sum

Shell编程之循环语句

佐手、 提交于 2020-02-26 01:20:37
一、for循环语句 1.for循环语法结构 1)列表==循环 2)不带列表循环 3)类C风格的for循环 2.应用案例 1)脚本==计算==1-100奇数和 2)判断所输整数是否为质数 3)批量创建用户 4)批量创建用户 5)局域网内脚本检查主机网络通讯 6)判断闰年 二、while循环语句 1.while循环语法结构 2.应用案例 1)脚本计算1-50偶数和 2)脚本同步系统时间 三、until循环 1.until语法结构 2.应用案例 1)具体需求 2)思路 3)落地实现 一、for循环语句 1. for循环语法结构 1)列表==循环 列表for循环:用于将一组命令执行 ==已知的次数== 基本语法格式 for variable in {list} do command command … done 或者 for variable in a b c do command command done 举例说明 # for var in {1..10};do echo $var;done # for var in 1 2 3 4 5;do echo $var;done # for var in `seq 10`;do echo $var;done # for var in $(seq 10);do echo $var;done # for var in {0..10..2};do

Unable to recalculate the total sum of a column on filtering in PHP

南笙酒味 提交于 2020-02-26 00:51:53
问题 I am really struggling with some code. I am trying to get the total of a specific column in a table, my code is below. It works in terms of providing me the total of the column - but when I filter the table, the total amount remains the same and doesn't change when filtered. For example, when I load the page - the sum of the transaction_amount column amounts to 99 - but when I filter this to search for a different account in the filter, it still throws 99 as the sum. This is probably really

Unable to recalculate the total sum of a column on filtering in PHP

倖福魔咒の 提交于 2020-02-26 00:51:31
问题 I am really struggling with some code. I am trying to get the total of a specific column in a table, my code is below. It works in terms of providing me the total of the column - but when I filter the table, the total amount remains the same and doesn't change when filtered. For example, when I load the page - the sum of the transaction_amount column amounts to 99 - but when I filter this to search for a different account in the filter, it still throws 99 as the sum. This is probably really

Excel “Subtotal” array formula - Other form of sum.if

佐手、 提交于 2020-02-25 14:01:28
问题 This is a continuation of the question excel different SUM.IF array function, But since I've marked that as solved, I created a new question. What I wanted there was a distinct sum of some values, and I have implemented @Marc's solution. However the report requirements have changed. I now need to exclude all values that are hidden, but still keep the original calculation method. Basicly i want to add a feature in the same way a SUBTOTAL(109, ref) would work. To this I've created a simple VBA

Excel “Subtotal” array formula - Other form of sum.if

て烟熏妆下的殇ゞ 提交于 2020-02-25 13:56:57
问题 This is a continuation of the question excel different SUM.IF array function, But since I've marked that as solved, I created a new question. What I wanted there was a distinct sum of some values, and I have implemented @Marc's solution. However the report requirements have changed. I now need to exclude all values that are hidden, but still keep the original calculation method. Basicly i want to add a feature in the same way a SUBTOTAL(109, ref) would work. To this I've created a simple VBA

Excel “Subtotal” array formula - Other form of sum.if

落爺英雄遲暮 提交于 2020-02-25 13:56:31
问题 This is a continuation of the question excel different SUM.IF array function, But since I've marked that as solved, I created a new question. What I wanted there was a distinct sum of some values, and I have implemented @Marc's solution. However the report requirements have changed. I now need to exclude all values that are hidden, but still keep the original calculation method. Basicly i want to add a feature in the same way a SUBTOTAL(109, ref) would work. To this I've created a simple VBA

