在数据库操作中,经常有一些这样的操作:插入诺干条测试数据.查询这个月的登录情况(没有登录的日期不能不存在,要显示数量为0),获取诺干条guid. 这些的基础都是怎么生成连续的一串数字 1 2 3 4 ……………… 100000. 在oracle中,我们使用start with connect by connect by rownum <= 在sqlserver中,由于没有现成的语法,我们可以采用cte with test as ( rn union all rn )select rn
//求旋转数组的最小数字,输入一个递增排序的数组的一个旋转,输出其最小元素 #include <stdio.h> #include <string.h> int find_min(int arr[],int len) { int i = 0; for (i = 1; i < len; i++) { if (arr[i] < arr[0]) return arr[i]; } return arr[0]; } int main() { int i; int arr1[] =
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3367 Pseudoforest Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2870 Accepted Submission(s): 1126 Problem Description In graph theory, a pseu
ID Codes Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 6229 Accepted: 3737 Description It is 2084 and the year of Big Brother has finally arrived, albeit a century late. In order to exercise greater control over its citizens and ther
