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Results tagged with c#
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user 135856
C# is a multi-paradigm, managed, garbage-collected, object-oriented programming language created by Microsoft in conjunction with the .NET platform. Use this tag for questions related to C#. In case a specific version of the framework is used, you could also include that tag; for instance .net-2.0.
5
votes
Min & Max heap implementation
I will just repeat my comment - I don't see a point of creating Min and Max Heap functionalities at the same time. MaxHeap data structure can be made by using MinHeap taking all numbers with negative …
- 922
2
votes
C# RGBA to ARGB using shifts
The code looks fine.
I would just suggest, if it's possible, to use uint instead int:
public static uint ToARGB(uint rgba) {
return (rgba << 24) | (rgba >> 8);
}
This way, you can …
- 922
4
votes
Accepted
A simple C# calculator
I completely agree with you that such tasks is a good opportunity to learn new concepts and the language itself. And, as you asked, I have a few comments on your code
Do not call variables by reser …
- 922
1
vote
Finding the number of capital letters in a word grouped by letter
I would prefer to use IEnumerable<char> instead of string. It's more generic solution.
I like the @bruno-costa' answer, but instead of Dictionary I would suggest to use just array of int.
publ …
- 922
1
vote
Bisect Insertion Container for Calculating Running Median
The main my concern is about function FindDestinationIndex, specifically how you organized the while cycle.
I would like to suggest this implementation instead of the original one
private int FindDes …
- 922
17
votes
Accepted
Get all combinations of selecting k elements from an n-sized array
Binomial coefficient \$\binom{n}{k}\$ is growing too fast (with \$n\$) to keep a list of all combinations in memory. I would suggest to use yield return instead.
The main improvement which can be d …
- 922
9
votes
Project Euler Problem #4 - Palindromic number
The desire polyndromic number should be 6-digit number. We can show that this number is divisible on \$11\$ and use this fact to improve performance.
\$P=100000x+10000y+1000z+100z+10y+x = 11(9091x+91 …
- 922
7
votes
3
answers
3k
views
Calculator of combinations without repetition
I am interested to find an absolute value (not an approximation) of "combination without repetition" for given \$n\$ and \$k\$, or \$\binom{n}{k}\$.
The brute force solution would look like this
p …
- 922
7
votes
2
answers
2k
views
Class Matrix implementation
Following the 18.06 Linear algebra course, I was curious to reinvent the matrix class and basic functionality, like \$PA=LU \$ decomposition, Gauss elimination, finding inverse matrix etc.
Any comme …
- 922
3
votes
Accepted
Class Matrix implementation
In the book “Introduction to Linear Algebra”, that comes along with this course, the author highlights several times the advantages of finding L (low-triangle matrix) instead of E (elimination matrix) …
- 922