## Operator priority for sum and division on the list in Scala

My example uses sum function but this is not the only higher order function I've been having problems with. To the point It's been a while but I keep catching myself on writing code like: scala> List(2, 5, 7, 11) sum / 3 which gives me: <console>

## list [-1:] returns the last value, but is not == last value?

I'm still very new to coding, as in I've been coding for a few days. I'm trying to teach myself python by working on a small personal project. I've been playing around with list slicing, and something doesn't add up to me, which is impeding a functio

## Python, create a new list based on the condition applied to an existing list of the same length

Ok, I'm sure there is a very easy way to do this, but I'm rusty in python and I can't work out the pythonic way to do this. I have a list, representing the hours of the day: import numpy as np hourOfDay = np.mod(range(0, 100), 24) Then I want to crea

## Python: Too much space between print lines read from a text file

This question already has an answer here: Python is adding extra newline to the output 5 answers I have this little problem. If i create a list from the content of a txt file and print it row by row there are huge spaces between these outputs. Like:

## A loop to add a list item without high memory performance?

Everybody, a =[0, 0, 2, 4, 6] x=5 This a list (a) and a fix value (x). I need a loop codes which must add with x every element of list and add this value with previous list elements in every loop ( loop must continue as x value). Other words result s

## PyCharm does not recognize the value type of the dictionary

I have a simple code snippet where I set dictionary values as empty lists: new_dict = {} for i in range(1, 13): new_dict[i] = [] Now, if inside the loop on the next line I would type new_dict[i] and add a dot, I expect PyCharm to show me a list of me

## How to modify the elements of a list in the list

I am very new to Python, trying to learn the basics. Have a doubt about the list. Have a list: L = [[1,2,3],[4,5,6],[3,4,6]] The output should be: [[2,4,6],[8,10,12],[6,8,12]] The code that works for me is the following for x in range(len(L)): for y

## Ensure List's ability

I was browsing about how to create own list and landed on this site http://www.vogella.com/tutorials/JavaDatastructureList/article.html where they had the below method. private void ensureCapa() { int newSize = elements.length * 2; elements = Arrays.

## Reading a file contains lists of values ​​in a table

I have a big text file which is an output of some codes and it contains lists of numbers. The format of the lists in the file is as following [ 11.42102518 3.3538624 231.82137052 352.12777653] [ 12.68274035 2.84982539 292.99135783 331.74058558] [ 11.

## how to divide a list into different python strings

i have a list object like this value = [<employee 'Mark Twain' as 'Captain'>,<employee 'Huckle' as 'Cowboy'>] now i would like to have the employee and in a seperate variable like emplo[0] and as[0] like emplo[0] = 'Mark Twain' as[0] = 'Captai

## How to combine two lists of lists with a new list

This question already has an answer here: Get the cartesian product of a series of lists? 10 answers I have a problem like this. I have two lists, A and B, where A=[[1,2],[3,4],[5,6]] and B=[["a","b"],["c","d"]], I

## Sugar-coated tables (dynamically resizable and define any random element)

I want my cake and to eat it. I like the way Lists in C# dynamically expand when you go beyond the initial capacity of the array. However this is not enough. I want to be able to do something like this: int[] n = new int[]; // Note how I'm NOT defini

## C # code to get the list item to send to the email?

I can send emails by using this: mail.To.Add("[email protected]"); However, I'd like to send out emails by getting it from a SharePoint list, so far I have this. List<string> to = new List<string> {"[email protected]"}; foreach

## Find a list of objects for an object with a minimum value and add this object with a new value to a list

This question already has an answer here: How to use LINQ to select object with minimum or maximum property value 11 answers I have a class like this class car { public string carName { get; set; } public decimal price { get; set; }//Group id } I hav

## How to convert a 2x2 card into a list of lists?

Python How do I turn a grid of: x,x x,x to a list of lists?: [['x', 'x'], ['x', 'x']] It's as simple as: with open(...) as f: list_of_lists = [line.strip().split(",") for line in f] # use list_of_lists

