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结息之后本年结转金额没有数据
先检查有没有数据select dqlx,hqlxfrom cpndjx where jxnd = '2014' and ocid = '101';如果有数据,把数据更新到CPYB的ndjxje中去select sum(dqlx)+sum(hqlx) from cpndjx where jxnd = ...
分类:其他好文   时间:2014-07-06 23:02:22    阅读次数:270
Python获取两个ip之间的所有ip
int_ip = lambda x: '.'.join([str(x/(256**i)%256) for i in range(3,-1,-1)])ip_int = lambda x:sum([256**j*int(i) for j,i in enumerate(x.split('.')[::-1]...
分类:编程语言   时间:2014-07-06 21:21:30    阅读次数:281
【题解】【数组】【DP】【Codility】MaxSliceSum & MaxDoubleSliceSum
Find a maximum sum of a compact subsequence of array elements and any double slice.
分类:其他好文   时间:2014-07-06 20:44:45    阅读次数:351
Leetcode Edit Distance
Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You have the fol...
分类:其他好文   时间:2014-07-06 19:31:04    阅读次数:181
【leetcode刷提笔记】Container With Most Water
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
分类:其他好文   时间:2014-07-06 17:44:30    阅读次数:181
Leetcode Divide Two Integers
Divide two integers without using multiplication, division and mod operator.不用乘、除、求余操作,返回两整数相除的结果,结果也是整数。假设除数是2,相除的商就是被除数二进制表示向右移动一位。假设被除数是a,除数是b,因为不知...
分类:其他好文   时间:2014-07-05 20:37:18    阅读次数:193
Divide Two Integers
Divide Two Integers
分类:其他好文   时间:2014-07-05 17:05:55    阅读次数:229
Gray Code
The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total number of bits in the code, print the sequence of...
分类:其他好文   时间:2014-07-04 07:35:58    阅读次数:215
sum over用法,以及与group by的区别
1、sum over用法 sum(col1) over(partition by col2 order by col3 ) 以上的函数可以理解为:按col2 进行分组(partition ),每组以col3 进行排序(order),并进行连续加总(sum) 表a,内容如下:    B   C  D   02 02 1   02 03 2   02 04 3   02 05...
分类:其他好文   时间:2014-07-04 07:09:15    阅读次数:503
调和级数某个部分和可以为整数么?
问题:证明\[\sum_{k=1}^{n}\frac{1}{k}\notin\mathbb N,\forall n\geq2.\]证明 首先根据Chebyshev定理,在$(\frac{n}{2},n]$上必存在素数$p$,那么显然$p\mid n!$且\[p\mid\frac{n!}{k},k=....
分类:其他好文   时间:2014-07-03 23:41:26    阅读次数:370
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