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Euler_problem_18 for python
如下所示 给出2个解法 def euler_problem_18_1():     """     this problem spend my half-day but noting to finished ,so bad     """     rows = '''     3     7 4     2 4 6     100 5 9 3     '''     ...
分类:编程语言   时间:2014-06-07 01:28:18    阅读次数:261
projecteuler---->problem=5----Smallest multiple n个数求最小公倍数
title: 2520 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 divisible by all of the nu...
分类:其他好文   时间:2014-06-07 01:27:37    阅读次数:229
projecteuler---->problem=4----Largest palindrome product
title: Largest palindrome product Problem 4 A 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 l...
分类:其他好文   时间:2014-06-07 01:24:27    阅读次数:398
projecteuler---->problem=7----10001st prime
title: By 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? 翻译: 通过列出前6个质数,我们可知第6个质数是13。 那么第10001个质数是...
分类:其他好文   时间:2014-06-05 12:28:28    阅读次数:277
projecteuler---->problem=6----Sum square difference
title: The sum of the squares of the first ten natural numbers is, 12 + 22 + ... + 102 = 385 The square of the sum of the first ten natural numbers is, (1 + 2 + ... + 10)2 = 552 = 3025 Hence ...
分类:其他好文   时间:2014-06-05 12:03:29    阅读次数:243
杭电 1230 火星A+B
火星A+B Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10279    Accepted Submission(s): 3402 Problem Description 读入两个不超过25位的火星正整数A和B,计算A...
分类:其他好文   时间:2014-06-05 11:13:45    阅读次数:241
hdu 1016 Prime Ring Problem (dfs)
一切见注释。 #include #include #include #include using namespace std; bool vis[22]; int n; int ans[22]; int top; bool isprime(int x)//判断素数 { for(int i=2;i<x;i++) if(x%i==0)return false; ...
分类:其他好文   时间:2014-06-05 08:26:47    阅读次数:201
HDU 3972 1 M possible(思维)
1 M possible Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 2048/1024 K (Java/Others) Total Submission(s): 1031    Accepted Submission(s): 343 Problem Description There are 3*N+2...
分类:其他好文   时间:2014-06-05 07:50:19    阅读次数:259
2014百度之星初赛(第二场)——Best Financing
2014百度之星初赛(第二场)——Best Financing Problem Description 小A想通过合理投资银行理财产品达到收益最大化。已知小A在未来一段时间中的收入情况,描述为两个长度为n的整数数组dates和earnings,表示在第dates[i]天小A收入earnings[i]元(0 限制条件: 1 1 对于任意i(0 对于任意i(0   ...
分类:其他好文   时间:2014-06-05 07:49:41    阅读次数:164
hdu 2647 Reward
Reward Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3554    Accepted Submission(s): 1077 Problem Description Dandelion's uncle i...
分类:其他好文   时间:2014-06-05 05:59:34    阅读次数:203
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