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Results tagged with c++
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user 117626
C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. This tag should be used for any question which requires knowledge or expertise with the C++ programming language. This is a general tag which is used for any of the C++ language standards (C++98, C++11, C++17, etc.). The question should identify the compiler being used, the operating system, and which of the C++ standards is being targeted.
9
votes
Accepted
C++ determinant calculator - follow-up
double getDeterminant(std::vector<std::vector<double>> vect, int dimension);
This will create a copy of the std::vector. For small std::vector this is not a problem, but it's good to make it a habit …
- 665
3
votes
Stack array based implementation in C++
C is not C++
You are mixing C with C++ and I'm not sure why. The question is tagged c++ but malloc and free are clearly c. Unfortunately, a lot of free coding tutorials online routinely give bad advic …
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5
votes
1
answer
226
views
Evaluating math terms as nested lambdas instead of expression tree
I need to store some math terms. Originally I would use a tree to do it, especially if parsing strings was involved. However, since the expressions are built within the code and need not be parsed, I …
- 665
4
votes
2
answers
435
views
Clebsch-Gordan Coefficients Implementation
In scientific programming I often come into the position of needing to implement a rather obscure and complicated formula. Clebsch-Gordan coefficients are such a thing.
I'm mainly seeking advice on ho …
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2
votes
1
answer
98
views
Pseudograph Implementation
I needed a special graph structure for my code and thought I'd write a generic one for later reuse.
At first I wanted to use pointers instead of indices as map keys but I quickly forfeited that idea o …
- 665
6
votes
1
answer
354
views
Custom cross-platform extended ASCII converter
Problem/Background:
I want to support only some special Unicode characters for my program (Greek letters and some math operators). C++ provides a char type, which is always 1 byte in size, however, th …
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5
votes
Stack Linked list based implementation in C++
Method Names
T stackTop() and void clearStack should not contain the word stack, because they already operate on a class called Stack.
Use const for methods where appropriate
As pointed out in the las …
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3
votes
Accepted
Maximum number of words found in sentences
Time Complexity
First of all, your time complexity is not O(n^2). You only have one loop going from 0 to n and then loop over each character. So your time complexity rather looks like O(n*k). I don't …
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3
votes
2
answers
229
views
Leetcode 14. Longest Common Prefix beats only ~50% of C++ solutions
The task is to find the longest common prefix. While I had no trouble to find the solution, I'm interested in the statistics of my code:
Runtime: 7 ms, faster than 56.36% of C++ online submissions fo …
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2
votes
Accepted
Yet another mathematical vector class
Consistency
You mix and and &&, and not and !. Choose one and stay consistent.
Namespace
Using a namespace is a good idea to avoid name clashes. That being said, giving the namespace a very common nam …
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4
votes
1
answer
198
views
Job_Queue (Thread_Pool) Program
I'm new to std::atomic, std::mutex, std::unique_lock, std::condition_variable and more or less c++11 std::thread, so I wrote this little Job_Queue class, where you can submit a void() function and it …
- 665
0
votes
Matrix implementation
Since all binary operators do not modify your Matrix, they should be implemented as non-member functions.
If (and only if) they need access to private members, implement them a friend. Here, this is c …
- 665