## Python means to split a list after items for which a given predicate is true

This question already has an answer here: split list of tuples in lists of list of tuples 5 answers Assume you have a list of arbitrary elements like ['monkey', 'deer', 'lion', 'giraffe', 'lion', 'eagle', 'lion', 'fish'] which should be split into su

## How to use a previously generated tuple to generate a new tuple

I was wondering if someone could help me figure out how to generate a new tuple with a previously generated tuple. What I have so far is just generating an empty tuple import math as m grav = 9.807 #[m/s**2] gravity http://physics.nist.gov/cgi-bin/cu

## Filter a list of haskell

This is the code i have: data Review = Review { artiest :: String, score :: Integer, tour :: Tour, datum :: String, plaats :: String, soortLocatie :: Locatie, topSongs :: [String] } deriving (Eq, Ord, Show) getBestLoc [] beste = beste getBestLoc (x:x

## Group a list by word length

For example, I have a list, say list = ['sight', 'first', 'love', 'was', 'at', 'It'] I want to group this list by word length, say newlist = [['sight', 'first'],['love'], ['was'], ['at', 'It']] Please help me on it. Appreciation!You can use a temp di

## Create a Spotify playlist from the album list

I have a long-running list of favorite albums. I know sites like www.spotmysongs.com will take a text file of a list of artists and song titles and create a playlist out of them on Spotify, but I'd like to do the same with a list of albums, without t

## List identified with another, using new elements in the loop

This question already has an answer here: python list by value not by reference 11 answers I have a list named MyList. I want to copy the list to a new one, then add items to the new one, so I do: MySecondList=MyList for item in MyList: if item==2: M

## Processing a list of lists in Python

So I have a biiiiig list of lists, looks like: big_list = [[17465, [22, 33, 1, 7, 83, 54, 84, -5], '123-432-3'], [13254, [42, 64, 4, -5, 75, -2, 1, 6], '1423-1762-4'], [.................................................................................

So I've got this code already: http://pastebin.com/3wuFNWGA And I've got these typedefs in a .h file: http://pastebin.com/JTG9XHvW I need my push function to add a node to my_stack by allocating memory for the node, storing the data (new element) in

## What is the most efficient way to compress two nested lists into a single-level dictionary?

for example: list1=['k1','k2','k3',['k4','k5',['k6','k7']]] list2=['v1','v2','v3',['v4','v5',['v6','v7']]] and I want to merge them to a dictionary like this: dict1={'k1':'v1','k2':'v2','k3':'v3','k4':'v4','k5':'v5','k6':'v6','k7':'v7'} I have a way

## Delete the selected node in the hierarchy with recursion and generics

I want to flatten a hierarchy of objects with an open Generic T. This link Recursive List Flattening shows how to do that taking a passed IEnumerable. But I want to flatten a passed object T and its property Children in a generic and recursively way.

## Convert a loop and an if statement to a list of comprehension

Is it possible to convert the following to a python list comprehension: values = [a,b,c,d,...] converted_values = [] for item in values: if type(item) == datetime.date: converted_values.append(item) else: converted_values.append(item.decode('utf-8'))

## Can not objects be on the root access list or on an object added to the display list?

Suppose in document class public class Test extends MovieClip { public function Test() { var object1:ClassA = new ClassA(); //addChild(object1); object1.accessRoot(); } } public class A extends MovieClip { public function accessRoot() { var mc : Movi

## Why is tuple faster than the list?

I've just read in "Dive into Python" that "tuples are faster than lists". Tuple is immutable, and list is mutable, but I don't quite understand why tuple is faster. Anyone did a performance test on this?The reported "speed of cons

## How to sort a list & lt; T & gt; by a property in the object

I have a class called Order which has properties such as OrderId, OrderDate, Quantity, and Total. I have a list of this Order class: List<Order> objListOrder = new List<Order>(); GetOrderList(objListOrder); // fill list of orders Now I want to

## C # - Drop a list in a drop-down list

List<String> nameList = new List<String>(); DropDownList ddl = new DropDownList(); List is populated here, then sorted: nameList.Sort(); Now I need to drop it into the dropdownlist, which is where I'm having issues (using foreach): foreach (st