62
votes
6
answers
1.3K
views
Preserving order with LINQ
I use LINQ to Objects instructions on an ordered array. Which operations shouldn't I do to be sure the o
55
votes
14
answers
808
views
Why does the C++ STL not provide any "tree" containers?
Why does the C++ STL not provide any "tree" containers, and what's the best thing to use instead? I want
59
votes
30
answers
2.9K
views
Split List into Sublists with LINQ
Is there any way I can separate a List<SomeObject> into several separate lists of SomeObject, using the
58
votes
16
answers
2.9K
views
54
votes
21
answers
2.7K
views
How to implement a queue using two stacks?
Suppose we have two stacks and no other temporary variable. Is to possible to "construct" a queue data struct
56
votes
26
answers
1.7K
views
How to detect a loop in a linked list?
Say you have a linked list structure in Java. It's made up of Nodes: class Node { Node next; //
61
votes
16
answers
1.5K
views
How does a hash table work?
I'm looking for an explanation of how a hash table works - in plain English for a simpleton like me! Fo
50
votes
24
answers
695
views
How to implement a tree data-structure in Java?
Is there any standard Java library class to represent a tree in Java? Specifically I need to represent the fo
65
votes
5
answers
1.7K
views
53
votes
8
answers
625
views
How to check if a specific key is present in a hash or not?
I want to check whether the "user" key is present or not in the session hash. How can I do this? Note that I
63
votes
30
answers
1.9K
views
59
votes
30
answers
1.5K
views
Simplest code for array intersection in javascript
What's the simplest, library-free code for implementing array intersections in javascript? I want to writ
53
votes
27
answers
1.2K
views
How do you implement a Stack and a Queue in JavaScript?
What is the best way to implement a Stack and a Queue in JavaScript? I'm looking to do the shunting-yard
59
votes
7
answers
2.1K
views
Ukkonen's suffix tree algorithm in plain English
I feel a bit thick at this point. I've spent days trying to fully wrap my head around suffix tree constru
50
votes
19
answers
3K
views
Why is Dictionary preferred over Hashtable in C#?
In most programming languages, dictionaries are preferred over hashtables. What are the reasons behind that?
63
votes
13
answers
2.8K
views
How can I remove a key from a Python dictionary?
When deleting a key from a dictionary, I use: if 'key' in my_dict: del my_dict['key']
60
votes
18
answers
1K
views
How do I sort a list of dictionaries by a value of the dictionary?
I have a list of dictionaries and want each item to be sorted by a specific value. Take into consideration the
50
votes
20
answers
1.3K
views
48
votes
1
answers
2.7K
views
Function not working on c program selection sort
Why this function is not working here? It's not sorting on output. Suppose if I enter 1 4 2 the output is
47
votes
1
answers
1.8K
views
C Program can find (via fopen) in gdb but not release (a.out)
Here's a C simple program, that reads a user input for a file location and prints the first line if such
