nested-loops

问题 I am trying to implement a use case: Where I want to refresh series of reports , with each report when failed should attempt to run again and then send out a email notification. I have below issues which needs help: In the below code if my first command (cmd[0]) is success , I don't want to execute :erroremail section , but just go run the second command (cmd[1]) instead from the loop. How can I achieve this? Basically when my for loop completes (when all my commands are executed) I don't

问题 So I am working on a UVA problem and I have 4 nested loops to iterate over a list of polygons (each polygon contains a list of points where each point contains an integer x and y to represent it's coordinates, i.e polygon[0] is a point which coordinates are polygon[0].x and polygon[0].y). I am trying to reduce the number of for loops in the program in order to make it more efficient and have a lower runtime. My code is as follows: for i in range(len(polygons)): # iterate over all the

问题 I work with topographic data. For one particular problem, I have written a function in Python which uses a moving window of a particular size to zip through a matrix (grid of elevations). Then I have to perform an analysis on this window and set the cell at the center of the window a resulting value. My final output is a matrix the same size as my original matrix which has been altered according to my analysis. This problem takes 11 hours to run on a small area, so I thought parallelizing the

问题 I'm banging my head on the wall over this for days and finally decided to post this question since I can't find an answer that matches what I'm trying to do. Context: I'm building a dynamic form building platform that describes form elements in a JSON structure like this - { "name": "email", "type": "email", "text": "Your Email", "model": "user.profile.email" } And then in the View I have a recursive ng-repeat that includes the field template like this - <script type="text/ng-template" id=

问题 How to access the index of the grand parent in the nested loop? For example: <div class="loop" data-bind="foreach: rows"> <div class="nested-loop" data-bind="foreach: cells"> <div class ="nested-nested-loop" data-bind="foreach: candidates, css : {selected : $root.isSelected($parentContext.$parentContext.$index(), $parentContext.$index(), $index())}"> Candidate index: <span data-bind="text: $index()"></span> Cell index: <span data-bind="text: $parentContext.$index()"></span> Row index: <span

问题 I have two table with an unequal amount of columns but with the same order, lets call the old and new. old has more columns than new than new. The difference between them is that the spelling has changed as in spaces get replaced by _ and names get shortened from ex item name to item. Ex: old=['Item number','Item name', 'Item status', 'Stock volume EUR','Stock volume USD', 'Location'] new=['Item_number','Item', 'Item_status','Stock volume EUR', 'Location'] In reality if have a 50 column long

问题 I am using Bootstrap with Django and want the .item-container.col-md-4 to be three boxes inside a row. It should look something like this: <div class="row"> <div class="item-container col-md-4> Stuff</div> <div class="item-container col-md-4> Another Thing</div> <div class="item-container col-md-4> This Next One</div> </div> I am getting something more like this: <div class="row"> <div class="item-container col-md-4> Stuff <div class="item-container col-md-4> Another Thing</div> </div> </div>

问题 This code acts as expected printing "Average Number of Runs: 0.99864197" import java.util.Random; public class A { public static void main(String[] args) { int min = -30; int max = 1; test(min, max); } static void test(int min, int max){ int count = 0; Random rand = new Random(0); for(int j = 0; j < 2097152; j++){ int number = min + rand.nextInt(max-min+1); for(int i = 0; i < number; ++i) { System.out.print(""); count++; } } System.out.println("Average Number of Runs: " + count/65536F); } }

问题 This code acts as expected printing "Average Number of Runs: 0.99864197" import java.util.Random; public class A { public static void main(String[] args) { int min = -30; int max = 1; test(min, max); } static void test(int min, int max){ int count = 0; Random rand = new Random(0); for(int j = 0; j < 2097152; j++){ int number = min + rand.nextInt(max-min+1); for(int i = 0; i < number; ++i) { System.out.print(""); count++; } } System.out.println("Average Number of Runs: " + count/65536F); } }

问题 I'm trying to get a result looking something like this: Miniors | Boys | 54kg - 62kg where every value delimited by a pipe | comes from an array containing a certain "type of restriction". For example: ageGroups, genders, weightClasses (as seen above). The way I'm able to get this result right now is if I hard code the nested forEach-loops (using underscorejs), but this means I have to now how many arrays I have to loop over to get wanted result. This works "fine": var categories = []; _.each