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leetcode 204/187/205 Count Primes/Repeated DNA Sequences/Isomorphic Strings
一:leetcode 204 Count Primes 题目: Description: Count the number of prime numbers less than a non-negative number, n 分析:此题的算法源码可以参看这里,http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes 代码: cl...
分类:其他好文   时间:2015-05-06 15:06:39    阅读次数:162
Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2015-05-06 14:44:07    阅读次数:105
Count Primes
Count Primes问题:Count the number of prime numbers less than a non-negative number,n思路: 计算质数的方法:http://en.wikipedia.org/wiki/Prime_number我的代码:public cl....
分类:其他好文   时间:2015-05-06 12:48:30    阅读次数:117
Count Primes
https://leetcode.com/problems/count-primes/Description:Count the number of prime numbers less than a non-negative number,nclick to show more hints.Cre...
分类:其他好文   时间:2015-05-05 21:10:44    阅读次数:103
LeetCode 2 Add Two Numbers
Problem: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and retur...
分类:其他好文   时间:2015-05-05 19:36:52    阅读次数:139
[leetcode] Count Primes
Count PrimesDescription:Count the number of prime numbers less than a non-negative number,nclick to show more hints.References:How Many Primes Are The...
分类:其他好文   时间:2015-05-04 21:41:10    阅读次数:112
[LeetCode]Count Primes
Count the number of prime numbers less than a non-negative number, n 一个合数总是可以分解成若干质数的乘积。所以,如果把质数的倍数全都去掉,剩下的就是质数了。 要查找n以内的质数,首先2是质数,把2的倍数:4,6,8…去掉;此时3没有被去掉,可以认为是质数,再被3的倍数去掉;然后再到5,再到7,一直到sqrt(n)。设一个布尔类型...
分类:其他好文   时间:2015-05-04 20:15:50    阅读次数:121
Java 特定规则排序-LeetCode 179 Largest Number
Given a list of non negative integers, arrange them such that they form the largest number.For example, given[3, 30, 34, 5, 9], the largest formed num...
分类:编程语言   时间:2015-05-03 13:19:22    阅读次数:181
Add Two Numbers
https://leetcode.com/problems/add-two-numbers/You are given two linked lists representing two non-negative numbers. The digits are stored in reverse o...
分类:其他好文   时间:2015-05-03 11:48:50    阅读次数:122
Count Primes
Description: Count the number of prime numbers less than a non-negative number, n References: How Many Primes Are There? Sieve of Eratosthenes 题意很简单,求n以内的素数的个数 注意:不包括n 如果注意到refe...
分类:其他好文   时间:2015-05-03 10:41:12    阅读次数:112
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