Description:
Count the number of prime numbers less than a non-negative number, n.
基本思路:筛法
1, 2 为素数, 筛掉以2为因子的数。 即 2 * 2, 2*3, 2*4,2*5
2, 寻找到下一个未被筛除的数,如3. 再筛掉以3为因子的数。
3, 重复步骤2.
时间复杂度为O(n)
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其他好文 时间:
2015-07-12 15:42:46
阅读次数:
90
Use the strs[0] as the reference string and then compare it with the remaining strings from left to right. Once we find a string with length less than...
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其他好文 时间:
2015-07-12 15:26:17
阅读次数:
93
Number of Digit OneGiven an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to n.For example:Gi...
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编程语言 时间:
2015-07-09 00:24:37
阅读次数:
154
Given an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to n. For example: Given n = 13,Return...
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其他好文 时间:
2015-07-08 07:06:15
阅读次数:
122
Given a linked list and a valuex, partition it such that all nodes less thanxcome before nodes greater than or equal tox.You should preserve the origi...
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其他好文 时间:
2015-07-07 21:05:44
阅读次数:
118
题目描述
链接地址
解法题目描述Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x.You should preserve the original relative order of the nodes...
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其他好文 时间:
2015-07-07 00:55:14
阅读次数:
116
1、代码2、运行1、代码 1 package main 2 3 import "fmt" 4 5 type Integer int 6 //给in类型添加 Less 方法,int原来的方法被Integer继承 7 func (a Integer) Less (b Integer) bool {...
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编程语言 时间:
2015-07-06 23:14:12
阅读次数:
167
[ Talk is Cheap Show me the CODE ] : jQuery Mobile工具栏Written In The Font“ Wirte less Do more”学习内容:页眉工具栏和页眉button导航工具栏页脚工具栏定位工具栏页眉工具栏和页眉button页眉是网页身体的头...
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Web程序 时间:
2015-07-05 16:21:55
阅读次数:
243
IRQL_NOT_LESS_OR_EQUAL (a)An attempt was made to access a pageable (or completely invalid) address at aninterrupt request level (IRQL) that is too hig...
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其他好文 时间:
2015-07-05 12:21:46
阅读次数:
113
#includeusingnamespacestd;constintMAX=1e5+10;vectorfilter(constvector&vec,intval,less<){vectornvec;vector::const_iteratoriter=vec.begin();while((ite...
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编程语言 时间:
2015-07-04 15:19:29
阅读次数:
145