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How to print a list of strings using 'unwords' in Haskell?

I want to print list of strings like shown below. |Name|Country|Age| ------------------ |1 |USA |20 | |2 |UK |19 | I was able to achieve this using the following. printfieldName :: [String] -> String printfieldName [] = [] printfieldName (x:xs) = "|" ++ x ++ "\t" ++ printfieldName (xs) Is it possible to achieve this usi...

C#: Finding all non-last sequences in a sequence

I just can't seem to wrap my head around this... I have a sequence that look a bit like this: A 1 1 50 A 1 2 50 A 2 1 20 A 2 2 60 B 1 1 35 B 1 2 35 C 1 1 80 D 1 1 12 D 1 2 12 D 1 3 15 D 2 1 12 What I need to do is to set those last column values to 0, where they are not the last value. So for example I...

C# 2.0 Design Question - Creating sublists from a larger list

I am looking for a good design/alogrithm/pattern for the following: I have a large list of TODO tasks. Each one of them has an estimated duration. I want to break the larger list into smaller sublists, each sublist containing a max of 4 hours of work. My current algorithm is something like this: while( index < list.Count ) { Li...

iterator for replacing list members in Java?

Hmmm... the Java Iterator<T> has a remove() method but not a replace(T replacement) method. Is there an efficient way to replace selected items in a List? I can use a for-loop to call get(i) and set(i) which is fine for ArrayList, but would suck for a linked list. ...

is it possible to add a list to a structure?

Is it possible to add a list to a struct? public struct test { public string x; list<string> y = new list<string>(); } something like that? ive been trying but im just not getting it ...

arrays in python

Hi I just started work on my first python script What's the best way to create 2 D arrays in python ? What I want is want is to store values like this : X , Y , Z so that I access date like X[2],Y[2],Z[2] or X[n]Y[n],Z[n] where n is varialble I don't know in the beginning how big n would be so I would to append values at the end ...

List Element without iteration

Hello everybody, I want to know how to find an element in list without iteration ...

How to make a new List in Java

We create a Set as Set myset = new HashSet() How do we create a List in Java? ...

Ordering a list of dictionaries in python

I've got a python list of dictionaries: mylist = [ {'id':0, 'weight':10, 'factor':1, 'meta':'ABC'}, {'id':1, 'weight':5, 'factor':1, 'meta':'ABC'}, {'id':2, 'weight':5, 'factor':2, 'meta':'ABC'}, {'id':3, 'weight':1, 'factor':1, 'meta':'ABC'} ] Whats the most efficient/cleanest way to order that list by weight then factor (numericaly)...

Get a unique list/tuple element given a condition in python

Hi! How do I get a tuple/list element given a condition in python? This occurs pretty often and I am looking for a nice-few-lines-pythonic way of doing this. here could be an example: Consider a tuple containing 2D points coordinates like this: points = [[x1, y1],[x2, y2],[x3, y3], ...] And I would like to get the point that minimi...

ASP.NET MVC get dropdown list value

In ASP.NET MVC, how can I get a selected dropdown list value from a posted form? ...

How to display a list of wordpress authors in a dropdown, with a link to the author template?

I'm looking for a way to display the authors of a wordpress blog as a dropdown menu, with an on change event that redirects the user to the author page, which lists all the previous posts written by that user. Is there a way to do that? ...

[MSBuild] How to programatically list all properties defined?

Hi, I'm looking for a way to access all the Build properties defined while executing MSBuild. I have a configuration file. I want to modify the Properties in the configuration file and copy it to a new location. Is there a way to do it? ...

How to convert object[] to List<string> in one line of C# 3.0?

ok I give up, how do you do this in one line? public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture) { //List<string> fields = values.ToList<string>(); //List<string> fields = values as List<string>; //List<string> fields = (List<string>)values; List<string> f...

Populating a list/array by index in Python?

Is this possible: myList = [] myList[12] = 'a' myList[22] = 'b' myList[32] = 'c' myList[42] = 'd' When I try, I get: # IndexError: list assignment index out of range # ...

Java Generics putting on Map<String, ? extends List<String>>

Is there a way to make the following implementation in a type safe manner? public void myMethod( Map<String, ? extends List<String>> map ) { map.put("foo", Collections.singletonList("bar"); } The above implementation doesn't work. It requires a Map<String, ? super List<String>> to compile the method map.put() correctly. But myMetho...

Python's most efficient way to choose longest string in list?

I have a list of variable length and am trying to find (most likely) a list comprehension to allow me to see if the list item currently being evaluated is the longest string contained in the list. And am using Pythong 2.6.1 ie. mylist = ['123','123456','1234'] for each in mylist: if condition1: do_something() elif ____...

How to check availability of short domains containing a word?

I need to check the availability of all short domains that contain a word "hello". It can be anything like "hellohi", "aahellokk" or "hellowhello". I know that there are services, like http://www.bluehost.com/cgi-bin/signup, where you need to type the domains one-by-one. However, I want to bulk-check them. Then, I need to generate a list...

How to automatically sort SPListItems based on a field

I have a requirement that a SPList should be sorted by the "Priority" field (number field, no limits) when a ListItem is added or updated. The sort should work as this: Original Inserted item Modified 1 1 2 2 2 3 ...

What is the best way to check two List<T> lists for equality in C#

There are many ways to do this but I feel like I've missed a function or something. Obviously List == List will use Object.Equals() and return false. If every element of the list is equal and present in the same location in the opposite list then I would consider them to be equal. I'm using value types, but a correctly implemented Dat...