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原创杨辉三角之二

一、题目英文：Plus One 中文：杨辉三角之二二、内容要求英文：Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3, Return [1,3,3,1]. Note: Could you optimize your algorithm to use

2017-08-06 21:51:46 496

转载 java 键盘输入多种方法

一、Java不像C中拥有scanf这样功能强大的函数，大多是通过定义输入输出流对象。常用的类有BufferedReader，Scanner。实例程序： 1、利用 Scanner 实现从键盘读入integer或float 型数据 import java.io.*; import java.util.*; public class InputTest{ public stati

2017-08-06 18:12:56 536

原创 Java键盘输入方式总结

一、输入的要求是：从键盘的输入，由用户确定数组大小，并接受数组数据以及处理 1.示例比如输入：4 （表示输入的数组大小） 3 5 6 1 （具体输入的元素） 2.代码（1）.利用while循环输入 //利用while循环进行 public class Test { public static void main(Strin

2017-08-06 14:26:31 562

原创 Plus One【加一】【容易】

一、题目英文：Plus One 中文：加一二、内容要求英文：Given a non-negative integer represented as a non-empty array of digits, plus one to the integer. You may assume the integer do not contain any leading zero, ex

2017-08-06 12:58:42 695

原创 Guess Number Higher or Lower II

一、题目英文：Guess Number Higher or Lower II 中文：猜数字大小二、内容要求英文：We are playing the Guess Game. The game is as follows: I pick a number from 1 to n. You have to guess which number I picked. Every ti

2017-07-28 21:12:58 278

原创 Coin Change【硬币找零】

一、题目英文：Coin Change 中文：硬币找零二、内容要求英文：You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you need

2017-07-28 20:54:19 699

原创 Maximum Length of Pair Chain【双链的最大长度】

一、题目英文：Maximum Length of Pair Chain 中文：双链的最大长度二、内容要求英文： You are given n pairs of numbers. In every pair, the first number is always smaller than the second number. Now, we define a pa

2017-07-28 15:41:36 625

原创 Climbing Stairs【爬梯子问题】【容易】

一、题目英文：Climbing Stairs 中文：爬梯子二、内容要求英文： You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can yo

2017-07-28 15:03:09 490

原创 Best Time to Buy and Sell Stock 【最佳买卖股票的时间】【容易】

一、题目英文：Best Time to Buy and Sell Stock 中文：最佳买卖股票的时间二、内容要求英文： Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to comple

2017-07-28 14:03:22 471

原创 House Robber【打家劫舍】【容易】

一、题目英文：House Robber 中文：打家劫舍二、内容要求英文：You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping you f

2017-07-28 11:58:36 463

原创 Maximum Subarray【最大子串和问题】【容易】

一、题目英文：Maximum Subarray 中文：最大子串和二、内容要求英文：Find the contiguous subarray within an array (containing at least one number) which has the largest sum. 中文：在数组中找到子串（至少包含一个数字），使得和是最大的。三、示例例如

2017-07-28 09:50:14 389

原创 Range Sum Query - Immutable【数组指定区间内的元素和】

一、题目英文：Range Sum Query - Immutable 中文：数组指定区间内的元素和二、内容要求英文：Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. 中文：给定一个数组nums，求出索引i和j之间元素的

2017-07-27 23:30:19 411

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