Just DO IT by luckygxf

摘要： Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu... 阅读全文

摘要： 来源：http://www.cnblogs.com/devinzhang/archive/2012/01/13/2321481.html1. HashMap1) hashmap的数据结构 Hashmap是一个数组和链表的结合体（在数据结构称“链表散列“），如下图示： 当我们往hashmap中pu... 阅读全文

摘要： Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line. 1 import java.util.HashMap; 2 import java.util.Itera... 阅读全文

摘要： 1 public class TestFloatOrDouble { 2 3 public static void main(String[] args) { 4 Point num1 = new Point(84, 250); 5 Point num2 ... 阅读全文

摘要： Givens1,s2,s3, find whethers3is formed by the interleaving ofs1ands2.For example,Given:s1="aabcc",s2="dbbca",Whens3="aadbbcbcac", return true.Whens3="... 阅读全文

摘要： Given a set ofnon-overlappingintervals, insert a new interval into the intervals (merge if necessary).You may assume that the intervals were initially... 阅读全文

摘要： Given a collection of intervals, merge all overlapping intervals.For example,Given[1,3],[2,6],[8,10],[15,18],return[1,6],[8,10],[15,18].思路先按照Interval.... 阅读全文

摘要： Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.Fo... 阅读全文

摘要： Given a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[3,2,1].这道... 阅读全文

摘要： Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example,Given[100, 4, 200, 1, 3, 2],The longest ... 阅读全文