ALXPCUN

2015年6月1日

摘要： Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 6587Accepted: 4687DescriptionThe nth Triangular number, T(n) = 1 + … + n, is the sum of the f... 阅读全文

posted @ 2015-06-01 08:58 ALXPCUN 阅读(134) 评论(0) 推荐(0) 编辑

POJ 2562 Primary Arithmetic

摘要： Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 10724Accepted: 3980DescriptionChildren are taught to add multi-digit numbers from right-to-le... 阅读全文

posted @ 2015-06-01 08:46 ALXPCUN 阅读(145) 评论(0) 推荐(0) 编辑

2015年5月30日

POJ 3974 Palindrome

摘要： Time Limit: 15000MSMemory Limit: 65536KTotal Submissions: 5268Accepted: 1896DescriptionAndy the smart computer science student was attending an algori... 阅读全文

posted @ 2015-05-30 09:54 ALXPCUN 阅读(123) 评论(0) 推荐(0) 编辑

2015年5月28日

【转】跨越千年的RSA算法

摘要：跨越千年的RSA算法【转】http://www.matrix67.com/blog/archives/5100数论，数学中的皇冠，最纯粹的数学。早在古希腊时代，人们就开始痴迷地研究数字，沉浸于这个几乎没有任何实用价值的思维游戏中。直到计算机诞生之后，几千年来的数论研究成果突然有了实际的应用，这个过... 阅读全文

posted @ 2015-05-28 14:10 ALXPCUN 阅读(203) 评论(0) 推荐(0) 编辑

【转】位运算

摘要：【转】http://blog.chinaunix.net/uid-21411227-id-1826986.html一．逻辑运算符 1.& 位与运算 1) 运算规则位与运算的实质是将参与运算的两个数据，按对应的二进制数逐位进行逻辑与运算。例如：int型常量4和7进行位与运算的运算过程如下：4=0... 阅读全文

posted @ 2015-05-28 11:54 ALXPCUN 阅读(176) 评论(0) 推荐(0) 编辑

POJ 2028 When Can We Meet?

摘要： Time Limit: 1000MSMemory Limit: 30000KTotal Submissions: 5158Accepted: 2844DescriptionThe ICPC committee would like to have its meeting as soon as pos... 阅读全文

posted @ 2015-05-28 11:41 ALXPCUN 阅读(115) 评论(0) 推荐(0) 编辑

POJ 2389 Bull Math

摘要： Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 13500Accepted: 6968DescriptionBulls are so much better at math than the cows. They can multip... 阅读全文

posted @ 2015-05-28 11:22 ALXPCUN 阅读(112) 评论(0) 推荐(0) 编辑

POJ 2909 Goldbach's Conjecture

摘要： Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 10333Accepted: 6118DescriptionFor any even number n greater than or equal to 4, there exists ... 阅读全文

posted @ 2015-05-28 11:02 ALXPCUN 阅读(142) 评论(0) 推荐(0) 编辑

POJ 2388 Who's in the Middle

摘要： Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 33998Accepted: 19786DescriptionFJ is surveying his herd to find the most average cow. He want... 阅读全文

posted @ 2015-05-28 10:18 ALXPCUN 阅读(115) 评论(0) 推荐(0) 编辑

POJ 2328 Guessing Game

摘要： Time Limit: 1000MSMemory Limit: 65536KTotal Submissions: 14681Accepted: 5153DescriptionStan and Ollie are playing a guessing game. Stan thinks of a nu... 阅读全文

posted @ 2015-05-28 10:13 ALXPCUN 阅读(211) 评论(0) 推荐(0) 编辑

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