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原创 【Project Euler】【Problem 10】Summation of primes
Summation of primesProblem 10The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.Find the sum of all the primes below two million.Answer:142913828922
2013-03-27 18:57:16
656
原创 【Project Euler】【Problem 9】Special Pythagorean triplet
Special Pythagorean tripletProblem 9A Pythagorean triplet is a set of three natural numbers, a b c, for which,a2 + b2 = c2For example, 32 + 42 = 9 + 16 = 25 = 52.There exists exa
2013-03-27 18:50:58
667
原创 【Project Euler】【Problem 8】Largest product in a series
Largest product in a seriesProblem 8Find the greatest product of five consecutive digits in the 1000-digit number.7316717653133062491922511967442657474235534919493496983520312774506326
2013-03-27 18:40:35
1177
原创 【Project Euler】【Problem 7】10001st prime
10001st primeProblem 7By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.What is the 10 001st prime number?Answ
2013-03-27 18:31:26
683
原创 【Project Euler】【Problem 6】Sum square difference
Sum square differenceProblem 6The sum of the squares of the first ten natural numbers is,12 + 22 + ... + 102 = 385The square of the sum of the first ten natural numbers is,(1 + 2 + .
2013-03-27 18:26:51
668
原创 【Project Euler】【Problem 5】Smallest multiple
Smallest multipleProblem 52520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.What is the smallest positive number that is evenly di
2013-03-26 19:55:50
686
原创 【Project Euler】【Problem 4】Largest palindrome product
Largest palindrome productProblem 4A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 99.Find the largest pal
2013-03-26 19:41:59
634
原创 【Project Euler】【Problem 3】Largest prime factor
Largest prime factorProblem 3The prime factors of 13195 are 5, 7, 13 and 29.What is the largest prime factor of the number 600851475143 ?Answer:6857
2013-03-26 19:34:11
666
原创 【Project Euler】【Problem 2】Even Fibonacci numbers
Even Fibonacci numbersProblem 2Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:1, 2, 3, 5, 8,
2013-03-26 18:48:41
581
原创 【Project Euler】【Problem 1】Multiples of 3 and 5
Multiples of 3 and 5Problem 1If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.Find the sum of all the mult
2013-03-26 18:31:56
765
原创 Java知识思维导图
做了4年的j2se开发,觉得自己Java技术应该掌握的不错了,对Java的理解到了某个瓶颈了;一直在考虑着是不是要再深入学习另一面语言?对比起来才能有更深的理解?但是潜意识里又一直在提醒自己,这是浮躁,Java一门语言就够我玩很久了;一门语言没学明白就去学另一门,不够专注,最后会得不偿失的。最后决定,把Java手册从头到尾细细的整理一遍,以确定自己Java究竟学到什么程度了。Jav
2012-07-12 14:37:58
4022
原创 用Java山寨一款Flash游戏
原游戏地址:http://wanga.me/7279。。原游戏是用Flash做的 很早以前做了大概的功能。。前几天整理代码时发现。。就给做完整了。。。加了个关卡编辑器。。等我做好关卡编辑器后发现。。做一个关比完通一关难了无数倍。。。就想写个随即生成关卡的算法。。结果算了两个晚上。。蛋都算碎了。。算不出来 - -。。。诶。。把第一版的算法放在源码中了。。第一版算法是最低级的穷举法。。
2012-05-22 16:33:01
912
用Java山寨一款Flash游戏
原游戏地址:http://wanga.me/7279。。原游戏是用Flash做的 很早以前做了大概的功能。。前几天整理代码时发现。。就给做完整了。。。加了个关卡编辑器。。等我做好关卡编辑器后发现。。做一个关比完通一关难了无数倍。。。就想写个随即生成关卡的算法。。结果算了两个晚上。。蛋都算碎了。。算不出来 - -。。。诶。。把第一版的算法放在源码中了。。第一版算法是最低级的穷举法。。。地图大...
2012-05-19 22:39:13
195
山寨QQ游戏。。第一步。。登入界面。。
画了一个礼拜的晚上。。。就画出来一个登入界面。。。上图。。。画的挺像。。。 这个是游戏主界面目前进展 十一继续画。。。希望能完成。。时间太忙了。。。十一后打算换工作。。。还要花时间准备。。。 代码现在先不拿出来了。。。太丑。。。而且现在对整体的架构还在推敲中。。。...
2010-09-25 14:27:26
136
原创 Eclipse扩展点查询--Help Eclipse SDK英文原文(留个点以后好找)
http://help.eclipse.org/help32/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/extension-points/org_eclipse_ui_decorators.html
2009-12-26 19:09:52
125
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