P2486 [SDOI2011]染色

纵然是瞬间 提交于 2020-02-25 02:31:02
题目链接: https://www.luogu.com.cn/problem/P2486 题是好题,毒也很毒。 一杯酒,一键盘,一份代码敲一天,缝缝补补又几年; 最后喜得中国红; 本题质量还是非常上乘的。 一,仔细理解题意; 注意到他是求一段区间内有多少个颜色段,并不是求一段区间内有多少种颜色。一开始因为这个十分疑惑该怎么用线段树进行维护。 二,如何维护区间内多少段颜色段。 考虑到线段树,对于区间更改颜色,这个很简单了。那我们如何把两个子区间合并成一个大区间呢? 假设一段连续的区间值为:123345,首先定义sum[l-r]表示区间[l,r]有多少个颜色段;那么 sum[1-6]=sum[1-3] + sum[4-6];然后注意到有可能3跟4是一种颜色,我们可以通过在维护每个区间的左右端点颜色,进行判断。 如果3-4是一种颜色,那么sum[1-6]就要减1. 所以代码为: sum[id] = sum[id * 2] + sum[id * 2 + 1];if(R_color[id * 2] == L_color[id * 2 + 1]) sum[id] --; 我们通过树链剖分可以轻松的对每个区间进行维护,树链剖分就不细讲了。 我们继续考虑一种情况。 上为样例的一个微改图; 如果我们此时查询编号为5和3结点之间有多少个不同的颜色段。 首先他的重链是1-2-4这条链,用紫色表明了。

PAT甲题题解-1016. Phone Bills (25)-模拟、排序

◇◆丶佛笑我妖孽 提交于 2020-02-24 16:04:03
博主欢迎转载,但请给出本文链接,我尊重你,你尊重我,谢谢~ http://www.cnblogs.com/chenxiwenruo/p/6789229.html 特别不喜欢那些随便转载别人的原创文章又不给出链接的 所以不准偷偷复制博主的博客噢~~ 给出一天24小时内,每个小时内,每分钟的通话费用 给出n个记录,on-line表示通话的开始,off-line表示通话的结束 如果on-line/off-line没有对应的另一个,忽略即可 先按人名排序,名称一样的按时间排序,这里时间统一按分钟来算,即一天有24*60分钟,那么01:01:05就是0*24*60+1*60+5 然后找出彼此配对的on-line和off-line,存入phone数组 然后接下来就是求出每个通话时间的费用即可 (主要是如何计算出费用比较细节麻烦一点,推荐做一下) #include <iostream> #include <cstdio> #include <algorithm> #include <cstring> #define ONLINE 0 #define OFFLINE 1 using namespace std; const int maxn=1000+5; const int DAYMINUTE=24*60; const int HOURMINUTE=60; int toll[24]; int n

Leetcode 数组专项

别来无恙 提交于 2020-02-24 06:47:15
https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence/ 674. 最长连续递增序列 class Solution { public int findLengthOfLCIS(int[] nums) { if(nums.length == 0||nums.length == 1){ //特殊当数组长度为0或者1时返回他们的长度即可 return nums.length; } int count = 1; //临时统计最长序列 int maxCount = 1; //统计最长递增序列 for (int i=0;i<nums.length-1;i++){ //遍历数组 if (nums[i]<nums[i+1]){ //对数组递增进行比较 count++; //如果大于前一个数则count加一 }else{ count = 1; } maxCount =count>maxCount?count:maxCount; //比较输出最长连续递增数 } return maxCount; } } https://leetcode-cn.com/problems/find-pivot-index/ 724. 寻找数组的中心索引 右边和=总和-中心索引值-左边一次加的总和(判断) class

How to sum negative and positive values separately when using groupby in pandas?

谁说我不能喝 提交于 2020-02-23 11:32:10
问题 How to sum positive and negative values differently in pandas and put them let's say in positive and negative columns? I have this dataframe like below: df = pandas.DataFrame({'A' : ['foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'foo'], 'B' : ['one', 'one', 'two', 'three', 'two', 'two', 'one', 'three'], 'C' : np.random.randn(8), 'D' : np.random.randn(8)}) Output is as below: df A B C D 0 foo one 0.374156 0.319699 1 bar one -0.356339 -0.629649 2 foo two -0.390243 -1.387909 3 bar three -0