Euler discovered the remarkable quadratic formula:
n² + n + 41
It turns out that the formula will produce 40 primes for the consecutive values n = 0 to 39. However, when n = 40, 402 + 40 + 41 = 40...
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其他好文 时间：
2014-08-20 16:21:12
阅读次数：
244
Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not possibl...
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其他好文 时间：
2014-08-20 14:06:22
阅读次数：
163
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：
2014-08-20 14:01:12
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184
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
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其他好文 时间：
2014-08-20 11:57:22
阅读次数：
198
Description
FJ and his cows enjoy playing a mental game. They write down the numbers from 1 to N (1 <= N <= 10) in a certain order and then sum adjacent numbers to produce a new list with one fewer...
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其他好文 时间：
2014-08-20 10:33:36
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256
今晚再刷一题，题目如下：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices o...
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其他好文 时间：
2014-08-20 01:20:15
阅读次数：
197
Description
A palindrome is a word, number, or phrase that reads the same forwards as backwards. For example, the name "anna" is a palindrome. Numbers can also be palindromes (e.g.
151 or 753357)....
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其他好文 时间：
2014-08-19 12:57:34
阅读次数：
189
Given a collection of numbers, return all possible subclasses. 1 public class Solution { 2 public List> permute(int[] num) { 3 ArrayList...
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其他好文 时间：
2014-08-19 09:22:03
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198
Selection:selection is a trivial problem if the input numbers are sorted. If we use a sorting algorithm having O(nlgn) worst case running time, then t...
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其他好文 时间：
2014-08-19 04:50:43
阅读次数：
200
Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not possibl...
分类：
其他好文 时间：
2014-08-19 00:57:53
阅读次数：
213
