玛格汉程序猿

507. Perfect Number

摘要： 1 public class PerfectNumber { 2 /** 3 * 507. Perfect Number 4 * Easy 5 * 6 * We define the Perfect Number is a positive integer that is equal to the sum of all its posi... 阅读全文

posted @ 2019-08-14 14:36 玛格汉程序猿阅读(168) 评论(0) 推荐(0)

77. Combinations

摘要： 1 import java.util.ArrayList; 2 import java.util.List; 3 4 public class Combinations { 5 /** 6 * 77. Combinations 7 * Medium 8 * Given two integers n and k, return all pos... 阅读全文

posted @ 2019-08-14 14:34 玛格汉程序猿阅读(178) 评论(0) 推荐(0)

129. Sum Root to Leaf Numbers

摘要： 1 public class SumRoot2LeafNumbers { 2 /** 3 * 129. Sum Root to Leaf Numbers 4 * Medium 5 * 6 * Given a binary tree containing digits from 0-9 only, each root-to-leaf pa... 阅读全文

posted @ 2019-08-14 14:33 玛格汉程序猿阅读(137) 评论(0) 推荐(0)

摘要： 1 import java.util.ArrayList; 2 import java.util.List; 3 4 public class Permutations { 5 /** 6 * 46. Permutations 7 * Medium 8 * 9 * Given a collection of distinct integers, return all possible permut 阅读全文

posted @ 2019-08-09 19:15 玛格汉程序猿阅读(126) 评论(0) 推荐(0)

857. Minimum Cost to Hire K Workers

摘要： import java.util.Arrays; import java.util.PriorityQueue; public class MinimumCost2HireKWorkers { /** * 857. Minimum Cost to Hire K Workers * Hard * * There are N workers. The i-th worker has a quality 阅读全文

posted @ 2019-08-09 19:14 玛格汉程序猿阅读(139) 评论(0) 推荐(0)

Spring配置Druid详细说明

摘要： **简单直接，上代码，开封即食** ***yml文件内容配置*** ***DruidConfig文件*** ***DruidProperties文件*** 阅读全文

posted @ 2019-08-09 18:20 玛格汉程序猿阅读(3864) 评论(0) 推荐(0)

649. Dota2 Senate

摘要： 1 import java.util.LinkedList; 2 import java.util.Queue; 3 4 public class Dota2Senate { 5 /** 6 * 649. Dota2 Senate 7 * Medium 8 * <p> 9 * In the world of Dota2, there are two parties: the Radiant and 阅读全文

posted @ 2019-08-09 17:46 玛格汉程序猿阅读(189) 评论(0) 推荐(0)

787. Cheapest Flights Within K Stops

摘要： 1 import java.util.*; 2 3 public class CheapestFlightsWithinKStops { 4 /** 5 * 787. Cheapest Flights Within K Stops 6 * Medium 7 * <p> 8 * There are n cities connected by m flights. Each fight starts 阅读全文

posted @ 2019-08-09 17:45 玛格汉程序猿阅读(161) 评论(0) 推荐(0)

728. Self Dividing Numbers

摘要： 1 import java.util.ArrayList; 2 import java.util.List; 3 4 public class SelfDividingNumbers { 5 /** 6 * 728. Self Dividing Numbers 7 * Easy 8 * 9 * A self-dividing ... 阅读全文

posted @ 2019-08-06 14:22 玛格汉程序猿阅读(135) 评论(0) 推荐(0)

45. Jump Game II

摘要： 1 public class JumpGame2 { 2 /** 3 * 45. Jump Game II 4 * Hard 5 * Given an array of non-negative integers, you are initially positioned at the first index of the array. 6 ... 阅读全文

posted @ 2019-08-06 11:39 玛格汉程序猿阅读(134) 评论(0) 推荐(0)