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RSS订阅原创 回形打印二维数组，要求不在内存中开辟二维数组——腾讯二面
该题为腾讯mxg面试委员会二面试题，要求如下：逐行打印n * n回型矩阵（ 不可以在内存填好整个矩阵然后再打印）n=31 2 38 9 47 6 5n=41 2 3 412 13 14 511 16 15 610 9 8 7不在内存中开辟二维数组，则应该寻找(i, j)与num的关系，达到O(1)计算(i, j)上应该填充的num将二维数组看成一层一层...
2019-09-05 11:32:45
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原创 位操作实现加减乘除和幂运算
位操作实现加减乘除和幂运算位操作在一定程度上加快了计算的速度，上本科的时候实现过位运算的各种运算，时间长了已经忘光了，拿出来重新实现实现。 位操作回顾与(&)：同真为真，其余为假 0&0=0、0&1=0、1&0=0、1&1=1或(|)：有真为真，无真为假0|0=0、0|1=1、1|0=1、1|1=1非(~)：真变假，假变真~0=1、~...
2018-08-28 22:07:43
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原创 hdu 1022 Train Problem I（简单模拟+栈）
Train Problem ITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 32596 Accepted Submission(s): 12290Problem DescriptionAs the new t
2016-10-26 16:24:27
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原创 关于DNA 碱基序列检验的JAVA代码
This assignment focuses on arrays and file/text processing. Turn in a file named DNA.java. You will also need the two input files dna.txt and ecoli.txt from the course web site. Save these files in
2016-03-11 21:20:33
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原创 VS下的数据库更删改
数据库操作在现实应用中还是很重要的，掌握最基本的更删改也是有必要的，这里介绍一些类来使用。SqlConnection 实例化的对象用于连接数据库。连接语句有很多，网上也能够找到很多。Data Source=@Serverip;Initial Catalog=@catalog;Integrated Security=true;是比较简单的连接语句SqlDataAdapter 数据
2015-12-30 15:36:32
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原创 Ponds（图论胡搞）
PondsTime Limit: 1500/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 3851 Accepted Submission(s): 582点击打开链接Problem DescriptionBetty owns a
2015-09-14 20:03:49
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原创 The Water Problem（RMQ）
The Water ProblemTime Limit: 1500/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1634 Accepted Submission(s): 1245点击打开链接Problem D
2015-09-14 19:43:40
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原创 hdu 3183 A Magic Lamp(贪心,RMQ)
A Magic LampTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2361 Accepted Submission(s): 938点击打开链接Problem DescriptionKiki
2015-08-25 11:17:53
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转载 求Pell方程解
#include #include #include using namespace std;struct PellAns{ int p,q;};struct Node{ int g,h;};PellAns Solve(int n){ PellAns s[4]; Node w[4]; int a[4]; s[0].p=
2015-08-24 12:04:03
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原创 hdu 5417 Victor and Machine(简单数学题)
Victor and MachineTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 232 Accepted Submission(s): 128点击打开链接Problem Descrip
2015-08-23 09:27:20
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转载 SPOJ 2832 DETER3 - Find The Determinant III(矩阵行列式)
DETER3 - Find The Determinant IIIno tags Given a NxN matrix A, find the Determinant of A % P. InputMultiple test cases (the size of input file is about 3MB, all numbers in each matri
2015-08-22 11:11:25
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原创 hdu 5402 Travelling Salesman Problem(构造+模拟)
Travelling Salesman ProblemTime Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 872 Accepted Submission(s): 316Special Judge点击打开链接Pr
2015-08-21 15:27:21
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原创 hdu 1269 迷宫城堡(搜索tarjin)
迷宫城堡Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9906 Accepted Submission(s): 4444点击打开链接Problem Description为了训练小希的方向感，Gardon建立了一座大城堡，里
2015-08-19 09:40:43
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原创 链式前向星
图的存储常见的就两种：邻接表和邻接矩阵。链式前向星是介于两者之间的一种图的存储方式。重点在于引入了一个 head[ ] 数组，利用 head[ ] 数组抽象的构造出了邻接表的一种存储方式。head[u]存储的是最后一条存入u节点的边的序号，之所以是最后一条边是因为在构造的过程中不断的将上一轮称之为最后一条边的序号转移，新来边的序号去覆盖head[u]。这种方法有点像邻接表的
2015-08-18 10:39:32
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原创 hdu 1268 积木堆砌的城堡（贪心）
积木堆砌的城堡Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 355 Accepted Submission(s): 75Problem Description一天，小希用积木搭了个城堡，并且照了正面和侧面的照片（前视图和
2015-08-17 15:29:52
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原创 简易动态验证码生成
许多登陆界面有输入动态验证码，所以学习了下怎么写。using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Thre
2015-08-12 18:26:33
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原创 hdu 3665 Seaside(最短路)
SeasideTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1253 Accepted Submission(s): 915Problem DescriptionXiaoY is living in a big
2015-08-12 08:54:47
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原创 hdu 1010 Tempter of the Bone(搜索+奇偶剪枝)
Tempter of the BoneTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 90187 Accepted Submission(s): 24509Problem DescriptionThe doggie f
2015-08-11 21:56:09
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原创 hdu 1428 漫步校园（记忆化搜索+宽搜最短路）
漫步校园Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3452 Accepted Submission(s): 1045Problem DescriptionLL最近沉迷于AC不能自拔
2015-08-11 13:42:05
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