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oracle自定义判断数据是否为数值函数
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
【蓝桥杯竞赛】例题: 487-3279
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...
分类:其他好文   时间:2015-04-29 00:11:44    阅读次数:176
zoj Median (multiset)
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...
分类:其他好文   时间:2015-04-28 23:05:45    阅读次数:368
[LeetCode 204] Count Primes
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...
分类:其他好文   时间:2015-04-28 23:02:38    阅读次数:225
【数学】Count Primes
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 ...
分类:其他好文   时间:2015-04-28 23:01:22    阅读次数:287
LeetCode(9)Palindrome Number
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...
分类:其他好文   时间:2015-04-28 22:53:01    阅读次数:177
leetcode 204题求素数个数
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:   ...
分类:其他好文   时间:2015-04-28 22:49:39    阅读次数:238
Java 素数 prime numbers-LeetCode 204
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
Count Primes
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...
分类:其他好文   时间:2015-04-28 22:39:09    阅读次数:164
LeetCode 之 TwoSum
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
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