Usually people recommend to never implement cryptographic algorithms yourself unless you are an expert in the field. This of course makes a lot of sense mainly because there are numerous things that can go wrong, resulting in a vulnerable implementation.
However, for learning purposes I decided ...
This is my first matrix class which I updated after already asking [here][1] already.
The updated code is below.
Are there any suggestions regarding member function parameters?
Is there a convenient way to get a single function that allows to set/get with a single function?
I considered...
I made this to-do list since I never seriously used jQuery (in particular way AJAX) and I need this kind of script for a project that I'm working on. Principal features:
Use of a database to manage to-do list values (using PDO).
Possibility to add/delete to-do list values.
Possibility to edit t...
I am working on an interview question where I need to return the k most frequent elements given a non-empty array of integers.
Input: nums = [1,1,1,2,2,3], k = 2
Output: [1,2]
Here is my code:
public static void main(String[] args) {
System.out.println(topKFrequent(new int[] {1, 1, 1, 2,...
I'm not sure where my code is going wrong, but I wanted the shapes (circles and stars) to bounce off all sides when they get there, rather than go off screen and then bounce back... I've been sitting here thinking about how to fix my code so that collision detection would work properly but the co...
I was trying to wrap a Logback logger in order to provide some handy methods and already defined default keys of the logged json output and I came up with something like this.
Do you spot any problem with it, or do you have any suggestion?
public class Log {
private Logger logger = Logge...
This simple python code I wrote for a problem asked during an interview. The problem statement is:
Given a tuple (a, b), transform this into (c, d) by applying any of the two below operations multiple time in any order you like:
(a, b) -> (a+b, b)
(a, b) -> (a, a+b)
The prog...
I need to find a hash algorithm that let's me store 32000 MACs in a table.
I've taken a stab at it with some demo program that looks like (where MacSum is my hash macro):
#include <stdio.h>
#define MAX_MAC 32000
#define seed MAX_MAC
#define MacSum(x) (((x)[0]*(2^128) \
+(x)[1...
Task is reshape 3d array from [row, col, slice] to [slice,row,col]. I tried implement base::aperm analog with Rcpp.
// [[Rcpp::export]]
Rcpp::NumericVector array_perm(const Rcpp::NumericVector& x) {
if (Rf_isNull(x.attr("dim"))) {
throw std::runtime_error("'x' does not have 'dim' att...
How to weigh a graph؟؟
my graph:
edge_from= 25476039 edge_to= 1163257579 speed= 5 length= 7 Edge=-100619426#0 Lane=-100619426#0_0 weight= 0
edge_from= 1163257576 edge_to= 25476039 speed= 5 length= 41 Edge=-100619426#1 Lane=-100619426#1_0 weight= 0
edge_from= 25474753 edge_to...
I have created a program that prints the Nth term of the Fibonacci sequence. The fib function needs to use tail recursion. If what I have coded isn't tail recursion, I would like to know how to change the fib function so it does.
#include <iostream>
#include <sstream>
int fib(int n, int i = 0, ...
I have written Js functions to convert Excel sheet into JS Object.
Structure of Excel sheet will look like this for the Single section, there can be multiple sections can have more than 25 question each.
The JS file I ve written for above is like this.
function controller(fileType, JSONOb...
I am trying to accept JavaScript array literals in an HTML text input.
The problem is that HTML text inputs are captured as strings, such that an input of ['name', 'who', 1] becomes "['name', 'who', 1]".
My intention is for the following samples to yield the corresponding outputs.
"['river'...
Background information: Given two different strings of equal length, the spacing between them is the number of other strings you would need to connect them on a word ladder. Alternately, this is 1 less than the number of letters that differ between the two strings.
The challenge: Given an input...
I am given an array that represents a k-ary tree (I am also given the branching factor "k") that is stored in level order. My task was to print the tree in level order.
For example a binary tree stored as {0,1,2,null,4,5,null} (It doesn't have to be full or complete) would print out as:
0
1 ...
I have written a JavaScript analytics tracking script for one of my client. Basically, the script source link is generated using a dynamic GUID and an example of the link is https://whoshouldisee.azurewebsites.net/scripts/F68ADA02-D003-4A56-9BA1-34051CD50381.min.js. This link then points to some ...
