序列是[1, 2, 3, 4].返回它的长度:4. 你的算法必须有O(n)的时间复杂度 . 解法: 初始思路 要找连续的元素,第一反应一般是先把数组排序.但悲剧的是题目中明确要求了O(n)的时间复杂度,要做一次排序,是不能达…

Graph There are two standard ways to represent a graph G=(V,E)G=(V,E), where VV is a set of vertices and EE is a set of edges; Adjacency list representation and Adjacency matrix representation. An adjacency-list representation consists of an array Ad…

wait, notify 和 notifyAll,这些在多线程中被经常用到的保留关键字,在实际开发的时候很多时候却并没有被大家重视.本文对这些关键字的使用进行了描述. 在 Java 中可以用 wait.notify 和 notifyAll 来实现线程间的通信..举个例子,如果你的Java程序中有两个线程--即生产者和消费者,那么生产者可以通知消费者,让消费者开始消耗数据,因为队列缓 冲区中有内容待消费(不为空).相应的,消费者可以通知生产者可以开始生成更多的数据,因为当它消耗掉某些数据后缓冲区不…

Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the number and for the multiples of five output “Buzz”. For numbers which are multiples of both three and fiv…

一直直到bug-free.不能错任何一点. 思路不清晰:刷两天. 做错了,刷一天. 直到bug-free.高亮,标红. 185,OA(YAMAXUN)--- (1) findFirstDuplicate string in a list of string. import java.util.HashSet; import java.util.Set; public class Solution { public static void main(String[] args) { String[…

Problem: Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output "Fizz" instead of the number and for the multiples of five output "Buzz". For numbers which are multipl…

412. Fizz Buzz Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output "Fizz" instead of the number and for the multiples of five output "Buzz". For numbers which are m…

原题链接在这里:https://leetcode.com/problems/fizz-buzz/ 题目: Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output "Fizz" instead of the number and for the multiples of five output &qu…