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
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;
...
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其他好文 时间:
2014-06-05 08:26:47
阅读次数:
201
Oracle sqlplus报表的实现
备份数据库
非归档 :要关闭数据库
归档:
Oracle中只有date,没有datatime
sys/sorry as sysdba sys系统管理员,权限最大
show user查看当前登录数据库的用户
1.安装选择host-ONLY...
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数据库 时间:
2014-06-05 06:20:26
阅读次数:
330
Given a binary tree, determine if it is a valid
binary search tree (BST).Assume a BST is defined as follows:The left subtree of
a node contains only n...
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其他好文 时间:
2014-06-03 14:00:56
阅读次数:
281
Hibernate provides SQL logging out of the box,
but such logging only shows prepared statements, and not the actual SQL queries
sent to the database.It...
分类:
数据库 时间:
2014-05-31 16:47:16
阅读次数:
514
You have decided to start up a new social
networking company. Other existing popular social networksalready have billions
of users, so the only way to...
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其他好文 时间:
2014-05-31 04:34:45
阅读次数:
275
DescriptionYou have an
arraya[1],?a[2],?...,?a[n], containing distinct integers from1ton. Your task is
to sort this array in increasing order with the...
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其他好文 时间:
2014-05-31 01:35:23
阅读次数:
318
这是我目前知道的打素数表最快的方法了…………
差不多是O(n)的,100000以内花了0.005秒。 1 int prime[100005], np, vis[100005]; 2 3 void
get_prime(int n){ 4 mset(prime); mset(vis); 5 ...
分类:
其他好文 时间:
2014-05-30 23:26:36
阅读次数:
204
Say you have an array for which theithelement
is the price of a given stock on dayi.If you were only permitted to complete at
most one transaction (ie...
分类:
其他好文 时间:
2014-05-30 16:30:00
阅读次数:
282
Given a string, determine if it is a
palindrome, considering only alphanumeric characters and ignoring cases.For
example,"A man, a plan, a canal: Pana...
分类:
其他好文 时间:
2014-05-30 16:24:31
阅读次数:
222