1 CREATE OR REPLACE FUNCTION isnumeric (str IN VARCHAR2) 2 RETURN NUMBER 3 IS 4 v_str VARCHAR2 (1000); 5 BEGIN 6 IF str IS NULL 7 THE...
分类:
数据库 时间:
2015-04-29 00:16:01
阅读次数:
221
分析:str数组接受不规范的电话字符串,number数组储存标准化的电话号码,qsort(stdlib库函数)将number数组排序,通过检测排序后的number数组得知同一个号码的重复次数,compare函数用于qsort函数的实现(类似于实现接口)strandradStr函数用于是电话号码的标准...
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其他好文 时间:
2015-04-29 00:11:44
阅读次数:
176
Median
Time Limit: 5 Seconds
Memory Limit: 65536 KB
The median of m numbers is after sorting them in order, the middle one number of them if
m is even or the average number of the middl...
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其他好文 时间:
2015-04-28 23:05:45
阅读次数:
368
题目链接:count-primes
Description:
Count the number of prime numbers less than a non-negative number, n
public class Solution {
public int countPrimes(int n) {
if(n <= 2) return 0;
Lis...
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其他好文 时间:
2015-04-28 23:02:38
阅读次数:
225
题目:leetcode
Count Primes
Description:
Count the number of prime numbers less than a non-negative number, n
分析:
求出比n小的素数的个数,这个问题可以用排除法做,参考http://www.cnblogs.com/grandyang/p/4462810.html
...
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其他好文 时间:
2015-04-28 23:01:22
阅读次数:
287
题目:
Determine whether an integer is a palindrome. Do this without extra space.
Some hints:
Could negative integers be palindromes? (ie, -1)
If you are thinking of converting the integer to s...
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其他好文 时间:
2015-04-28 22:53:01
阅读次数:
177
Description:
Count the number of prime numbers less than a non-negative number, n
提示晒数法:
http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes
https://primes.utm.edu/howmany.html
别人的代码:
...
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其他好文 时间:
2015-04-28 22:49:39
阅读次数:
238
Description:Count the number of prime numbers less than a non-negative number,nclick to show more hints.Credits:Special thanks to@mithmattfor adding t...
分类:
编程语言 时间:
2015-04-28 22:41:35
阅读次数:
184
Description:Count the number of prime numbers less than a non-negative number,nReferences:How Many Primes Are There?Sieve of Eratosthenes由于一个合数总是可以分解成...
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其他好文 时间:
2015-04-28 22:39:09
阅读次数:
164
题目:Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two...
分类:
其他好文 时间:
2015-04-28 22:37:57
阅读次数:
252