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...
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其他好文 时间：
2014-06-07 01:27:37
阅读次数：
229
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...
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其他好文 时间：
2014-06-07 01:24:27
阅读次数：
398
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...
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其他好文 时间：
2014-06-05 12:28:28
阅读次数：
277
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 ...
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其他好文 时间：
2014-06-05 12:03:29
阅读次数：
243
题目描述On the planet Zoop, numbers are represented in
base 62, using the digits 0, 1, . . . , 9, A, B, . . . , Z, a, b, . . . , z
where A (base 62) = 10 ...
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其他好文 时间：
2014-06-03 12:32:55
阅读次数：
267
Terrible SetsTime Limit:1000MSMemory
Limit:30000KTotal Submissions:3017Accepted:1561DescriptionLet N be the set of
all natural numbers {0 , 1 , 2 , . ...
分类：
其他好文 时间：
2014-05-31 22:01:28
阅读次数：
325
题目：A 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 exactl.....
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其他好文 时间：
2014-05-31 01:23:03
阅读次数：
254
find k missing numbers from 1 to n. (k>=1)
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其他好文 时间：
2014-05-30 21:41:26
阅读次数：
593
Given an unsorted array of integers, find the
length of the longest consecutive elements sequence.For example,Given[100, 4,
200, 1, 3, 2],The longest ...
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其他好文 时间：
2014-05-30 16:20:32
阅读次数：
229
Given a triangle, find the minimum path sum
from top to bottom. Each step you may move to adjacent numbers on the row
below.For example, given the fol...
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其他好文 时间：
2014-05-30 14:59:37
阅读次数：
241
