Here is the source of the question. They don't require a tree to be a BST, but my tree is. The algorithm would be the same for a simple binary tree.
And there are two implementations:
A recursive one.
A BFS-based one.
They also ask which implementation is better. I think the BFS-based one is...
I have a string like "food | dairy | milk". It's just a sample. the string may consist of other number of words. How to turn it to dictionary {'food': {}, 'dairy': {}, 'milk': {}} and then add new value to that dict. The output must be: {'food': {'dairy': {'milk': {'eco': {}}}}} due to my big...
How can it be that the first two functions pass, but the third (using recursion) fails? What am I missing?
def for_sum(alist):
v = 0
for i in alist:
v += i
return v
def while_sum(alist):
v,c = 0,0
while True:
try:
v += alist[c]
c+=1
...
Let's say I have the following code:
var app = {};
app.post = {
foo: function() {
// defining a variable without the 'var' keyword inside a function.
bar = "Hello!";
}
}
I think the way that I defined the bar variable is not good. I know you shouldn't have global varia...I have this sorting algorithm which constructs a (unbalanced) tree and performs in-order traversal in order to sort the requested range. However, the more order exists in the input array, closer to time complexity of \$\Theta(n^2)\$ it will get, yet it runs in \$\Theta(n \log n)\$ on most randoml...
The question might seem a little bit long, but I will be very glad if you have read it till the end and told me your opinions.
Let's say I have such entity:
public class FirstEntity
{
public int Id { get; set; }
...
public virtual SecondEntity SecondEntity { get; set; }
public ...
When a custom close reason is used to put a question on-hold, a very undescriptive, unhelpful close reason is put in the yellow box under the question:
put on hold as off-topic by [list of closers] 4 mins ago
This question does not appear to be about programming within the scope defin...
This is again a solution to codeEval challenge https://www.codeeval.com/open_challenges/1/. It was accepted by codeEval.but let me know can I improve it anyway?
#include<iostream>
#include<vector>
#include<fstream>
#include<string>
#include<chrono>
struct input_rec{
int first;
int seco...
One of the ways I learn a new scripting language is to implement a subroutine to convert a network MAC addr into the IPv6 link-local address, as described in RFC 4862. So here is a quick few lines.
My question to you is:
can this code be shrunk any more?
is there a more pythonic way of doing ...
I have an unoriented graph with n vertices and m edges, 1 <= n, m <= 100000. All edges have 0 or 1 weights (two vertices are connected even if the corresponding edge has 0 weight). Vertices indexing starts with 1. I need to find length of the shortest path from vertex A to vertex B.
Input data ...
The community challenge for this month says:
Everyone has played Battleship. Let's implement the logic that sinks one.
But that presumes that there's something to sink. We can't have the armada turn its guns on itself out of boredom.
So I figured I'd write something that could randomly pla...
What is the difference between the following two logic conditions (both CreationDate values are DateTime)?
and abs(datediff(hour, a.CreationDate, e.CreationDate)) < 12
and:
and e.CreationDate > dateadd(hour, -12, a.CreationDate)
and e.CreationDate < dateadd(hour, 12, a.CreationDate)...
I got Dungeon Keeper 2 on GOG a while ago and have been playing it recently. Any enemy hero creatures I capture I try and convert to my side by torturing them, and every so often the Mistress comes in and seems to torture them too.
So does the Mistress gain XP towards her level with this? O...
Meme: Questions that are absurd without context
Originator: Various
Cultural Height: As Often as Possible
Background:
How can I get my wife to stop nagging about a few murders? fable-3
Can I pass out from excessive drinking? bioshock
How can I tell if a corpse is safe to eat? nethack
How c...
